15 Best Smart Thermostats with Google Assistant, Compared
We compared 15 models based on published specs. Find the right thermostat for your HVAC system and Google Assistant voice control needs.
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Finding the best smart thermostats with google assistant requires matching your home’s wiring and voice needs to the right hardware. We compared 15 models based strictly on the specifications published on their listings. The Ecobee Smart Thermostat Essential Wi-Fi leads because it supports Google Assistant, Alexa, and Apple HomeKit simultaneously. This triple-ecosystem compatibility ensures you can control your climate through any major voice platform without buying separate devices. You will also find options with remote sensors, large touchscreens, and dedicated heat pump support. This guide helps you decide which thermostat fits your specific HVAC setup and smart home ecosystem.
Check Your HVAC System Compatibility
Before buying, verify your heating and cooling stages. Most models support standard 2-stage systems. The PORTEXA FocusPRO S200 handles complex 3-heat and 2-cool heat pumps. If you lack a C-wire, the Google Nest Learning Thermostat works without one. Match these specs to your hardware to ensure proper installation and functionality.
| # | Product | Best for | Price |
|---|---|---|---|
| 1 | Ecobee Smart Thermostat Essential Wi-Fi Best overall | Users needing Google Assistant and HomeKit support | |
| 2 | Google Nest Learning Thermostat (4th Gen) with Sensor Also great | multi-platform smart home integration | |
| 3 | Google Nest Learning Thermostat 4th Gen Also great | Users wanting a slim thermostat with a remote sensor | |
| 4 | Ecobee Smart Thermostat Premium with SmartSensor Best premium | multi-platform voice control and air quality monitoring | |
| 5 | Ecobee Smart Thermostat Enhanced Also great | Users needing broad smart home compatibility and C-wire solutions | |
| 6 | Ecobee Smart Thermostat Essential Best budget | Google Assistant users seeking compact design | |
| 7 | Aqara W200 Smart Thermostat with mmWave Radar Best matter | Matter control and mmWave presence detection | |
| 8 | Vine 4-Inch Wi-Fi Smart Thermostat Also great | Large display and voice control | |
| 9 | Vine Large Knob Smart Thermostat Also great | Users wanting physical dial control with Google Assistant | |
| 10 | Google Nest Learning Thermostat 4th Gen Pro Best silver | complex HVAC systems needing pro setup | |
| 11 | Honeywell Home T9 Touchscreen Thermostat Best room sensor | multi-room temperature control | |
| 12 | Siterwell WiFi Thermostat 3.5-Inch Display Also great | Users wanting a large color touchscreen with voice control | |
| 13 | SITERWELL 3.5-Inch Touchscreen Wi-Fi Thermostat Also great | Multi-stage HVAC systems with C-wire | |
| 14 | PORTEXA FocusPRO S200 Smart Thermostat Best heat pump | 3H/2C heat pump systems | |
| 15 | PORTEXA ElitePRO 5-inch Smart Thermostat Best indoor | Users wanting a large 5-inch touchscreen display |
The best fit for you
- You want the best overall Google Assistant thermostat – Ecobee Smart Thermostat Essential Wi-Fi – It supports Google Assistant, Alexa, and HomeKit with standard 2-stage HVAC control.
- You need the most compact design available – Ecobee Smart Thermostat Essential – This model weighs only 3.2 ounces and measures 0.91 inches thick for a slim fit.
- You require Matter support and presence detection – Aqara W200 Smart Thermostat with mmWave Radar – It features Matter compatibility and an mmWave radar sensor for advanced presence detection.
- You prefer physical dial control for adjustments – Vine Large Knob Smart Thermostat – It includes a large knob for tactile control alongside Google Assistant integration.
- You need a large 5-inch touchscreen display – PORTEXA ElitePRO 5-inch Smart Thermostat – This thermostat offers a 5.24-inch screen with air quality monitoring and HomeKit support.
Is Google Assistant support worth your choice?
Google Assistant lets you control temperature by voice. You can adjust settings hands-free while cooking or cleaning. The listed thermostats connect via Wi-Fi to Google Home. This allows remote adjustments from your phone or tablet. You gain convenience through voice commands. You also ensure the device fits your existing smart home ecosystem. This compatibility matters if you already use Google devices for other tasks.
Worth it if
- You use Google Home or Nest Hub devices daily
- You prefer voice commands over manual buttons
- You want remote access via the Google Home app
Skip it if
- You only use Apple HomeKit devices
- You prefer physical dials over voice control
- You lack Wi-Fi connectivity in your home
Ecobee Smart Thermostat Essential Wi-Fi
Best for: Users needing Google Assistant and HomeKit support
- Smart Home Compatibility
- Amazon Alexa, Google Assistant, Apple HomeKit
- C-Wire Requirement
- Adapter sold separately
- HVAC Compatibility
- 24 VAC, heat pump, dual fuel
- HVAC Stages
- 2H/1C or 1H/2C, 2H/1C heat pump
- Wireless Connectivity
- Wi-Fi
- Color
- White
The ecobee Smart Thermostat Essential is a white, Wi-Fi-enabled unit designed for homes with 24 VAC systems. It supports Google Assistant, Apple HomeKit, and Alexa. The device handles 2-stage heating and 1-stage cooling configurations. It includes a color touchscreen and offers energy-saving schedules. You can extend its reach by adding separate room sensors. This model fits users who want broad ecosystem support without complex wiring.
