Nest Temperature Sensor (2nd gen) vs Sonoff SNZB-02WD

The Sonoff SNZB-02WD wins overall, adding an LCD screen, IP65 weather resistance, humidity sensing, alerts and automations at a lower price. The Nest Temperature Sensor (2nd gen) is a temperature-only Nest Thermostat accessory with a higher owner rating and long battery life.

The Sonoff is a self-contained Zigbee sensor with a display and weatherproofing that measures temperature and humidity and runs automations, while the Nest reads temperature only and works solely as a Nest Thermostat companion.

The Sonoff SNZB-02WD does both, with a built-in LCD and an IP65 rating for garages, greenhouses and damp spots. The Nest Temperature Sensor (2nd gen) has no display and no weather-resistance rating.

Only the Sonoff SNZB-02WD, which senses both temperature and humidity and can alert on either. The Nest Temperature Sensor (2nd gen) tracks temperature alone.

Zigbee smart-home users who want an on-device display, IP65 durability and humidity readings for outdoor or utility spaces, and who already run a Zigbee hub with Home Assistant.

Nest Thermostat owners who want a long-lasting room sensor to help their thermostat balance temperature, and do not need a screen, humidity data, alerts or broader integrations.