Aqara Temperature and Humidity Sensor vs Sonoff LCD Smart Temperature Humidity Sensor

Sonoff LCD Smart Temperature Humidity Sensor, mainly for its 2.5 inch LCD, low-battery alerts and lower price. Aqara Temperature and Humidity Sensor wins on integrations, adding Apple HomeKit, IFTTT and Matter through an Aqara hub, and on sensing, since it also reports atmospheric pressure.

Only Aqara Temperature and Humidity Sensor, via an Aqara hub, which also brings IFTTT alongside Google Home, Alexa and Home Assistant. Sonoff LCD Smart Temperature Humidity Sensor covers Google Home, Alexa and Home Assistant, with no HomeKit, IFTTT, SmartThings or Matter.

Aqara Temperature and Humidity Sensor, at 36 x 36 x 9 mm and 13 g, small enough that owners put them inside fridges and freezers. Sonoff LCD Smart Temperature Humidity Sensor is 59.5 x 62.5 x 18.5 mm because it carries a screen, so it is meant to be seen rather than hidden.

Both measure temperature and humidity and can alert on either. Aqara Temperature and Humidity Sensor adds an atmospheric pressure reading, while Sonoff LCD Smart Temperature Humidity Sensor adds a low-battery alert so you know before it stops reporting.

Both are rated at about two years, the Aqara on a CR2032 and the Sonoff on a CR2450. Some Aqara owners report shorter life and describe the battery cover as fragile, while the Sonoff's CR2450 is widely available and easier to swap.

Apple Home households, anyone who wants pressure readings, and buyers who need tiny sensors scattered through cupboards, fridges or tight spaces. If you want to glance at the temperature without a phone, Sonoff LCD Smart Temperature Humidity Sensor is the better choice.