- Supports Google Assistant, Apple HomeKit, and Alexa
- Compatible with 2H/1C and 1H/2C HVAC systems
- Includes a color touchscreen for manual control
- Allows addition of separate room sensors
- Certified Energy Star for efficiency tracking
- Supports fewer heating and cooling stages than premium competitors
- Requires a separate Power Extender Kit for homes without a C-Wire
- Room sensors are sold separately rather than included
- You need a thermostat that works with Google Assistant and Apple HomeKit
- You have a 24 VAC HVAC system with 2-stage heating
- You want to add room sensors for better temperature accuracy
- You require 3-stage heating or cooling capabilities
- You want a thermostat with included room sensors
- You prefer a unit with a built-in C-Wire solution
Verdict: The ecobee Smart Thermostat Essential provides solid multi-ecosystem support and standard 2-stage HVAC control for users who prioritize compatibility and app-based scheduling over advanced heating stages.
Google Nest Learning Thermostat (4th Gen) with Sensor
Best for: multi-platform smart home integration
- Smart Home Compatibility
- Amazon Alexa, Google Assistant, Apple HomeKit
- C-Wire Requirement
- Not required in most homes
- HVAC Compatibility
- 24V, forced air, heat pump, radiant
- Sensor
- Temperature Sensor
- Control Method
- App Control, Alexa
- Width
- 0.15 inches
The Google Nest Learning Thermostat (4th Gen) is a smart thermostat designed to integrate with Google Assistant, Alexa, and Apple HomeKit. It features a 60% larger display and includes a Nest Temperature Sensor for room-specific control. The device works with most 24V HVAC systems and does not require a C wire in most homes. Its learning algorithms adjust to your schedule and outdoor conditions to help reduce energy usage.
- Compatible with Google Assistant, Alexa, and Apple HomeKit
- Includes a Nest Temperature Sensor for better room control
- 60% larger display with Dynamic Farsight
- No C wire required for most installations
- Heavier build at 5.71 ounces compared to lighter competitors
- Limited to 24V system compatibility
- Only one size option available
- You want a thermostat that works with multiple voice assistants
- You need a C wire-free installation
- You want room-specific temperature control
- You have a non-24V HVAC system
- You prefer a smaller form factor
- You need multiple size options
Verdict: Google Nest Learning Thermostat 4th Gen is ideal for users seeking broad smart home compatibility and easy installation without a C wire. It suits those who value a larger display and precise room-level temperature management.
Google Nest Learning Thermostat 4th Gen
Best for: Users wanting a slim thermostat with a remote sensor
- Smart Home Compatibility
- Amazon Alexa, Google Assistant
- Sensor
- Temperature Sensor
- Control Method
- App Control, Alexa
- Width
- 0.15 inches
- Height
- 0.15 inches
- Weight
- 5.71 ounces
This Google Nest Learning Thermostat (4th Gen) is a slim, silver unit that weighs 5.71 ounces. It measures just 0.15 inches in width and height. The device works with Google Assistant and Amazon Alexa. It includes a Nest Temperature Sensor for better accuracy. You can control it via the app or voice commands. This model suits users who want a compact, smart thermostat with included remote sensing.
- Includes a Nest Temperature Sensor for enhanced accuracy
- Compatible with both Google Assistant and Amazon Alexa
- Slim profile at 0.15 inches wide and high
- Lightweight design at 5.71 ounces
- Supports app control for remote management
- Heavier build at 5.71 ounces compared to lighter competitors
- Larger physical footprint than ultra-thin alternatives
- You want a thermostat that includes a remote temperature sensor
- You use Google Assistant or Alexa for voice control
- You prefer a slim, unobtrusive design for your wall
- You need a thermostat with a built-in display for manual adjustments
- You require compatibility with smart home platforms other than Google or Amazon
- You want a device that weighs less than 5 ounces
Verdict: Google Nest Learning Thermostat 4th Gen fits users who value included remote sensing and broad voice assistant support. It is a solid choice for those prioritizing a slim, app-controlled device over manual display interaction.
Ecobee Smart Thermostat Premium with SmartSensor
Best for: multi-platform voice control and air quality monitoring
- Smart Home Compatibility
- Amazon Alexa, Google Assistant, Apple HomeKit
- C-Wire Requirement
- Power Extender Kit included
- Room Sensor Support
- Included
- Wireless Connectivity
- Wi-Fi
- Color
- Black
- Dimensions
- 1.02 × 4.09 × 4.09 inches
This ecobee model works with Google Home, Alexa, and Apple HomeKit. It includes a SmartSensor to manage room comfort and an air quality monitor. The unit features a metal finish and a large display. It supports DIY installation with a Power Extender Kit. This thermostat suits users wanting broad voice assistant support and detailed home environment monitoring.
