Updated November 2026
Data from the official Ring and X-Sense sites.
2026 verdict
A loud alarm right where the water is tips this one to the X-Sense Wi-Fi Water Leak Detector, while the Ring Flood & Freeze Sensor (2nd Gen) only sends a notification.
The X-Sense also carries a 5-year warranty against 1 year, sends low battery alerts and runs about 3 years on two AAA batteries through its SBS50 base station. The Ring Flood & Freeze Sensor (2nd Gen) is the one to pick for cold spaces: it senses low temperatures, sends freeze alerts, runs about 6 years on two AA batteries and reports over Amazon Sidewalk, which owners say kept alerts coming when their Wi-Fi went down. Both are IP66 and both work with Home Assistant, and neither supports Google Home, Apple Home, SmartThings or Matter. Choose the X-Sense Wi-Fi Water Leak Detector for an audible alarm and a long warranty, and the Ring Flood & Freeze Sensor (2nd Gen) for freeze warnings in a Ring home.
Works with
vs
Winner
25% OFF
Prime exclusive deal$11.99
$15.99
Join Prime to buy it at $11.99
Works with
News by email
Still comparing? Get what's new by email
New releases and the smart home news worth knowing, in your inbox.
No spam. Unsubscribe in one click.
The biggest differences
Where these two are furthest apart, and by how much.
- Warranty5×X-Sense Wi-Fi Water Leak Detector5 years vs 1 year
- Battery Life2×Ring Flood & Freeze Sensor (2nd Gen)6 years vs 3 years
| Feature | Ring Flood & Freeze Sensor (2nd Gen) | X-Sense Wi-Fi Water Leak Detector | Winner |
|---|---|---|---|
| Price | $39.99 | $11.99 | X-Sense Wi-Fi Water Leak Detector |
| Rating | 3.8 | 4.5 | X-Sense Wi-Fi Water Leak Detector |
| Warranty | 1 year | 5 years | X-Sense Wi-Fi Water Leak Detector |
| Battery Life | 6 years | 3 years | Ring Flood & Freeze Sensor (2nd Gen) |
| Sensors | Water Leak, Temperature | Water Leak | Ring Flood & Freeze Sensor (2nd Gen) |
| Alerts | Water Leak Alerts, Freeze Temperature Alerts | Water Leak Alerts, Low Battery Alerts | Ring Flood & Freeze Sensor (2nd Gen) |
| On Device Alert Sound | NO | YES | X-Sense Wi-Fi Water Leak Detector |
| Weather Resistance | IP66 | IP66 | Tie |
| Connectivity | Other | Other | Tie |
| Integrations | Home Assistant | Home Assistant | Tie |
| On Device Alert Light | NO | NO | Tie |
What the differences mean
Local alarm
The X-Sense Wi-Fi Water Leak Detector sounds an alarm on the spot. The Ring Flood & Freeze Sensor (2nd Gen) has no siren or light, so the phone is the only warning.
Freeze warnings
The Ring Flood & Freeze Sensor (2nd Gen) senses low temperatures and sends freeze alerts, which matters in a crawlspace or an unheated utility room. The X-Sense detects water only.
How it connects
The Ring reports over Amazon Sidewalk, so a Wi-Fi outage does not silence it. The X-Sense needs its SBS50 base station to reach the app.
Warranty and batteries
The X-Sense Wi-Fi Water Leak Detector has a 5-year warranty and lasts about 3 years on AAA cells. The Ring Flood & Freeze Sensor (2nd Gen) has a 1-year warranty but is rated for about 6 years on AA cells.
Which one to buy if
- you want to hear a leak in the house without your phone
The X-Sense Wi-Fi Water Leak Detector sounds an alarm; the Ring stays silent.
- the sensor goes in a space where pipes could freeze
The Ring Flood & Freeze Sensor (2nd Gen) sends freeze alerts; the X-Sense does not measure temperature.
- you already run Ring cameras or an alarm
The Ring sits in the same app as the rest of your Ring devices and reports over Sidewalk.
- a long warranty matters to you
The X-Sense Wi-Fi Water Leak Detector is covered for 5 years, against 1 year for the Ring.
$39.99
- + Battery Life: 6 years
- + Sensors: Water Leak, Temperature
- + Alerts: Water Leak Alerts, Freeze Temperature Alerts
- - Price: $39.99 vs $11.99
- - Rating: 3.8 vs 4.5
Winner
25% OFF
Prime exclusive deal$11.99
$15.99
- + Price: $11.99
- + Rating: 4.5
- + Warranty: 5 years
- - Battery Life: 3 years vs 6 years
- - Sensors: Water Leak vs Water Leak, Temperature
What owners say
Owners of both sensors describe them catching real trouble, and both groups call setup easy. Ring Flood & Freeze Sensor (2nd Gen) owners single out the Sidewalk connection, with several saying a flood alert still arrived during a storm while their Wi-Fi and Ring hub were down, and like seeing it alongside their other Ring devices in one app. They warn that it only notifies, with no siren and no shutoff valve link like the first generation, and that a unit that drops offline needs someone on site to reset it. X-Sense Wi-Fi Water Leak Detector owners talk about sump pump failures and appliance leaks caught early, an alarm loud enough to notice from elsewhere in the house and a slim puck that fits behind a toilet. Their only real complaint is a setup manual printed very small.
Frequently Asked Questions
Which is better: Ring Flood & Freeze Sensor (2nd Gen) or X-Sense Wi-Fi Water Leak Detector?
