Nest Temperature Sensor vs Sensi Emerson Room Sensor

The Sensi Emerson Room Sensor comes out ahead thanks to a 3-year warranty, added humidity sensing and broader connectivity. The Nest Temperature Sensor is the more affordable, higher-rated option, but it reads temperature only and ties to the Nest ecosystem.

The Sensi measures both temperature and humidity and pairs with a Sensi Touch 2 thermostat, while the Nest reads temperature only and pairs with a Nest Thermostat. Each is locked to its own brand's thermostat and neither has a screen.

Only the Sensi Emerson Room Sensor senses humidity in addition to temperature. The Nest Temperature Sensor tracks temperature alone.

The Sensi Emerson Room Sensor has the longer warranty at 3 years, while the Nest Temperature Sensor is the more affordable option and carries a higher owner rating.

Owners of a Sensi Touch 2 thermostat who want to balance comfort across rooms with both temperature and humidity readings and value a long 3-year warranty.

Nest Thermostat owners who want an affordable, well-reviewed way to fix a room that runs too hot or cold, and who only need temperature (not humidity) readings.