Kidde WiFi Water Leak & Freeze Detector vs YoLink Water Leak Sensor 4

The YoLink Water Leak Sensor 4 wins overall on reviews, warranty, weather resistance, and an alert light, with LoRa range and a loud local siren. The Kidde WiFi Water Leak & Freeze Detector is the cheaper, hub-free alternative with Google Home as well as Alexa.

Radio and hardware. The Kidde WiFi Water Leak & Freeze Detector is a 2.4 GHz Wi-Fi puck with no hub. The YoLink Water Leak Sensor 4 uses LoRa through a YoLink hub, is IP66, lasts about 5 years on 2x AAA, and sounds a 105 dB siren even if the hub drops.

Yes. The Kidde WiFi Water Leak & Freeze Detector alerts at 37 °F or on a rapid drop. The YoLink Water Leak Sensor 4 also reports low-temperature and freeze-risk conditions, alongside leak alerts.

No. The YoLink Water Leak Sensor 4 supports Alexa and Home Assistant, not Google Home, Apple HomeKit, SmartThings or Matter. The Kidde WiFi Water Leak & Freeze Detector supports Google Home, Alexa and Home Assistant, but not HomeKit, SmartThings or Matter.

Buyers who will add a YoLink hub for long-range leak and freeze coverage, an IP66 body, a 2-year warranty, and a 105 dB siren that still fires if the hub is offline.

Buyers who want the cheaper hub-free Wi-Fi puck with freeze alerts and Google Home or Alexa, and who do not need LoRa range or a weather-resistance rating.