Smart Thermostats
Best Smart House Thermostat (2026): 4 Models Side by Side
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The Honeywell Home Smart Color Thermostat leads this list: a Wi-Fi thermostat with a customizable color touchscreen, app control and Alexa and Google support, plus ENERGY STAR certification. The Sensi Touch adds a color display with usage reports, while the ecobee bundle adds room sensors and security features.
Starting out? See the main guide: Best Smart Thermostat
Top picks at a glance
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9.8 View on Amazon -
9.8 View on Amazon -
Also Greatecobee Comfort and Security Bundle9.3 View on Amazon -
Also Greatmeross Smart Thermostats for Home9.2 View on Amazon
Compare the specs
Ranked on room sensor support, works with alexa / google, energy star, phone app control from each listing, plus how many buyers have rated it. A dash (—) means we could not confirm that figure from the listing.
| Pick | Room sensor support | Works with Alexa / Google | ENERGY STAR | Phone app control | Weight | Warranty |
|---|---|---|---|---|---|---|
| 1. Honeywell Home RTH9600WF Smart Color Thermostat ENERGY | — | Yes | Yes | Yes | 0.7 lb | 2-year |
| 2. Sensi Touch Smart Thermostat by Emerson | — | Yes | Yes | Yes | 0.85 lb | 3-year |
| 3. ecobee Comfort and Security Bundle | Yes | Yes | Yes | — | — | — |
| 4. meross Smart Thermostats for Home | — | Yes | — | Yes | 0.54 lb | 3-year |
Honeywell Home RTH9600WF Smart Color Thermostat ENERGY
A Wi-Fi thermostat with a customizable color touchscreen, app control and indoor and outdoor readings.
- Works with Alexa / Google
- ENERGY STAR
- Phone app control
- 2-year warranty stated
Good for
- Buyers who want a color touchscreen
- Buyers who want app and voice control
Skip it if
- You want a thermostat without a C-wire
- You want a thermostat for electric baseboard heat
The color touchscreen changes to any color you choose, and the home screen shows indoor and outdoor temperature and humidity plus a daily weather forecast. App control works with Alexa, Google Assistant and Cortana, with flexible programming options. It works with forced air, hot water and steam, and heat pumps with electric backup. It weighs 0.7 lb and carries a 2-year warranty.
Sensi Touch Smart Thermostat by Emerson
A color touchscreen thermostat with app control, usage reports and maintenance reminders.
- Works with Alexa / Google
- ENERGY STAR
- Phone app control
- 3-year warranty stated
Good for
- Buyers who want usage reports and alerts
- Buyers who want a DIY install with app steps
Skip it if
- You want a thermostat without a C-wire
- You want a warranty longer than 3 years
The large color display shows easy-to-read temperatures with intuitive menus, and the built-in level and illuminated terminals ease installation. The app gives remote access, usage reports, equipment alerts and filter replacement reminders. It works with Alexa, Apple HomeKit, Google Assistant and SmartThings, and it is ENERGY STAR certified. It weighs 0.85 lb and carries a 3-year warranty.
ecobee Comfort and Security Bundle
A thermostat bundle with room sensors, a radar occupancy sensor and built-in Alexa and Siri.
- Room sensor support
- Works with Alexa / Google
- ENERGY STAR
Good for
- Buyers who want room sensors for doors and windows
- Buyers who want built-in Alexa and Siri
Skip it if
- You want door and window alerts without a subscription
- You want a system outside the 95% compatibility range
The bundle pairs the Smart Thermostat Premium with a SmartSensor 2-pack for doors and windows, plus a radar occupancy sensor. Built-in Alexa and Siri answer voice commands, and the air quality monitor flags poor air and filter changes. The Power Extender Kit and trim kit are in the box for DIY install. It is ENERGY STAR certified and works with 95% of systems.
meross Smart Thermostats for Home
A Matter thermostat with app and voice control, 24/7 scheduling and smart alerts.
- Works with Alexa / Google
- Phone app control
- 3-year warranty stated
Good for
- Buyers who want Matter platform support
- Buyers who want 24/7 flexible scheduling
Skip it if
- You want a thermostat without a C-wire
- You want a warranty longer than 3 years
It integrates locally with Matter platforms including Apple Home, Alexa, Google Home, Home Assistant and SmartThings. The 24/7 flexible schedule customizes heating and cooling, and the app tracks HVAC usage. Smart alerts cover filter life, system malfunctions and long-term operation. It weighs 0.54 lb and carries a 3-year warranty.
How to choose
C-wire first
Three of these need a C-wire: the Honeywell, the Sensi and the meross, with the meross C-wire not included in the box. The ecobee includes a Power Extender Kit and trim kit in the box. Check your wiring before you buy, and match the box contents to your setup.
App, voice and Matter
All four work with Alexa. The Honeywell adds Google Assistant and Cortana with app control, the Sensi adds Apple HomeKit and SmartThings with app control, and the meross adds Matter support across Apple Home, Google Home, Home Assistant and SmartThings. The ecobee adds built-in Alexa and Siri, so you can speak to the thermostat itself. Pick the platform your home already uses.
Sensors, alerts and schedules
The ecobee bundle adds room sensing through its SmartSensor 2-pack and a radar occupancy sensor, plus an air quality monitor. The Sensi and meross send filter and system alerts, and the Honeywell shows indoor and outdoor readings on its screen. The Honeywell, Sensi and meross support flexible scheduling for heating and cooling. Match the extras to what you will check.
FAQ
Do these thermostats need a C-wire?
The Honeywell, Sensi and meross need a C-wire, and the meross C-wire is not included. The ecobee includes a Power Extender Kit in the box.
Which thermostats are ENERGY STAR certified?
The Honeywell, Sensi and ecobee carry ENERGY STAR certification for their smart thermostats.
Which thermostat works with Matter?
The meross works with Matter platforms including Apple Home, Alexa, Google Home, Home Assistant and SmartThings.
Do these thermostats work with electric baseboard heat?
The Honeywell does not work with electric baseboard heat, and the meross is not suitable for electric baseboard heaters.
