Eufy Water and Freeze Sensor vs Shelly Flood Gen4

The Shelly Flood Gen4 wins overall thanks to its longer warranty, weather resistance, wide protocol support (Wi-Fi, Bluetooth, Zigbee, Matter), and its built-in alarm and light. The Eufy Water and Freeze Sensor counters with a lower price and a higher owner rating.

Connectivity range and ecosystem lock-in. The Shelly Flood Gen4 supports Wi-Fi, Bluetooth, Zigbee, and Matter, fitting into almost any smart home, while the Eufy Water and Freeze Sensor works only through a proprietary Eufy HomeBase.

The Shelly Flood Gen4 comes with a notably longer warranty than the Eufy Water and Freeze Sensor's standard one-year coverage.

Yes, the Shelly Flood Gen4 ships with a 2-meter extendable sensor cable for reaching tight spots. The Eufy Water and Freeze Sensor has no included sensor cable.

Choose it if you're already on a Eufy HomeBase and want the more affordable, better-reviewed sensor.

Pick it if you want maximum protocol flexibility across Wi-Fi, Zigbee, Bluetooth, or Matter along with a built-in alarm and cable probe.