Smart Thermostats
Best Smart Electric Thermostat (2026): Top 4 by the Specs
As an Amazon Associate we earn from qualifying purchases. Specs below come from each product's Amazon listing; we do not test products in person.
For a smart electric thermostat, the Honeywell Lyric T6 Pro leads this list: a Wi-Fi programmable model for up to 2 heat and 1 cool heat pump stages with app control. The Alarm.com adds remote access, custom schedules and temperature alerts, while the XuLuaba adds 7-day and 5-1-1 day scheduling with app control.
Starting out? See the main guide: Best Smart Thermostat
Top picks at a glance
-
9.8 View on Amazon -
Runner-UpAlarm.com Smart Thermostat9.4 View on Amazon -
9.3 View on Amazon -
Also GreatSereneLife Smart Space Heater9.2 View on Amazon
Compare the specs
Ranked on works with alexa / google, 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 with Alexa / Google | Phone app control | Weight | Warranty |
|---|---|---|---|---|
| 1. Honeywell TH6220WF2006/U Lyric T6 Pro Wi-Fi Programmable | Yes | — | — | — |
| 2. Alarm.com Smart Thermostat | Yes | Yes | — | — |
| 3. XuLuaba Smart WiFi Thermostat for Home with App | Yes | Yes | — | — |
| 4. SereneLife Smart Space Heater | — | Yes | — | — |
Honeywell TH6220WF2006/U Lyric T6 Pro Wi-Fi Programmable
A Wi-Fi programmable thermostat for up to 2 heat and 1 cool heat pump stages with app control.
- Works with Alexa / Google
Good for
- Buyers who want a Wi-Fi programmable thermostat
- Buyers who want app control with Alexa and HomeKit
Skip it if
- You want heat pump stages past 2 heat and 1 cool
- You want a conventional system past 2 heat and 2 cool
It works with Alexa and Google, plus Apple HomeKit, and the app controls it. It handles up to 2 heat and 1 cool stages on a heat pump, or 2 heat and 2 cool stages on a conventional system. It mounts on the wall, runs on 2 AA batteries and has a clock display.
Alarm.com Smart Thermostat
A Wi-Fi thermostat with app and voice control, remote access and custom schedules.
- Works with Alexa / Google
- Phone app control
Good for
- Buyers who want remote access and custom schedules
- Buyers who want temperature alerts
Skip it if
- You want more than 2 AA batteries
- You want more than one temperature sensor
It gives remote access with custom schedules, critical temperature alerts and geo-services automation. App and voice control work over Wi-Fi, with Alexa and Vera as controllers. It runs on 2 AA batteries, mounts on the wall and includes a temperature sensor.
XuLuaba Smart WiFi Thermostat for Home with App
A Wi-Fi thermostat with app control and 7-day, 5-1-1 day and non-programmable modes.
- Works with Alexa / Google
- Phone app control
Good for
- Buyers who want 7-day and 5-1-1 day scheduling
- Buyers who want app control with Alexa and Google
Skip it if
- You want a thermostat for multi-stage systems
- You want a thermostat for heat pumps with Aux heat
It controls from the Smart Life App and works with Alexa and Google Home. Scheduling runs in 7-day, 5-1-1 day or non-programmable modes, and a C-wire is required to power it. It installs in 30 minutes with step-by-step instructions.
SereneLife Smart Space Heater
A 1500W space heater with a thermostat, Wi-Fi app control, a remote and 3 heating modes.
- Phone app control
Good for
- Buyers who want a 1500W heater with a thermostat
- Buyers who want Wi-Fi app control and a remote
Skip it if
- You want more than 1500 watts
- You want a timer longer than 12 hours
It heats with a 1500W PTC ceramic element and a thermostat, with 3 heating modes: Power Heat, ECO and Fan Only. Wi-Fi app control and a remote set the temperature from 41 to 95 degrees and a 12-hour timer. It has overheat protection, tip-over protection and a control lock, plus a carry handle.
How to choose
Match the system type
System fit comes first. The Honeywell handles up to 2 heat and 1 cool heat pump stages, or 2 heat and 2 cool conventional stages. The XuLuaba suits gas, oil, electric and heat pump systems without Aux or emergency heat, but not multi-stage or millivolt systems. Check your system type before you buy.
App and voice control
The Alarm.com, XuLuaba and SereneLife work with an app: the Alarm.com and XuLuaba use app control, and the SereneLife adds Wi-Fi app control with a remote. The Honeywell works with Alexa, Google and Apple HomeKit, the Alarm.com works with Alexa and Vera, and the XuLuaba works with Alexa and Google Home. Pick the voice platforms already in your home.
Power and scheduling
Power differs across this list. The Honeywell and the Alarm.com use 2 AA batteries, and the XuLuaba needs a C-wire connection. For scheduling, the Alarm.com gives custom schedules and the XuLuaba gives 7-day and 5-1-1 day modes, while the SereneLife gives a 12-hour timer and 3 heating modes.
FAQ
Which thermostats work with Alexa and Google?
The Honeywell, Alarm.com and XuLuaba work with Alexa and Google, and the Honeywell also works with Apple HomeKit.
Which models need a C-wire?
The XuLuaba needs a C-wire connection to power it, while the Honeywell and Alarm.com use 2 AA batteries.
Is the SereneLife a thermostat?
No, it is a 1500W space heater with a thermostat, Wi-Fi app control, a remote and 3 heating modes.
What scheduling options do these models have?
The Honeywell is programmable, and the XuLuaba gives 7-day and 5-1-1 day modes.
