Meross Smart Water Leak Sensor vs YoLink Water Leak Sensor 1

For a set-and-forget water-only sensor, the YoLink Water Leak Sensor 1 wins, with IP68 sealing, up to five years of battery and a lower price. The Meross Smart Water Leak Sensor is the pick when Apple HomeKit is the platform you run, since it shows up natively in the Home app and adds a small on-device alarm.

The ecosystem and the battery. The Meross Smart Water Leak Sensor is HomeKit-native with a small on-device alarm and about 18 months of battery on a CR123A, while the YoLink Water Leak Sensor 1 is IP68 and rated for up to five years on two AAA cells but is silent and lives in Home Assistant and IFTTT.

Yes. The Meross Smart Water Leak Sensor is the HomeKit-native sensor of this pair, pairing with a Meross Smart Wi-Fi Hub and appearing in the Apple Home app for automations. The YoLink Water Leak Sensor 1 does not support HomeKit.

Both do. The Meross Smart Water Leak Sensor needs a Meross Smart Wi-Fi Hub, and the YoLink Water Leak Sensor 1 needs a YoLink hub. Neither has its own Wi-Fi radio, so each is an add-on to its own system.

The YoLink Water Leak Sensor 1, rated for up to five years on two AAA batteries, against about 18 months on a CR123A for the Meross Smart Water Leak Sensor. For a device left under a sink, the YoLink needs far fewer battery changes.

Buy the Meross Smart Water Leak Sensor for an Apple HomeKit household that wants native integration and a small local alarm. Buy the YoLink Water Leak Sensor 1 for damp utility rooms, basements and a large set of far-flung sensors with the longest battery and the lowest cost.