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Thermostats · Head to head

Ecobee Smart Thermostat Premium vs Sensi Touch 2 smart thermostat

Full Smart Thermostats comparison in 2026

Updated September 2026
Data from Amazon and official Ecobee and Sensi sites.
2026 verdict
Between two large-touchscreen smart thermostats, the Ecobee Smart Thermostat Premium is the fuller package, with a room sensor in the box, occupancy sensing, Apple HomeKit support and a built-in speaker.
Ecobee Smart Thermostat Premium
Winner
Ecobee Smart Thermostat Premium
$149.63$204.9727% OFF
Buy on Amazon USACheck price
The Sensi Touch 2 smart thermostat has a slightly bigger 4.3-inch screen, works with Google Home, Alexa, SmartThings and Home Assistant, and uses the same 3-year warranty, but it leaves out occupancy sensing, alerts and an included trim plate. Neither supports Matter. Pick the Ecobee Smart Thermostat Premium if you want multi-room balancing and richer sensing out of the box, and the Sensi Touch 2 smart thermostat for a simple, good-looking touchscreen upgrade where HomeKit and air quality data do not matter.
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FeatureEcobee Smart Thermostat PremiumSensi Touch 2 smart thermostatWinner
Price$149.63$189.52Ecobee Smart Thermostat Premium
Rating4.54.3Ecobee Smart Thermostat Premium
Included accessoriesTrim Plate, Temperature SensorNoneEcobee Smart Thermostat Premium
Connectivity2.4 GHz WiFi, 5 GHz WiFi, Bluetooth2.4 GHz WiFi, 5 GHz WiFiEcobee Smart Thermostat Premium
IntegrationsGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, External Temperature SensorsGoogle Home, Alexa, Samsung SmartThings, Home Assistant, External Temperature SensorsEcobee Smart Thermostat Premium
SensorsProximity / Motion, Occupancy, Temperature, Humidity, TVOC, CO₂Temperature, HumidityEcobee Smart Thermostat Premium
AlertsTemperature Alerts, Air Quality Alerts, Fire Alerts, Intrude AlertsNoneEcobee Smart Thermostat Premium
SpeakerYESNOEcobee Smart Thermostat Premium
Warranty3 years3 yearsTie
ScreenYESYESTie
Energy SavingsYESYESTie
System Health MonitorNONOTie

What the differences mean

Room sensing

The Ecobee Smart Thermostat Premium includes a remote temperature sensor and has proximity and occupancy sensing of its own, so it can favor the room in use. The Sensi Touch 2 smart thermostat supports external temperature sensors but does not include one and has no occupancy sensing, so balancing rooms means buying more hardware.

Apple Home

The Ecobee Smart Thermostat Premium supports Apple HomeKit. The Sensi Touch 2 smart thermostat does not, so an iPhone household that lives in the Home app will not see it there.

Air quality and alerts

The Ecobee Smart Thermostat Premium measures TVOC and CO2 and sends temperature and air quality alerts, with fire and intrusion alerts behind a subscription. The Sensi Touch 2 smart thermostat has none of these alerts, which is a real gap for buyers who want the thermostat to double as a monitor.

Screen and shape

The Sensi Touch 2 smart thermostat has a 4.3-inch color touchscreen in a wide 142 x 82 mm body and comes in several color options. The Ecobee Smart Thermostat Premium has a 4-inch square screen at 540 x 540 px in a 103.89 mm square body with no color choice, and it includes a trim plate for a finished look.

Connectivity

Both use dual-band Wi-Fi, but only the Ecobee Smart Thermostat Premium adds Bluetooth, which helps with setup and nearby control. Neither has Thread, Zigbee, Z-Wave or Matter.

Which one to buy if

What owners say

Owners of both thermostats like the same basics: a touchscreen that looks better than what it replaced, a wall install they could follow, and support for extra room sensors to balance temperatures. Ecobee Smart Thermostat Premium owners lean on the sensor already in the box, a screen that wakes as you walk up and talking to it through the built-in speaker, and their complaints are about wiring surprises in older homes, occasional app glitches and slower support replies. Sensi Touch 2 smart thermostat owners single out the step-by-step app install, praised even by first-timers and a small-business owner running several units, and their complaints are Wi-Fi dropping after a few months, trouble pairing an add-on sensor and missing advanced diagnostics that an experienced installer noticed.

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.

  • Ecobee Smart Thermostat Premium
  • Sensi Touch 2 smart thermostat

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Frequently Asked Questions

Which is better overall: Ecobee Smart Thermostat Premium or Sensi Touch 2 smart thermostat?

The Ecobee Smart Thermostat Premium. It includes a remote sensor, adds occupancy and air quality sensing, supports Apple HomeKit and has a built-in speaker. The Sensi Touch 2 smart thermostat is the simpler touchscreen option.

What is the biggest difference between the Ecobee Smart Thermostat Premium and the Sensi Touch 2 smart thermostat?

Sensing and alerts. The Ecobee Smart Thermostat Premium adds a remote sensor, occupancy detection, TVOC and CO2 readings and air quality alerts, while the Sensi Touch 2 smart thermostat sticks to temperature and humidity.

Does the Sensi Touch 2 smart thermostat work with Apple HomeKit like the Ecobee Smart Thermostat Premium?

No. The Sensi Touch 2 smart thermostat works with Google Home, Alexa, SmartThings and Home Assistant but not Apple HomeKit. The Ecobee Smart Thermostat Premium supports all of those plus HomeKit.

Do both thermostats support extra remote sensors?

Yes. The Ecobee Smart Thermostat Premium includes a sensor and can select which one to read by presence, and the Sensi Touch 2 smart thermostat supports external temperature sensors that you add yourself.

Who should buy the Ecobee Smart Thermostat Premium?

Homes with uneven temperatures, Apple Home users and anyone who wants occupancy sensing, air quality readings and a speaker built into the thermostat.

Who should buy the Sensi Touch 2 smart thermostat?

DIY installers who want a modern touchscreen with a guided app install, in a Google Home, Alexa or SmartThings home, and who do not need HomeKit or air quality alerts.

Full comparison table

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