Nest Temperature Sensor vs X-Sense STH0B Smart Thermometer Hygrometer

The X-Sense STH0B Smart Thermometer Hygrometer on capability, since it measures temperature and humidity, logs history and sends alerts. But it needs an X-Sense base station. The Nest Temperature Sensor is the better fit only for an existing Nest thermostat, where its single job is balancing rooms.

The X-Sense STH0B Smart Thermometer Hygrometer is a full temperature and humidity probe that reports through its own base station, while the Nest Temperature Sensor only feeds a temperature reading to a Nest thermostat. One is a standalone sensor system, the other a closed accessory.

No. It has no Wi-Fi of its own and reports over a proprietary 868 MHz radio, so an X-Sense SBS50 base station is required to receive the readings and pass them to the app.

No. The Nest Temperature Sensor measures temperature only, and it has no screen, alerts, automations or history of its own. For humidity, the X-Sense STH0B Smart Thermometer Hygrometer is the one of the pair that reads it.

Support varies by region. Several owners in the UK, Italy and the Netherlands report the Nest Temperature Sensor failing to activate because their thermostat's software region was not supported, so confirm compatibility with the local Nest model first.

Buy the X-Sense STH0B Smart Thermometer Hygrometer to add temperature, humidity, dew point and alerts to an existing X-Sense system. Buy the Nest Temperature Sensor only to correct a hot or cold room on a Nest thermostat.