Emerson Sensi WiFi ST55

Smart Thermostats

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CR Expert Take

How did it perform in our expert lab testing?

Overall Score

The Overall Score for this model is derived from our expert lab test results.

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Current Range of Tested Smart Thermostats

What goes into the Overall Score?

Smart IQ

/ 5

Manual operation

/ 5

Automation

/ 5

About

The Emerson Sensi WiFi ST55 is part of the Thermostats test program at Consumer Reports. In our lab tests, Smart Thermostats models like the Sensi WiFi ST55 are rated on multiple criteria, such as those listed below.

Smart IQ: An evaluation based on the smart features and functions associated with thermostats. Considers things like messaging, reporting, features controlled remotely via a mobile device, occupancy sensing and learning.

Manual operation: The ease of manually controlling the thermostat's temperature set-point, heating/cooling schedule, home/away and vacation features - when they are available - through the thermostat and mobile app.

Automation: The ability for a thermostat to operate without input from the user.

Features & Specs

Features

Schedule programming

App only

Events per day

Home/away access

None

Vacation schedule setup

None

Early recovery

Learns behavior

Touch screen

Voice command

Yes

Password protection

Yes

Temperature set-point access

App and Thermostat

Specs

Power source

24 VAC source

C wire required

Required

Two wire compatible

Power sharing

Wireless technology

Yes

Has geofencing

Yes

Occupancy sensor

Warranty (yrs.)

Price & Shop

Emerson Sensi WiFi ST55

CR Expert Take

Overall Score

What goes into the Overall Score?

About

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