The X-Sense Wi-Fi Water Leak Detector for most homes: it has a local alarm, low battery alerts and a 5-year warranty. The Ring Flood & Freeze Sensor (2nd Gen) is better when freeze alerts and a connection that survives a Wi-Fi outage matter more.
What is the biggest difference between the Ring Flood & Freeze Sensor (2nd Gen) and the X-Sense Wi-Fi Water Leak Detector?
The X-Sense Wi-Fi Water Leak Detector sounds an alarm on the spot, while the Ring Flood & Freeze Sensor (2nd Gen) is silent but adds freeze alerts and connects over Amazon Sidewalk.
Does the Ring Flood & Freeze Sensor (2nd Gen) need Wi-Fi?
It reports over Amazon Sidewalk, which is why owners describe alerts still arriving when their Wi-Fi was down. The X-Sense Wi-Fi Water Leak Detector reports through its SBS50 base station instead.
Do they work with Home Assistant?
Yes, both the Ring Flood & Freeze Sensor (2nd Gen) and the X-Sense Wi-Fi Water Leak Detector are listed with Home Assistant support. Neither supports Google Home, Apple Home, SmartThings or Matter.
Who should buy the Ring Flood & Freeze Sensor (2nd Gen)?
Ring households that want leak and freeze alerts in basements or crawlspaces, with very long battery life and a connection that does not depend on Wi-Fi.
Who should buy the X-Sense Wi-Fi Water Leak Detector?
Anyone who wants a slim IP66 leak alarm that sounds on the spot, with low battery alerts and a 5-year warranty.
Spotted something wrong on this page? Tell us and we will fix it.
Our store on AmazonShop our ideas on AmazonLists of the smart home setups we would put together ourselves, ready to add to your Amazon cart.Shop on AmazonFull comparison table
Compare all 34 Water Leak Sensors side by side
You are looking at two of them. The full table lines up all Water Leak Sensors in the catalog with the same specs, so you can filter by what you need and sort by price or rating.
- 34 Water Leak Sensors
- 37 specs compared
- 34 filters
- Water Leak Sensors
Water Leak Sensor 4
- Water Leak Sensors
Water Leak Sensor 1
- Water Leak Sensors
Tapo T300
- Water Leak Sensors
Water Guard
- Water Leak Sensors
Water Leak Sensor
- Water Leak Sensors
Water and Freeze Sensor
- Water Leak Sensors
Flood S Gen4
- Water Leak Sensors
Water Leak Detector 2
- Water Leak Sensors
Water Leak Detector (Sensor Cable Edition)
- Water Leak Sensors
Water Leak Detector
- Water Leak Sensors
Zigbee Water Leak Sensor
- Water Leak Sensors
Water Leak Sensor T1
- Water Leak Sensors
Flood Sensor (Z-Wave)
- Water Leak Sensors
Flood & Freeze Sensor E20
- Water Leak Sensors
Water Leak Sensor
- Water Leak Sensors
Water Sensor Alarm
- Water Leak Sensors
Smart Water Leakage Sensor
- Water Leak Sensors
Flood Sensor (HomeKit)
- Water Leak Sensors
Water Leak Sensor
- Water Leak Sensors
Flood Gen4
- Alarm Systems
Alarm (2nd Gen) 5-Piece Kit
- Alarm Systems
Alarm (2nd Gen) 8-Piece Kit
- Alarm Systems
Alarm (2nd Gen) EU
- Alarm Systems
Alarm Pro 14-Piece Kit
- Alarm Systems
Alarm Pro 8-Piece Kit
- Cameras
Floodlight Cam 2K
- Cameras
Floodlight Cam 4K Plus (Wired)
- Cameras
Floodlight Cam 4K Pro
- Cameras
Floodlight Cam Wired Plus
- Cameras
Indoor Cam 4K
- Cameras
Indoor Cam Plus
- Cameras
Ring Indoor Cam
- Cameras
Outdoor Cam (2nd Gen)
- Cameras
Outdoor Cam 4K Pro (Plug-In)
- Cameras
Ring Outdoor Cam Plus
- Cameras
Ring Outdoor Cam
- Cameras
Pan-Tilt Indoor Cam 2K
- Cameras
Pan-Tilt Indoor Cam
- Cameras
Spotlight Cam 2K
- Cameras
Spotlight Cam 4K Pro (2nd Gen)
- Air Quality Monitors
XR0A-iR Wi-Fi Radon Detector
- Hubs
SBS50 Base Station
- Motion Sensors
Solar Outdoor Spotlight - Motion-Sensor
- Smoke & CO Detectors
SC07-MR Smart Smoke & CO Alarm
- Smoke & CO Detectors
SD19-MN Interconnected Smart Smoke Alarm
- Smoke & CO Detectors
Wi-Fi CO Alarm
- Smoke & CO Detectors
Wi-Fi Smoke Alarm
- Smoke & CO Detectors
WiFi Smoke & CO Detector
- Smoke & CO Detectors
XC0M-iR Smart Carbon Monoxide Alarm with Voice Alerts
- Smoke & CO Detectors
XP0J-iA Smart Hardwired Smoke & CO Alarm
- Temperature & Humidity Sensors
Smart WiFi Indoor Thermometer
- Temperature & Humidity Sensors
STH0B Smart Thermometer Hygrometer
- Water Leak Sensors
2-in-1 Wi-Fi Water Leak & Freeze Detector