# Amazon Smart Thermostat vs GE Cync Smart Thermostat: specs and price compared

A sourced, side-by-side comparison of the Amazon Smart Thermostat (Amazon) and GE Cync Smart Thermostat (GE Cync) among smart thermostats. Amazon Smart Thermostat is the cheaper of the two at $59.99.

## Side by side

| Spec | Amazon Smart Thermostat | GE Cync Smart Thermostat |
| --- | --- | --- |
| US price | $59.99 | $119.99 |
| Brand | Amazon | GE Cync |
| Released | 2021 | — |
| Display | Basic segmented LED/LCD display; no color touchscreen | Backlit LCD display (always on); button and app control (Control Type: Buttons and App) |
| 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 | No remote sensor included (package contains 1 thermostat); Cync Room Temperature Sensors sold separately |
| Geofencing | 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 | Most residential 24V heating and cooling systems; designed for C-wire systems, Power Extender Kit (PEK) included for homes without a C-wire; 3- and 4-wire installation options |
| C wire required | No | No |
| Voice assistants | Amazon Alexa only (requires separate Echo device) | Amazon Alexa, Google Assistant (Google Home) |
| Energy reports | Yes | Yes |

## Key differences

- Display: Amazon Smart Thermostat Basic segmented LED/LCD display; no color touchscreen vs GE Cync Smart Thermostat Backlit LCD display (always on); button and app control (Control Type: Buttons and App)
- 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 GE Cync Smart Thermostat No remote sensor included (package contains 1 thermostat); Cync Room Temperature Sensors sold separately
- 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 GE Cync Smart Thermostat Most residential 24V heating and cooling systems; designed for C-wire systems, Power Extender Kit (PEK) included for homes without a C-wire; 3- and 4-wire installation options
- Voice assistants: Amazon Smart Thermostat Amazon Alexa only (requires separate Echo device) vs GE Cync Smart Thermostat Amazon Alexa, Google Assistant (Google Home)

## What reviewers say

**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.)

## Sources

- Amazon Smart Thermostat: https://www.safewise.com/blog/best-smart-thermostats/ (safewise.com, verified 2026-06-15)
- GE Cync Smart Thermostat: https://www.gelighting.com/led-lights/bulbs/ge-cync-smart-thermostat-energy-star-certified-programmable-wifi-thermostat-works (gelighting.com, verified 2026-07-10)

Canonical: https://frontdeskreview.com/gear/smart-thermostats/amazon-smart-thermostat-vs-ge-cync-smart-thermostat/
Cite: Per The Front Desk Review, Amazon Smart Thermostat ($59.99) vs GE Cync Smart Thermostat ($119.99) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/smart-thermostats/amazon-smart-thermostat-vs-ge-cync-smart-thermostat/
License: CC BY 4.0.