# ecobee Smart Thermostat Premium vs GE Cync Smart Thermostat: specs and price compared

A sourced, side-by-side comparison of the ecobee Smart Thermostat Premium (ecobee) and GE Cync Smart Thermostat (GE Cync) among smart thermostats. GE Cync Smart Thermostat is the cheaper of the two at $119.99.

## Side by side

| Spec | ecobee Smart Thermostat Premium | GE Cync Smart Thermostat |
| --- | --- | --- |
| US price | $259.99 | $119.99 |
| Brand | ecobee | GE Cync |
| Released | 2022 | — |
| Display | 4-inch full-color LCD touchscreen, 540x540 pixels | Backlit LCD display (always on); button and app control (Control Type: Buttons and App) |
| Sensors included | Built-in temperature, humidity, occupancy (radar), proximity; includes one SmartSensor (temperature + occupancy) in box; up to 20 additional sensors supported | No remote sensor included (package contains 1 thermostat); Cync Room Temperature Sensors sold separately |
| Geofencing | Yes | — |
| Hvac compatibility | Most 24VAC systems: conventional 2H/2C, heat pumps 2H/2C + 2 stage AUX, boilers, PTACs, fan coil units (up to 3 fan speeds); Power Extender Kit included | 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 (built-in), Apple Siri (via HomePod/HomePod mini), Google Assistant, Samsung SmartThings, IFTTT | Amazon Alexa, Google Assistant (Google Home) |
| Energy reports | Yes | Yes |

## Key differences

- Display: ecobee Smart Thermostat Premium 4-inch full-color LCD touchscreen, 540x540 pixels vs GE Cync Smart Thermostat Backlit LCD display (always on); button and app control (Control Type: Buttons and App)
- Sensors included: ecobee Smart Thermostat Premium Built-in temperature, humidity, occupancy (radar), proximity; includes one SmartSensor (temperature + occupancy) in box; up to 20 additional sensors supported vs GE Cync Smart Thermostat No remote sensor included (package contains 1 thermostat); Cync Room Temperature Sensors sold separately
- Hvac compatibility: ecobee Smart Thermostat Premium Most 24VAC systems: conventional 2H/2C, heat pumps 2H/2C + 2 stage AUX, boilers, PTACs, fan coil units (up to 3 fan speeds); Power Extender Kit included 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: ecobee Smart Thermostat Premium Amazon Alexa (built-in), Apple Siri (via HomePod/HomePod mini), Google Assistant, Samsung SmartThings, IFTTT vs GE Cync Smart Thermostat Amazon Alexa, Google Assistant (Google Home)

## What reviewers say

**ecobee Smart Thermostat Premium** — Three whitelisted testers (Tom's Guide, TechHive, Reviewed) rate the Ecobee Smart Thermostat Premium a top-tier smart thermostat. Reviewed lab-tested temperature accuracy against a NIST-certified thermometer; Tom's Guide and TechHive evaluated it hands-on qualitatively. All praise the premium redesign, easy app-guided install, broad smart-home compatibility, and the included occupancy-sensing SmartSensor. Shared gripes: a weak built-in speaker, a limited air-quality sensor, and a high price. (3 sourced reviews.)

## Sources

- ecobee Smart Thermostat Premium: https://www.ecobee.com/en-us/smart-thermostats/smart-thermostat-premium/ (ecobee.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/ecobee-smart-thermostat-premium-vs-ge-cync-smart-thermostat/
Cite: Per The Front Desk Review, ecobee Smart Thermostat Premium ($259.99) vs GE Cync Smart Thermostat ($119.99) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/smart-thermostats/ecobee-smart-thermostat-premium-vs-ge-cync-smart-thermostat/
License: CC BY 4.0.