Amazon
Amazon Smart Thermostat
$59.99Cheaper
Released 2021
Best Smart Thermostats · head-to-head
Amazon Smart Thermostat vs Sensi Touch 2 Smart Thermostat
A sourced, side-by-side comparison. Amazon Smart Thermostat is cheaper at $59.99. Every spec and price links to its source.
Emerson Sensi
Sensi Touch 2 Smart Thermostat
$209.99
Released 2023
Which is better: the Amazon Smart Thermostat or Sensi Touch 2 Smart Thermostat?
On the specs we track, they're closely matched. The Amazon Smart Thermostat is the cheaper at $59.99.
As an Amazon Associate we earn from qualifying purchases. Prices verified at capture; live price may differ.
Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | Amazon Smart Thermostat | Sensi Touch 2 Smart Thermostat |
|---|---|---|
| US price | $59.99 | $209.99 |
| Brand | Amazon | Emerson Sensi |
| Released | 2021 | 2023 |
| Display | Basic segmented LED/LCD display; no color touchscreen | Color touchscreen (size not specified on product page); Sensi app control available |
| Sensors included | Temperature plus indoor humidity sensor (humidity reported in Alexa app, not shown on the on-unit display); no occupancy sensor, no remote sensor support | Built-in temperature; compatible with Sensi Room Sensors and Outdoor Sensors (sold separately) for temperature and humidity monitoring |
| Geofencing | Yes | Yes |
| Hvac compatibility | Low-voltage 24V systems (forced air gas/oil/electric, heat pumps); single-stage systems; does not support ACC-/ACC+ terminals, dual-band Wi-Fi only on 2.4 GHz | Universal: single-stage 1H/1C, multi-stage 2H/2C, heat pump 4H/2C; 24V low-voltage systems |
| C wire required | No | No |
| Voice assistants | Amazon Alexa only (requires separate Echo device) | Amazon Alexa, Google Assistant, Samsung SmartThings (no Apple HomeKit) |
| Energy reports | Yes | Yes |
| Release | 2021 | 2023 |
Sources — Amazon Smart Thermostat: safewise.com (verified 2026-06-15). Sensi Touch 2 Smart Thermostat: sensi.copeland.com (verified 2026-06-15).
What's the difference between the Amazon Smart Thermostat and Sensi Touch 2 Smart Thermostat?
Where the two actually differ on the specs we track (4 of 7). Matching specs are omitted.
- Display: Amazon Smart Thermostat Basic segmented LED/LCD display; no color touchscreen vs Sensi Touch 2 Smart Thermostat Color touchscreen (size not specified on product page); Sensi app control available
- Sensors included: Amazon Smart Thermostat Temperature plus indoor humidity sensor (humidity reported in Alexa app, not shown on the on-unit display); no occupancy sensor, no remote sensor support vs Sensi Touch 2 Smart Thermostat Built-in temperature; compatible with Sensi Room Sensors and Outdoor Sensors (sold separately) for temperature and humidity monitoring
- Hvac compatibility: Amazon Smart Thermostat Low-voltage 24V systems (forced air gas/oil/electric, heat pumps); single-stage systems; does not support ACC-/ACC+ terminals, dual-band Wi-Fi only on 2.4 GHz vs Sensi Touch 2 Smart Thermostat Universal: single-stage 1H/1C, multi-stage 2H/2C, heat pump 4H/2C; 24V low-voltage systems
- Voice assistants: Amazon Smart Thermostat Amazon Alexa only (requires separate Echo device) vs Sensi Touch 2 Smart Thermostat Amazon Alexa, Google Assistant, Samsung SmartThings (no Apple HomeKit)
What reviewers say
Sourced tester consensus for each — the "what people who used it think" layer, not just specs.
Amazon Smart Thermostat
Three whitelisted outlets reviewed the ~$60 Amazon Smart Thermostat in 2021-2022 and all rate it the best-value smart thermostat. Tom's Guide and Reviewed/USA Today are hands-on reviews (Reviewed wired it to a test rig); TechRadar is a 'should I buy' buying-advice piece with no hands-on testing. None report any lab-measured numbers (all measured arrays empty). The one universal caveat is that the thermostat is Alexa-only. All nine quotes were verified as literal substrings of the fetched pages. (3 sourced reviews, 2 lab-tested.)
Praised: Outstanding value at ~$60, undercutting Nest and Ecobee; Clean, minimalist design; includes a faceplate in the box; Intuitive Alexa Hunches automation for energy savings.
Flagged: Works only with Alexa — no Google Home or Apple HomeKit; No support for remote temperature sensors; Requires a C-wire (adapter needed for older homes).
Sensi Touch 2 Smart Thermostat
Three whitelisted testers (TechHive, Pro Tool Reviews, Reviewed) rate the Sensi Touch 2 among the best simple smart thermostats, praising its responsive touchscreen, easy app-guided installation (Pro Tool Reviews clocked ~10 minutes), and support for remote room sensors that average temperatures across the home. All three note it requires a C-wire. Reviewed lab-tested it on a simulated HVAC system with a NIST-calibrated thermometer but published no accuracy figure; its main criticism is the lack of machine learning at a premium price. (3 sourced reviews, 2 lab-tested.)
Praised: Intuitive, responsive touchscreen and easy-to-use app/interface; Fast, DIY-friendly installation guided by the app; Supports remote room sensors for whole-home temperature averaging.
Flagged: C-wire required; Remote room sensors not included (~$40 each); No Apple HomeKit support.