Smart Thermostats
Best Programmable Thermostat with WiFi (2026): 5 Models Side by Side
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The ecobee, the Best Overall pick, leads this group with WiFi, a built-in speaker with Siri and Alexa, a SmartSensor for hot or cold spots, and a Power Extender Kit for homes without a C-wire. It also has an air quality monitor with alerts, app control and a 3-year warranty.
Starting out? See the main guide: Best Smart Thermostat
Top picks at a glance
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Best Overallecobee Smart Thermostat Premium9.8 View on Amazon -
Runner-UpGoogle Nest Learning Thermostat9.7 View on Amazon -
Also GreatAmazon Smart Thermostat9.7 View on Amazon -
9.4 View on Amazon -
Also Greatmeross Matter Smart Thermostat for Home9.2 View on Amazon
Compare the specs
Ranked on works without a c-wire, 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 | Works without a C-wire | Room sensor support | Works with Alexa / Google | ENERGY STAR | Phone app control | Weight | Warranty |
|---|---|---|---|---|---|---|---|
| 1. ecobee Smart Thermostat Premium | — | Yes | Yes | Yes | Yes | 1.3 lb | 3-year |
| 2. Google Nest Learning Thermostat | Yes | Yes | Yes | — | Yes | 0.36 lb | — |
| 3. Amazon Smart Thermostat | — | — | Yes | — | Yes | — | — |
| 4. Honeywell Home T5 Smart Wi-Fi Thermostat RTH8800WF2022 | — | — | Yes | Yes | — | 0.2 lb | 2-year |
| 5. meross Matter Smart Thermostat for Home | — | — | Yes | — | Yes | — | 3-year |
ecobee Smart Thermostat Premium
It pairs WiFi with a built-in speaker, a SmartSensor, a Power Extender Kit and a 3-year warranty.
- Room sensor support
- Works with Alexa / Google
- ENERGY STAR
- Phone app control
- 3-year warranty stated
Good for
- Buyers who want a room sensor with a built-in speaker
- People who want a Power Extender Kit for homes without a C-wire
Skip it if
- You want a warranty longer than 3 years
- You want a thermostat under 1.3 lb
It weighs 1.3 lb and is ENERGY STAR certified, with a radar occupancy sensor that preheats or precools before you arrive. The SmartSensor detects which rooms you use and adjusts temperature there. It has an air quality monitor with alerts and filter reminders, and the ecobee app controls settings from anywhere.
Google Nest Learning Thermostat
It pairs WiFi with Google Home app control, a Nest Temperature Sensor and operation without a C-wire.
- Works without a C-wire
- Room sensor support
- Works with Alexa / Google
- Phone app control
Good for
- Buyers who want a learning thermostat with a temperature sensor
- People who want Google Home app control from a phone
Skip it if
- You want a thermostat under 0.36 lb
- You want a thermostat that requires a C-wire
It weighs 0.36 lb and works with Alexa, Siri and Google Assistant through a smart speaker, with Matter compatibility. It learns how outside temperature affects inside temperature and pauses the system to help save energy. The Nest Temperature Sensor lets you set the temperature for a room at a certain time of day.
Amazon Smart Thermostat
It pairs Alexa control with Alexa+ routines, home, away and sleep schedules, and a C-wire requirement.
- Works with Alexa / Google
- Phone app control
Good for
- Buyers who want Alexa routines across devices
- People who want app control for away-from-home checks
Skip it if
- You want a single thermostat instead of a pack of 2
- You want a thermostat that works without a C-wire
It creates home, away and sleep schedules, or lets Alexa automatically control temperature with Alexa+ features. The Alexa app guides installation and shows temperature from anywhere. It uses Honeywell Home Thermostat Technology and connects to select Alexa devices for temperature readings or presence detection.
Honeywell Home T5 Smart Wi-Fi Thermostat RTH8800WF2022
It pairs Alexa readiness with 7-day scheduling, geofencing and a 2-year warranty.
- Works with Alexa / Google
- ENERGY STAR
- 2-year warranty stated
Good for
- Buyers who want 7-day scheduling with geofencing
- People who want monthly energy reports
Skip it if
- You want a thermostat that works without a C-wire
- You want a warranty longer than 2 years
It weighs 0.2 lb and carries a 2-year limited warranty, with a touchscreen and ENERGY STAR certification. It runs 7-day flexible scheduling or location based temperature control, with auto home and away mode. Monthly energy reports track heating and cooling with tips for lower use.
meross Matter Smart Thermostat for Home
It pairs WiFi and Matter with a 24/7 flexible schedule, app control and a 3-year warranty.
- Works with Alexa / Google
- Phone app control
- 3-year warranty stated
Good for
- Buyers who want Matter integration with Alexa, Apple Home and Google
- People who want a 24/7 flexible schedule in an app
Skip it if
- You want a thermostat that works without a C-wire
- You want a warranty longer than 3 years
It carries a 3-year warranty and works with Alexa, Apple Home, Google Assistant and Samsung SmartThings through Matter. The 24/7 flexible schedule plans heating and cooling for home, away or asleep, and the meross app tracks HVAC usage. It gives smart alerts for filter life and system malfunctions.
How to choose
C-wire decides fit
A C-wire powers the thermostat, and some models need one while others work without one. The ecobee includes a Power Extender Kit for homes without a C-wire, and the Nest works without a C-wire. The Amazon Smart Thermostat, the Honeywell T5 and the meross require a C-wire.
Voice control and apps
Every pick here works with Alexa, so voice control is common ground rather than a separator. The ecobee has a built-in speaker with Siri or Alexa, the Nest works through the Google Home app and voice with Alexa, Siri or Google Assistant, and the Amazon model uses the Alexa app with Alexa+ routines. The meross uses the meross app with Matter, while the Honeywell T5 has a touchscreen with geofencing.
Schedules and sensors
Schedules hold a temperature plan, while sensors adjust it to where you are. The ecobee uses a SmartSensor and a radar occupancy sensor, and the Nest uses a Nest Temperature Sensor with learning. The Amazon model runs home, away and sleep schedules, the Honeywell T5 runs 7-day scheduling with geofencing, and the meross runs a 24/7 flexible schedule.
FAQ
Do I need a C-wire?
The ecobee includes a Power Extender Kit for homes without a C-wire, and the Nest works without a C-wire. The Amazon Smart Thermostat, the Honeywell T5 and the meross require a C-wire.
Which thermostats have a room sensor?
The ecobee includes a SmartSensor that detects which rooms you use and adjusts temperature there. The Nest includes a Nest Temperature Sensor for setting a room temperature at a certain time of day.
Which thermostats work with Alexa?
All five work with Alexa. The ecobee adds a built-in speaker with Siri and Alexa, the Nest works with Alexa, Siri and Google Assistant, and the meross works with Alexa, Apple Home and Google Assistant through Matter.
What warranties do these thermostats carry?
The ecobee carries a 3-year warranty, the Honeywell T5 carries a 2-year warranty, and the meross carries a 3-year warranty.