- Compatible with Google Home, Alexa, and Apple HomeKit
- Includes a SmartSensor for room-by-room comfort
- Built-in air quality monitor with alerts
- Power Extender Kit included for C-wire needs
- Heavier at 1.32 pounds compared to lighter competitors
- Requires an Apple home hub to enable Siri
- Air quality tips require a Smart Security subscription
- You want support for Google Assistant, Alexa, and Apple HomeKit
- You need a SmartSensor to manage hot or cold spots
- You want to monitor indoor air quality
- You prefer a lighter, more compact unit
- You do not want to pay for a Smart Security subscription
- You only use Google Assistant and want a simpler device
Verdict: The ecobee Smart Thermostat Premium is a robust option for users who need multi-platform voice control and room-specific sensors. It fits homes where air quality monitoring and broad smart home integration are priorities.
Ecobee Smart Thermostat Enhanced
Best for: Users needing broad smart home compatibility and C-wire solutions
- Smart Home Compatibility
- Amazon Alexa, Google Assistant, Apple HomeKit
- HVAC Compatibility
- 90% of HVAC systems
- Wireless Connectivity
- Wi-Fi
- Color
- Black
- Dimensions
- 0.94 × 4.09 × 4.09 inches
- Weight
- 1.1 pounds
The ecobee Smart Thermostat Enhanced supports Google Assistant, Alexa, and Apple HomeKit. It includes a Power Extender Kit for homes without a C-wire. Built-in occupancy sensing adjusts temperatures automatically. The device measures 4.09 inches square and weighs 15.9 ounces. It fits buyers who want broad smart home compatibility and easy installation without extra wiring purchases.
- Works with Google Assistant, Alexa, and Apple HomeKit
- Includes Power Extender Kit for C-wire installation
- Built-in occupancy sensing for automatic adjustments
- 3-year warranty coverage
- Heavier build at 15.9 ounces compared to lighter competitors
- Room sensors sold separately rather than included
- Shorter 3-year warranty versus 5-year options on other models
- You need Google Assistant compatibility alongside Apple HomeKit
- Your HVAC system lacks a C-wire
- You want automatic temperature adjustments based on occupancy
- You require included room sensors for multi-room comfort
- You prefer a lighter wall-mounted device under 10 ounces
- You want a longer warranty than 3 years
Verdict: ecobee Smart Thermostat Enhanced offers versatile smart home integration and includes necessary wiring hardware. It suits users who prioritize broad platform support and automatic occupancy-based comfort control.
Ecobee Smart Thermostat Essential
Best for: Google Assistant users seeking compact design
- Smart Home Compatibility
- Amazon Alexa, Google Assistant, Apple HomeKit
- Wireless Connectivity
- Wi-Fi
- Color
- White
- Dimensions
- 0.91 × 3.62 × 3.62 inches
- Weight
- 3.2 ounces
The ecobee Smart Thermostat Essential is a compact, white Wi-Fi thermostat designed for broad smart home integration. It supports Siri, Alexa, and Google Assistant, ensuring compatibility with your existing ecosystem. Measuring 3.62 inches square and weighing just 3.2 ounces, it offers a slim profile for easy installation. This model suits users seeking a reliable, Energy Star certified option that works seamlessly with major voice assistants without requiring additional hardware.
- Supports Siri, Alexa, and Google Assistant
- Energy Star certified for efficiency
- Compact 3.62-inch square design
- Lightweight at 3.2 ounces
- Smaller 3.62-inch display compared to premium models with larger screens
- Lighter 3.2-ounce build may feel less substantial than heavier units
- Basic functionality compared to premium versions with advanced sensors
- You want a thermostat that works with Google Assistant
- You prefer a compact, lightweight device
- You need Energy Star certification
- You require a large touchscreen display
- You need built-in temperature sensors
- You prefer a heavier, more premium build
Verdict: The ecobee Smart Thermostat Essential fits users who prioritize compatibility with Google Assistant and a slim, lightweight design. It is a practical choice for those seeking an Energy Star certified thermostat without the bulk of larger, more feature-heavy models.
Aqara W200 Smart Thermostat with mmWave Radar
Best for: Matter control and mmWave presence detection
- Smart Home Compatibility
- Amazon Alexa, Google Assistant, Apple HomeKit, Matter
- C-Wire Requirement
- Adapter sold separately
- HVAC Compatibility
- Furnaces, AC, heat pumps, boilers, PTAC
- Room Sensor Support
- Supported (sold separately)
- Wireless Connectivity
- Zigbee, Thread
- Display Size
- 4 in
The Aqara W200 is a smart thermostat featuring a 4-inch touchscreen and Matter 1.4 connectivity. It supports Apple Home, Google Home, and Alexa. The device includes a built-in mmWave radar for precise presence detection. It also functions as a display for compatible Aqara doorbells. This unit suits users who want local control and advanced sensor data for their HVAC system.
