Water Leak Sensors · Head to head

Shelly Flood Gen4 vs X-Sense 2-in-1 Wi-Fi Water Leak & Freeze Detector

Full Smart Water Leak Sensors comparison in 2026

Updated November 2026
Data from the official Shelly and X-Sense sites.
2026 verdict
Matter flood sensor versus a budget freeze puck?
Shelly Flood Gen4
Winner
Shelly Flood Gen4
$39.99
Buy on Amazon USA
The Shelly Flood Gen4 wins this water leak sensor matchup on the stronger owner reviews, broader connectivity and broader smart home integrations. Give the X-Sense 2-in-1 Wi-Fi Water Leak & Freeze Detector a look if the more affordable price, a 5-year warranty and IP66 weather sealing matter more in your setup. Buy the Shelly Flood Gen4 if Matter, Apple HomeKit and a sensing cable are the brief; buy the X-Sense 2-in-1 Wi-Fi Water Leak & Freeze Detector if you want a cheaper freeze alarm with IP66 sealing and a 5-year warranty.
Works with
Connectivity
vs
Connectivity
  • Wi-Fi 2.4 GHz
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FeatureShelly Flood Gen4X-Sense 2-in-1 Wi-Fi Water Leak & Freeze DetectorWinner
Rating4.13.0Shelly Flood Gen4
Warranty3 years5 yearsX-Sense 2-in-1 Wi-Fi Water Leak & Freeze Detector
Weather ResistanceIP44IP66X-Sense 2-in-1 Wi-Fi Water Leak & Freeze Detector
Connectivity2.4 GHz WiFi, Bluetooth, Zigbee2.4 GHz WiFiShelly Flood Gen4
IntegrationsGoogle Home, Apple HomeKit, Samsung SmartThings, Home Assistant, MatterNoneShelly Flood Gen4
Battery Life2 years2 yearsTie
SensorsWater Leak, TemperatureWater Leak, TemperatureTie
AlertsWater Leak Alerts, Temperature Alerts, Freeze Temperature Alerts, Low Battery AlertsWater Leak Alerts, Temperature Alerts, Freeze Temperature Alerts, Low Battery AlertsTie
On Device Alert SoundYESYESTie
Winner
Shelly

Shelly Flood Gen4

Prime exclusive deal
$39.99
Buy on Amazon USA
  • + Rating: 4.1
  • + Connectivity: 2.4 GHz WiFi, Bluetooth, Zigbee
  • + Integrations: Google Home, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter
  • - Warranty: 3 years vs 5 years
  • - Weather Resistance: IP44 vs IP66

Frequently Asked Questions

For a water leak sensor, is Shelly Flood Gen4 better than X-Sense 2-in-1 Wi-Fi Water Leak & Freeze Detector?

The Shelly Flood Gen4 is better overall, winning on the stronger owner reviews, broader connectivity and broader smart home integrations. The X-Sense 2-in-1 Wi-Fi Water Leak & Freeze Detector still leads on the more affordable price and a 5-year warranty.

What should I compare first on the Shelly Flood Gen4 versus the X-Sense 2-in-1 Wi-Fi Water Leak & Freeze Detector?

The X-Sense 2-in-1 Wi-Fi Water Leak & Freeze Detector is built around six probes, freeze alerts at 39 F and a 110 dB siren on hub-free 2.4 GHz Wi-Fi. The Shelly Flood Gen4 answers with the stronger owner reviews, broader connectivity and broader smart home integrations.

Which has the longer warranty, the Shelly Flood Gen4 or the X-Sense 2-in-1 Wi-Fi Water Leak & Freeze Detector?

The X-Sense 2-in-1 Wi-Fi Water Leak & Freeze Detector is covered for 5 years, against 3 years on the Shelly Flood Gen4.

Which of the Shelly Flood Gen4 and the X-Sense 2-in-1 Wi-Fi Water Leak & Freeze Detector works with more smart home platforms?

The Shelly Flood Gen4 reaches Google Home, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter. The X-Sense 2-in-1 Wi-Fi Water Leak & Freeze Detector has no third-party smart home integrations and stays in its own app.

Who should buy the Shelly Flood Gen4?

Most people comparing these two water leak sensors, because the Shelly Flood Gen4 wins on the stronger owner reviews and broader connectivity.

Who should buy the X-Sense 2-in-1 Wi-Fi Water Leak & Freeze Detector?

Buyers who specifically want the more affordable price and a 5-year warranty, even though the Shelly Flood Gen4 wins overall.

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