Nest Temperature Sensor (2nd gen) vs Sonoff SNZB-02M AirGuard TH Pressure Sensor

The Sonoff SNZB-02M AirGuard TH Pressure Sensor, unless you are only correcting a Nest thermostat. It reads humidity and barometric pressure, alerts, automates and logs history on Zigbee. The Nest Temperature Sensor (2nd gen) is better reviewed and the longer battery, at 3 years, and it only reports temperature to a Nest thermostat.

Humidity and barometric pressure. The app also derives dew point and VPD. The Nest Temperature Sensor (2nd gen) measures temperature only. Owners of the Sonoff sensor report that pressure does not appear on every platform, including SmartThings, even when temperature and humidity do.

No. It needs a Zigbee hub. Apple Home and Matter need a SONOFF hub specifically. The Nest Temperature Sensor (2nd gen) needs a Nest thermostat instead, and it has no Zigbee, Wi-Fi or Matter radio of its own.

A Nest thermostat owner who wants one room, often an upstairs bedroom, to drive the schedule in Google Home. It has no humidity, no pressure, no display and no alerts of its own. Confirm the thermostat is compatible before ordering, especially outside the US.

Someone on Zigbee, especially Home Assistant, who wants temperature, humidity and pressure for a greenhouse, cellar or workshop. It has no screen, it is not weather resistant, and it runs on a CR2477 rated for 2 years.