- Matter 1.4 support for local control across Apple, Google, and Alexa
- Built-in mmWave radar for accurate human presence detection
- 4-inch full-color touchscreen with curved glass design
- Functions as a visual panel for Aqara video doorbells
- Apple Adaptive Temperature adjusts settings based on iPhone activity states
- C-wire adapter is sold separately for installation
- Room temperature sensors are sold separately
- Video doorbell integration is limited to specific Aqara models
- You want Matter 1.4 support for local smart home control
- You need precise presence detection using built-in mmWave radar
- You already use Aqara doorbells and want a unified display
- You need a C-wire included with the thermostat
- You require room sensors included in the box
- You want integration with non-Aqara video doorbells
Verdict: Aqara W200 4-inch Matter Thermostat fits users who prioritize local Matter control and advanced presence sensing. It is ideal for those with compatible Aqara doorbells who want a unified wall display.
Vine 4-Inch Wi-Fi Smart Thermostat
Best for: Large display and voice control
- Smart Home Compatibility
- Amazon Alexa, Google Assistant
- C-Wire Requirement
- Required
- HVAC Compatibility
- 24V AC, conventional, heat pump
- HVAC Stages
- 2H/2C conventional, 2H/2C heat pump
- Display Size
- 4.0 in
- Wireless Connectivity
- Wi-Fi
The Vine 4" WiFi Thermostat offers a large color display and voice control via Google Assistant or Alexa. It supports 2H/2C conventional and heat pump systems. You need a C-wire for installation. The unit features customizable screens and energy-saving schedules. It suits users who want a clear interface and broad HVAC compatibility without complex setup.
- 4.0-inch high-resolution color touch screen
- Compatible with Google Assistant and Alexa
- Supports 2H/2C conventional and heat pump systems
- Requires C-wire for stable operation
- C-wire requirement limits installation in older homes
- No built-in temperature sensor included
- You want a large, easy-to-read display
- You have a C-wire available
- You use Google Assistant or Alexa
- You cannot install a C-wire
- You need a built-in temperature sensor
- You prefer a smaller form factor
Verdict: Vine 4" WiFi Thermostat fits users who prioritize a large display and voice control. It works well for homes with C-wires and standard HVAC systems.
Vine Large Knob Smart Thermostat
Best for: Users wanting physical dial control with Google Assistant
- Smart Home Compatibility
- Amazon Alexa, Google Assistant
- C-Wire Requirement
- Required
- HVAC Compatibility
- 24V AC, conventional, heat pump
- HVAC Stages
- 2H/2C conventional, 2H/2C heat pump
- Display Size
- 3.5"
- Wireless Connectivity
- Wi-Fi
The Vine ST300 combines a 3.5-inch touchscreen with a physical dial for manual control. It supports 2H/2C conventional and heat pump systems. You get Wi-Fi connectivity for app and voice control via Google Assistant and Alexa. The unit includes a dimmable night light and 7-day scheduling. It requires a C-wire for installation. This model suits users who want tactile input alongside digital features.
- Physical dial for precise manual adjustments
- 3.5-inch touchscreen display
- Works with Google Assistant and Alexa
- Built-in dimmable night light
- 7-day flexible scheduling
- 3.5-inch screen is smaller than the 4-inch or 5-inch displays on other list models
- Requires a C-wire for power
- Supports only 2H/2C systems, limiting compatibility with multi-stage HVAC setups
- You prefer a physical knob for quick temperature changes
- You need a thermostat compatible with Google Assistant
- You have a 24V AC conventional or heat pump system
- You require a larger display than 3.5 inches
- You do not have a C-wire installed
- You need support for more than 2 heat and 2 cool stages
Verdict: Vine ST300 Smart Thermostat with Large Knob fits users who value tactile control alongside smart features. It is a solid option for standard 2H/2C systems needing Google Assistant integration.
Google Nest Learning Thermostat 4th Gen Pro
Best for: complex HVAC systems needing pro setup
- Smart Home Compatibility
- Amazon Alexa, Google Assistant
- HVAC Compatibility
- 24V, dual-fuel, geothermal, heat pump
- Sensor
- Temperature Sensor
- Color
- Silver
- Dimensions
- 7 × 7 × 3 inches
- Weight
- 1.46 pounds
This Google Nest thermostat is designed for professional installation on complex HVAC systems. It supports 24V, dual-fuel, geothermal, and heat pump setups. The unit includes a Nest Temperature Sensor for precise room-based control. Its silver finish measures 7 inches wide and weighs 1.46 pounds. It works with Google Assistant and Amazon Alexa. This model suits homes requiring certified installer configuration for peak efficiency.
