The Sensi Color Touch.
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Sensi Touch Wi-Fi
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Awards Best Buy Award Editors' Choice Award Best Buy Award  Editors' Choice Award 
Price $170 List
$132.81 at Amazon
$249 List
$235.98 at Amazon
$169 List$250 List
$119.99 at Amazon
$250 List
$249.00 at Amazon
Overall Score Sort Icon
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Pros Fantastic mobile app, a breeze to installSleek, easy to install, accurateVery accurate, subdued design, very easy to set upStylish, accurateIntegrated Alexa voice assistant, easy to install
Cons Still not the easiest to useExpensive, support just refers you to a Nest ProLimited color options, display is harder to readVery expensive, seemed a little buggy to usLackluster performance in our accuracy tests, could be more intuitive to use
Bottom Line Building on the success of the prior model, the Sensi Touch Wi-Fi improves on ease of use and has an overall more refined lookThe best of the best, may not be appropriate for all homesThis smart wifi thermostat is a great value, pairing excellent performance with a much more palatable priceThis is a solid smart thermostat but is a bit pricey and couldn’t quite topple the top productsThis product is a great option for anyone who regularly makes use of smart home voice assistants
Rating Categories Sensi Touch Wi-Fi Nest Learning... Nest Thermostat E Johnson Controls... SmartThermostat...
Ease Of Use (40%)
5
7
6
6
6
Install & Support (30%)
7
8
8
7
8
Remote Access (20%)
7
6
6
6
6
Accuracy (10%)
7
9
9
8
5
Specs Sensi Touch Wi-Fi Nest Learning... Nest Thermostat E Johnson Controls... SmartThermostat...
Colors Black Stainless Steel, Copper, White, Black, Mirror Black, Brass, Polished Steel Frosted White Transparent screen with silver base Black
Battery Backup No Built-in, rechargeable lithium-ion battery Built-in, rechargeable lithium-ion battery No No
Learning/ Adaptive Controls No Yes - "Nest Sense" Yes - "Nest Sense" No Yes - adaptive
Dimensions Height: 3.4 in
Width: 5.625 in
Depth: 1.17 in
Diameter: 3.3 in
Depth: 1.21 in
Diameter: 3.1 in
Depth: 1.14 in
Height: 5 in
Width: 5.5 in
Depth: 1 in
Height: 4.29 in
Width: 4.29 in
Depth: 1.00 in
Works Directly with Alexa/Amazon Echo Yes; and Wink Yes Yes Yes; Also built-in Cortana Built-in
Works with Apple HomeKit Yes No No No Yes
Model # ST75 T3007ES T4000ES SIO2-10000 SmartThermostat with voice control
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