Updated October 2026
Data from Amazon and official Sensi site.
2026 verdict
If the wall can take a touchscreen, the Sensi Touch 2 smart thermostat is the better buy of these two Sensi models, since it adds 5 GHz Wi-Fi and room sensor support that the Sensi Smart thermostat lacks.
It also brings a 4.3-inch color touchscreen and a slimmer body in several color options. The Sensi Smart thermostat is the older, plainer design, with a larger 5-inch monochrome display and physical buttons that some owners prefer to a touchscreen. Both share a 3-year warranty, humidity sensing and Google Home, Alexa, SmartThings and Home Assistant support, and neither offers Apple HomeKit or Matter. Choose the Sensi Touch 2 smart thermostat for a modern screen and room balancing, and the Sensi Smart thermostat for a button-driven display.
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| Feature | Sensi Smart thermostat | Sensi Touch 2 smart thermostat | Winner |
|---|---|---|---|
| Price | $99.99 | $186.99 | Sensi Smart thermostat |
| Rating | 4.4 | 4.3 | Sensi Smart thermostat |
| Connectivity | 2.4 GHz WiFi | 2.4 GHz WiFi, 5 GHz WiFi | Sensi Touch 2 smart thermostat |
| Integrations | Google Home, Alexa, Samsung SmartThings, Home Assistant | Google Home, Alexa, Samsung SmartThings, Home Assistant, External Temperature Sensors | Sensi Touch 2 smart thermostat |
| Warranty | 3 years | 3 years | Tie |
| Screen | YES | YES | Tie |
| Sensors | Temperature, Humidity | Temperature, Humidity | Tie |
| Energy Savings | YES | YES | Tie |
| System Health Monitor | NO | NO | Tie |
| Voice Control | YES | YES | Tie |
| Speaker | NO | NO | Tie |
What the differences mean
Screen and input
The Sensi Touch 2 smart thermostat has a 4.3-inch color touchscreen. The Sensi Smart thermostat has a 5-inch monochrome LED display with physical buttons, which is the larger of the two screens but has no touch input or color.
Room sensors
The Sensi Touch 2 smart thermostat supports external temperature sensors and lets you choose which ones join the average, for balancing rooms. The Sensi Smart thermostat does not support them, so it reads only the wall it is mounted on.
Wi-Fi
The Sensi Touch 2 smart thermostat joins 2.4 GHz and 5 GHz networks. The Sensi Smart thermostat is 2.4 GHz only, which can make pairing fiddly on a router that merges its bands.
Size and looks
The Sensi Touch 2 smart thermostat is slimmer at 20 mm deep and comes in several color options. The Sensi Smart thermostat is a larger 150 x 95 x 25 mm body in a single color, and it is the older design of the two.
Which one to buy if
- you would rather press buttons than tap a screen
The Sensi Smart thermostat has physical buttons and a large, readable display.
- a bedroom or an office needs its own temperature reading
The Sensi Touch 2 smart thermostat supports external temperature sensors and the Sensi Smart thermostat does not.
- your router merges 2.4 and 5 GHz into one network
The Sensi Touch 2 smart thermostat handles both bands, whereas the Sensi Smart thermostat is 2.4 GHz only.
- you want a slim, modern touchscreen on the wall
The Sensi Touch 2 smart thermostat is a thinner glass touchscreen in several color options.
23% OFF
$99.99
$129.99
- + Price: $99.99
- + Rating: 4.4
- - Connectivity: 2.4 GHz WiFi vs 2.4 GHz WiFi, 5 GHz WiFi
- - Integrations: Google Home, Alexa, Samsung SmartThings, Home Assistant vs Google Home, Alexa, Samsung SmartThings, Home Assistant, External Temperature Sensors
Winner
$186.99
- + Connectivity: 2.4 GHz WiFi, 5 GHz WiFi
- + Integrations: Google Home, Alexa, Samsung SmartThings, Home Assistant, External Temperature Sensors
- - Price: $186.99 vs $99.99
- - Rating: 4.3 vs 4.4
What owners say
Owners of both Sensi thermostats tell the same installation story: the app identifies the wiring step by step, so a self-install takes minutes, and both groups mention some units dropping off Wi-Fi. Sensi Smart thermostat owners single out physical buttons, geofencing, fan circulation settings and the HVAC runtime reports in the app, while complaints include battery drain without a common wire, whole-degree steps in Celsius and an app that only accepts US and Canadian addresses. Sensi Touch 2 smart thermostat owners single out the glass touchscreen that looks premium next to older models, and using extra sensors to balance rooms, while some report trouble pairing an add-on sensor and an experienced installer missed advanced diagnostics.
Price history compared
Every price change of both, in the same store, so the gap between the two lines is what one costs more than the other.
- Sensi Smart thermostat
- Sensi Touch 2 smart thermostat
Loading price history...
Frequently Asked Questions
Which is better overall: Sensi Smart thermostat or Sensi Touch 2 smart thermostat?
The Sensi Touch 2 smart thermostat, for its 5 GHz Wi-Fi, room sensor support, color touchscreen and slimmer body. The Sensi Smart thermostat is the choice if you want a large display with physical buttons.
What is the difference between the Sensi Smart thermostat and the Sensi Touch 2 smart thermostat?
Interface and connectivity. The Sensi Touch 2 smart thermostat adds a 4.3-inch color touchscreen, 5 GHz Wi-Fi and external sensor support, while the Sensi Smart thermostat uses a 5-inch monochrome display with buttons.
Do the Sensi Smart thermostat and the Sensi Touch 2 smart thermostat work with Apple HomeKit?
Neither does. Both work with Google Home, Alexa, SmartThings and Home Assistant, and neither supports HomeKit or Matter.
Can the Sensi Smart thermostat use external temperature sensors like the Sensi Touch 2 smart thermostat?
No. Only the Sensi Touch 2 smart thermostat supports external temperature sensors, and it lets you choose which ones count. The Sensi Smart thermostat relies on its own temperature and humidity sensing.
Who should buy the Sensi Smart thermostat?
Homeowners who want a no-frills DIY smart thermostat with a big display and physical buttons, and who do not need a touchscreen or room sensors.
Who should buy the Sensi Touch 2 smart thermostat?
Buyers who want a modern glass touchscreen, dual-band Wi-Fi and the option to add remote temperature sensors.
Full comparison table
Compare all 23 Thermostats side by side
You are looking at two of them. The full table lines up all Thermostats in the catalog with the same specs, so you can filter by what you need and sort by price or rating.
- 23 Thermostats
- 51 specs compared
- 47 filters
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Unavailable