- Compatible with geothermal and dual-fuel systems
- Includes Nest Temperature Sensor
- Professional calibration for efficiency
- Works with Google Assistant and Alexa
- Requires professional installation
- Heavier at 1.46 pounds
- Larger 7-inch width
- You have a geothermal or dual-fuel system
- You want certified installer configuration
- You need room-based temperature sensing
- You prefer DIY installation
- You have a simple 24V system only
- You want a smaller footprint
Verdict: Google Nest Learning Thermostat Pro Edition fits homeowners with complex heating and cooling systems who need professional setup. It delivers precise control through its included temperature sensor and broad HVAC compatibility.
Honeywell Home T9 Touchscreen Thermostat
Best for: multi-room temperature control
- Smart Home Compatibility
- Amazon Alexa, Google Assistant
- C-Wire Requirement
- Required, power adapter included
- HVAC Compatibility
- Forced air, hot water, steam, heat pump
- Room Sensor Support
- Supported (sold separately)
- Wireless Connectivity
- Wi-Fi
- Sensor
- Room Sensor
The Honeywell Home T9 is a smart thermostat with a touchscreen and Wi-Fi connectivity. It supports Google Assistant and Alexa. The unit measures 3.7 by 4.92 inches and weighs 7.2 ounces. It requires a C-wire, with an adapter included. You can add Smart Room Sensors to focus on specific areas. It works with forced air, hot water, steam, and heat pump systems.
- Supports Smart Room Sensors for multi-room focus
- Includes C-wire power adapter
- Works with Google Assistant and Alexa
- Features a touchscreen display
- Requires a C-wire for power
- Does not work with electric baseboard heat
- Room sensors are sold separately
- You want to control temperature in specific rooms
- You need a thermostat that works with heat pumps
- You already use Google Assistant or Alexa
- You have electric baseboard heating
- You cannot install a C-wire
- You prefer a thermostat without a touchscreen
Verdict: Honeywell Home T9 WiFi Thermostat suits homes with heat pumps or forced air systems where room-specific comfort matters. It fits users who already use Google Assistant or Alexa and can install a C-wire.
Siterwell WiFi Thermostat 3.5-Inch Display
Best for: Users wanting a large color touchscreen with voice control
- Smart Home Compatibility
- Amazon Alexa, Google Assistant
- HVAC Compatibility
- 24VAC, gas, oil, electric
- Wireless Connectivity
- WiFi
- Display Size
- 3.5-inch
- Color
- White
- Control Method
- App Control, Voice Control, Alexa
The Siterwell GS366A-MWAC is a WiFi thermostat with a 3.5-inch full-color touchscreen. It works with Google Assistant and Amazon Alexa. The unit supports 24VAC systems, including gas, oil, and electric heat. It measures 4.13 inches square and weighs 4.8 ounces. This model suits you if you want a clear display and broad HVAC compatibility for smart home control.
- 3.5-inch full-color touchscreen for clear visibility
- Compatible with Google Assistant and Amazon Alexa
- Supports 24VAC gas, oil, and electric HVAC systems
- UL-certified for North American safety standards
- 3.5-inch display is smaller than the 5-inch screens found on some competitors
- 4.8-ounce weight is slightly heavier than some slim-profile alternatives
- C-wire converter is sold separately for continuous power
- You want a large, high-resolution touchscreen for easy reading
- You use Google Assistant or Alexa for voice control
- You have a 24VAC system with gas, oil, or electric heat
- You need a thermostat with a 5-inch or larger display
- You prefer a unit with a lighter, more compact build
- You want a C-wire converter included in the box
Verdict: Siterwell WiFi Thermostat 3.5-Inch Display fits users who prioritize a bright, easy-to-read screen and broad heating system compatibility over a larger footprint or included accessories.
SITERWELL 3.5-Inch Touchscreen Wi-Fi Thermostat
Best for: Multi-stage HVAC systems with C-wire
- Smart Home Compatibility
- Amazon Alexa, Google Assistant
- C-Wire Requirement
- Required
- HVAC Compatibility
- 24VAC, gas, oil, electric
- HVAC Stages
- Single-stage, multi-stage
- Display Size
- 3.5"
- Wireless Connectivity
- Wi-Fi
The Siterwell Smart Thermostat offers a 3.5-inch full-color touchscreen for clear temperature and humidity readings. It supports single-stage and multi-stage HVAC systems, including gas, oil, and electric units. You can control it via Wi-Fi, the smartphone app, or voice commands through Google Assistant and Alexa. The unit requires a C-wire for steady power and includes a PIN-code lock for security. This model is UL-certified and comes with a three-year warranty.
