Best Smart Thermostats without C-Wires
Updated February 2026
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Best Smart Thermostats without C-Wires
2026 Buyer's GuideUpdated February 2026
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1
1
Sensi Smart Thermostat, 100 Years Of Expertise, Wi-Fi, Data Privacy, Programmable, Easy DIY Install, Works With Alexa, Energy S...
SENSI
Ease of installation
Functionality
Ease of use
Value for money
Cost effectiveness
App convenience
1
Sensi Smart Thermostat, 100 Years Of Expertise, Wi-Fi, Data Privacy, Programmable, Easy DIY Install, Works With Alexa, Energy S...
Ease of installation
Functionality
Ease of use
Value for money
Cost effectiveness
App convenience
2
2
ecobee Smart Thermostat Enhanced - Programmable Wifi Thermostat - Works with Siri, Alexa, Google Assistant - Energy Star Certif...
ECOBEE
Ease of use
Thermostat quality
Ease of installation
Money saving
Look
2
ecobee Smart Thermostat Enhanced - Programmable Wifi Thermostat - Works with Siri, Alexa, Google Assistant - Energy Star Certif...
Ease of use
Thermostat quality
Ease of installation
Money saving
Look
4
6
6
Honeywell Home RTH8800WF2022, T5 WiFi Smart Thermostat, 7 Day-Programmable Touchscreen, Alexa Ready, Geofencing Technology, Ene...
HONEYWELL
Ease of installation
Ease of use
Thermostat quality
Control mode
Value for money
6
Honeywell Home RTH8800WF2022, T5 WiFi Smart Thermostat, 7 Day-Programmable Touchscreen, Alexa Ready, Geofencing Technology, Ene...
Ease of installation
Ease of use
Thermostat quality
Control mode
Value for money
7
7
Honeywell Home RTH9585WF1004 Wi-Fi Smart Color Thermostat, 7 Day Programmable, Touch Screen, Energy Star, Alexa Ready, Gray
Functionality
Ease of installation
Thermostat quality
Ease of use
Wifi connectivity
7
Honeywell Home RTH9585WF1004 Wi-Fi Smart Color Thermostat, 7 Day Programmable, Touch Screen, Energy Star, Alexa Ready, Gray
Functionality
Ease of installation
Thermostat quality
Ease of use
Wifi connectivity
8
8
Amazon Smart Thermostat – Save money and energy - Works with Alexa and Ring - C-wire required
AMAZON
Ease of installation
Value for money
Ease of use
8
Amazon Smart Thermostat – Save money and energy - Works with Alexa and Ring - C-wire required
Ease of installation
Value for money
Ease of use
9
9
Sensi Lite Smart Thermostat, Data Privacy, Programmable, Wi-Fi, Easy DIY, Works With Alexa, Energy Star Certified, ST25, Most S...
Ease of installation
Functionality
Ease of use
Thermostat quality
Value for money
9
Sensi Lite Smart Thermostat, Data Privacy, Programmable, Wi-Fi, Easy DIY, Works With Alexa, Energy Star Certified, ST25, Most S...
Ease of installation
Functionality
Ease of use
Thermostat quality
Value for money
10
10
ecobee Smart Thermostat Essential - Energy Star Certified programmable Wi-Fi Thermostat - Works with Siri, Alexa, and Google As...
ECOBEE
Ease of installation
Thermostat quality
Ease of use
Control panel
Value for money
App ease
10
ecobee Smart Thermostat Essential - Energy Star Certified programmable Wi-Fi Thermostat - Works with Siri, Alexa, and Google As...
Ease of installation
Thermostat quality
Ease of use
Control panel
Value for money
App ease
Our Top Choice
1
1
Sensi Smart Thermostat, 100 Years Of Expertise, Wi-Fi, Data Privacy, Programmable, Easy DIY Install, Works With Alexa, Energy S...
SENSI
Ease of installation
Functionality
Ease of use
Value for money
Cost effectiveness
App convenience
1
Sensi Smart Thermostat, 100 Years Of Expertise, Wi-Fi, Data Privacy, Programmable, Easy DIY Install, Works With Alexa, Energy S...
Ease of installation
Functionality
Ease of use
Value for money
Cost effectiveness
App convenience
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