- 3.5-inch full-color responsive touchscreen display
- Supports single-stage and multi-stage HVAC systems
- Compatible with gas, oil, and electric heat sources
- Works with Google Assistant and Amazon Alexa
- Includes a three-year warranty
- Requires a C-wire for installation
- 3.5-inch display is smaller than premium competitors
- Three-year warranty is shorter than some rivals
- You need a thermostat that supports multi-stage heating and cooling
- You want voice control via Google Assistant or Alexa
- You prefer a color touchscreen for easy reading
- You do not have a C-wire available
- You want a larger display than 3.5 inches
- You need a warranty longer than three years
Verdict: Siterwell Smart Thermostat 3.5-Inch Touchscreen fits homes with standard 24VAC HVAC systems that need multi-stage support. It is a practical option for users who want Google Assistant integration and a color screen without premium pricing.
PORTEXA FocusPRO S200 Smart Thermostat
Best for: 3H/2C heat pump systems
- Smart Home Compatibility
- Amazon Alexa, Google Assistant
- HVAC Compatibility
- Heat pump, conventional
- HVAC Stages
- 3H/2C heat pump, 2H/2C conventional
- Wireless Connectivity
- 2.4GHz or 5GHz WiFi
- Color
- White
The PORTEXA FocusPRO S200 supports 3H/2C heat pump systems and 2H/2C conventional setups. It connects via 2.4GHz or 5GHz WiFi for app control. You get voice control with Google Assistant and Alexa. The device offers flexible scheduling and geofencing. Its UWP wall plate aids installation. This thermostat suits homes with complex HVAC configurations needing broad compatibility.
- Supports 3H/2C heat pump systems
- Connects to 2.4GHz or 5GHz WiFi
- Compatible with Google Assistant and Alexa
- Includes geofencing and flexible scheduling
- Limited to 3 heat and 2 cool stages for heat pumps
- Only offers 2 heat and 2 cool stages for conventional systems
- You have a 3H/2C heat pump system
- You need 5GHz WiFi support
- You want Google Assistant voice control
- You require more than 3 heat stages
- You need a thermostat with a larger display
- You prefer a system without WiFi connectivity
Verdict: The PORTEXA FocusPRO S200 Smart Thermostat fits users with 3H/2C heat pump systems who need reliable Google Assistant integration and dual-band WiFi support.
PORTEXA ElitePRO 5-inch Smart Thermostat
Best for: Users wanting a large 5-inch touchscreen display
- Smart Home Compatibility
- Amazon Alexa, Google Assistant, Apple HomeKit
- HVAC Compatibility
- Heat pumps, conventional, dual-fuel
- Wireless Connectivity
- WiFi
- Display Size
- 5"
- Color
- Black
- Keypad Type
- Touchscreen
The PORTEXA ElitePRO S1200 is a smart thermostat with a 5-inch touchscreen display and WiFi connectivity. It supports Google Home, Alexa, and Apple Home for voice control. The device monitors indoor air quality, including humidity and VOCs. It also integrates with Ring and First Alert video doorbells. This unit suits users who want a large interface and air quality monitoring alongside standard smart home compatibility.
- Large 5-inch customizable touchscreen display
- Supports Google Home, Alexa, and Apple Home
- Monitors indoor air quality including humidity and VOCs
- Integrates with Ring and First Alert video doorbells
- 5-inch display is larger than the standard 4-inch screens found on many competitors
- Brand is PORTEXA, not Honeywell Home, despite the model name suggesting otherwise
- You want a large touchscreen for easier temperature adjustments
- You need indoor air quality monitoring for humidity and VOCs
- You use Ring or First Alert video doorbells and want to view visitors on the thermostat
- You prefer a smaller, more compact device that fits standard wall plates
- You want a thermostat from the established Honeywell Home brand
- You do not need air quality monitoring or doorbell integration
Verdict: The PORTEXA ElitePRO 5-inch Smart Thermostat fits users who prioritize a large 5-inch display and air quality monitoring. It is a practical option for those who also want to integrate video doorbell feeds into their climate control interface.
Specifications side by side
| Spec | Ecobee Smart Thermostat Essential Wi-Fi | Google Nest Learning Thermostat (4th Gen) with Sensor | Google Nest Learning Thermostat 4th Gen | Ecobee Smart Thermostat Premium with SmartSensor | Ecobee Smart Thermostat Enhanced | Ecobee Smart Thermostat Essential | Aqara W200 Smart Thermostat with mmWave Radar | Vine 4-Inch Wi-Fi Smart Thermostat | Vine Large Knob Smart Thermostat | Google Nest Learning Thermostat 4th Gen Pro | Honeywell Home T9 Touchscreen Thermostat | Siterwell WiFi Thermostat 3.5-Inch Display | SITERWELL 3.5-Inch Touchscreen Wi-Fi Thermostat | PORTEXA FocusPRO S200 Smart Thermostat | PORTEXA ElitePRO 5-inch Smart Thermostat |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Smart Home Compatibility | Alexa, Google Assistant, HomeKit | Alexa, Apple HomeKit, Google Assistant | Alexa, Google Home | Alexa, Siri, Google Home | Alexa, Google Assistant, HomeKit | Siri, Alexa, Google Assistant | Apple Home, Siri, Google, Alexa | Alexa, Google Assistant | Alexa, Google Assistant | Alexa, Google Home | Alexa, Google Assistant | Alexa, Google Assistant | Alexa, Google Assistant | Amazon Alexa, Google Assistant | Alexa, Apple Home, Google Home, Matter |
| C-Wire Requirement | Adapter sold separately | Not required in most homes | – | Power Extender Kit included | – | – | Adapter sold separately | Required | Required | – | Required, power adapter included | – | Required | – | – |
| HVAC Compatibility | 24 VAC, heat pump, dual fuel | 24V, forced air, heat pump, radiant | – | – | 90% of HVAC systems | – | Furnaces, AC, heat pumps, boilers, PTAC | 24V AC, conventional, heat pump | 24V AC, conventional, heat pump | 24V, dual-fuel, geothermal, heat pump | Forced air, hot water, steam, heat pump | 24VAC, gas, oil, electric | 24VAC, gas, oil, electric | Heat pump, conventional | Heat pumps, conventional, dual-fuel |
| HVAC Stages | 2H/1C or 1H/2C, 2H/1C heat pump | – | – | – | – | – | – | 2H/2C conventional, 2H/2C heat pump | 2H/2C conventional, 2H/2C heat pump | – | – | – | Single-stage, multi-stage | 3H/2C heat pump, 2H/2C conventional | – |
| Room Sensor Support | – | – | – | Included | – | – | Supported (sold separately) | – | – | – | Supported (sold separately) | – | – | – | – |
| Wireless Connectivity | – | – | – | – | – | – | Zigbee, Thread | – | – | – | – | WiFi | – | 2.4GHz or 5GHz WiFi | WiFi |
| Display Size | – | – | – | – | – | – | 4 in | 4.0 in | 3.5" | – | – | 3.5-inch | 3.5" | – | 5" |
| HVAC System Compatibility | – | – | – | – | – | – | – | – | – | – | – | – | – | Heat Pump, Conventional | – |
| Sensor | – | Temperature Sensor | Temperature Sensor | – | – | – | – | – | – | Temperature Sensor | Room Sensor | – | – | – | – |
| Color | White | Polished Gold | Polished Silver | Black | Black | White | Black | White | White | Silver | White | White | Black | White | Black |
| Keypad Type | – | – | – | – | – | – | Touchscreen | – | – | – | Touchscreen | – | – | – | Touchscreen |
| Control Method | Alexa | App Control, Alexa | App Control, Alexa | Alexa | Alexa | Alexa | Alexa | Alexa | Alexa | Alexa | Alexa | App Control, Voice Control, Alexa | App Control, Voice Control, Alexa | Alexa | Alexa |
| Placement | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Indoor |
| Compatibility | Google Home | Google Home, Apple Home | Google Home | Google Home | Google Home | Google Home | Google Home, Apple Home | Google Home | Google Home | Google Home | Google Home | Google Home | Google Home | Google Home | Google Home, Apple Home |
| Dimensions | 0.91 × 3.62 × 3.62 inches | – | – | 1.02 × 4.09 × 4.09 inches | 0.94 × 4.09 × 4.09 inches | 0.91 × 3.62 × 3.62 inches | – | 0.9 × 3.5 × 3.5 inches | 0.91 × 4.33 × 3.85 inches | 7 × 7 × 3 inches | 4.92 × 3.7 × 0.94 inches | 1.04 × 4.13 × 4.13 inches | – | – | 0.96 × 5.24 × 3.54 inches |
| Weight | 3.2 ounces | 5.71 ounces | 5.71 ounces | 1.32 pounds | 1.1 pounds | 3.2 ounces | – | – | 9.6 ounces | 1.46 pounds | 7.2 ounces | 4.8 ounces | – | – | – |
| Width | – | 0.15 inches | 0.15 inches | – | – | – | – | – | – | – | – | – | – | – | – |
| Height | – | 0.15 inches | 0.15 inches | – | – | – | – | – | – | – | – | – | – | – | – |
| Size | 1-Pack | One Size | One Size | 2.9 x 4.09 x 4.09 inches | Pack of 1 | – | – | Screen 4.0" | Screen 3.5" | – | 3.7 x 4.92 x 0.94 inches | – | – | – | – |
| Model | EB-STATE7-01 | CE911542 | – | EB-STATE6-01 | EB-STATE6L-01 | – | SRT-A06E | TJ-560-3 | ST300 | G5AJK GJQ8U | RCHT9510WFW2001 | GS366A-MWAC | GS366A-MWAC | TH2320WF4010 | ElitePRO |
If you prefer dedicated Google hardware, compare specifications for the best google smart thermostats before deciding.
How We Selected These Thermostats
We identified compatible models by scanning Amazon listings for explicit mentions of Google Assistant in the title or feature lists. This ensures every device on this list supports the voice control you need. We only included one size or variant from each product family to keep the comparison clear and focused. You can trust that all details come directly from the published specifications on those listings. We did not handle any products physically. All information is based on the data provided by the manufacturers and retailers. This approach keeps the guide strictly factual and spec-focused for your needs.
How to choose the right thermostat
Check HVAC stage support
Verify your heating and cooling stages before buying. Most models handle standard two-stage systems. The PORTEXA FocusPRO S200 supports complex three-heat and two-cool heat pumps. If your system has multiple stages, ensure the thermostat matches. Mismatched stages cause inefficient operation. Check the specifications for heat and cool stage counts. This ensures your hardware can control all zones properly. Match the spec to your system's capabilities.
Verify C-wire availability
Check if your thermostat needs a C-wire for power. The Google Nest Learning Thermostat works without one. Most other models require a standard C-wire connection. If you lack this wire, you may need an adapter or professional installation. The Ecobee Smart Thermostat Enhanced includes necessary wiring hardware. Verify your existing wiring before purchasing. This prevents compatibility issues during setup. Ensure your system provides continuous power for reliable operation.
Compare display sizes
Consider the display size for readability. The PORTEXA ElitePRO features a large five-inch touchscreen. The Vine model offers a four-inch screen. Smaller models like the Ecobee Essential measure 3.62 inches. A larger screen makes settings easier to read. Choose based on your visual preference. Check the dimensions in the specifications. This helps you decide if you prefer a prominent display or a discreet wall unit.
Look for remote sensors
Remote sensors improve temperature accuracy in different rooms. The Google Nest Learning Thermostat includes a temperature sensor. The Honeywell Home T9 supports room sensors for multi-zone control. The Aqara W200 uses mmWave radar for presence detection. Sensors help balance comfort across your home. Check if the model includes or supports additional sensors. This feature is useful for homes with varying temperatures. It ensures your climate control responds to actual occupancy.
Check smart home platforms
Ensure the thermostat supports your existing smart home ecosystem. The Ecobee Essential supports Google Assistant, Alexa, and HomeKit. The Aqara W200 adds Matter support for broader compatibility. The Vine model works with Alexa and Google Assistant. Verify the listed compatibility before purchasing. This ensures seamless integration with your voice assistants. Check the attributes for specific platform support. Matching your ecosystem simplifies automation and remote control.
Frequently asked questions
Which smart thermostat works best with Google Assistant for whole-home comfort?
The Honeywell Home T9 is ideal for multi-room control. It includes a dedicated room sensor to manage temperature in specific areas. This allows you to prioritize comfort in occupied rooms rather than just the hallway where the main unit sits. It connects via Wi-Fi and integrates with Google Home for voice adjustments.
Do I need a C-wire for these Google Assistant thermostats?
Most models require a standard C-wire for continuous power. However, the Google Nest Learning Thermostat (4th Gen) is designed to work without one. It draws power from your existing heating and cooling wires. This makes it a practical choice if your home lacks the necessary wiring infrastructure for other smart devices.
Which thermostat supports Matter for future-proof smart home integration?
The Aqara W200 Smart Thermostat is the best choice for Matter support. It connects via Wi-Fi and supports Google Assistant, Alexa, and Apple HomeKit. This protocol ensures broader compatibility with emerging smart home standards. It also features mmWave radar for advanced presence detection to optimize heating and cooling automatically.
Can I use a smart thermostat with a heat pump system?
Yes, the PORTEXA FocusPRO S200 is built for complex heat pump setups. It supports 3-heat and 2-cool stages, which is common in efficient heat pump systems. It connects via dual-band Wi-Fi and works with Google Assistant. This ensures your heating and cooling stages switch correctly based on voice commands or schedules.
Which thermostat offers the largest display for easy reading?
The PORTEXA ElitePRO features a large 5-inch touchscreen display. It is designed for indoor placement and offers clear visibility of settings. The device supports Google Assistant and Apple HomeKit. Its size makes it easier to adjust temperatures and view status information without needing to use your phone or tablet.
Do these thermostats include remote sensors for better accuracy?
Several models include remote sensors to improve temperature accuracy. The Google Nest Learning Thermostat (4th Gen) comes with a temperature sensor. The Ecobee Smart Thermostat Premium also includes a SmartSensor. These devices help measure temperature in specific rooms, allowing the main unit to adjust the climate based on where you actually spend time.
Which thermostat is best for users who prefer physical controls?
The Vine Large Knob Smart Thermostat is designed for tactile control. It features a large physical dial alongside a 3.5-inch screen. This allows you to adjust settings manually while still benefiting from Google Assistant integration. It supports standard 2H/2C systems and connects via Wi-Fi for remote management when needed.
Which thermostat is the most compact for small wall spaces?
The Ecobee Smart Thermostat Essential is the most compact option. It weighs only 3.2 ounces and measures 0.91 inches thick. This slim profile fits well in tight spaces without overwhelming the wall. It supports Google Assistant, Alexa, and HomeKit, providing full smart home integration in a minimal footprint.
