9% OFF
$99.95
$109.95
38% above its lowest price of the last 6 months ($72.19)
Also sold in packs
- Pack of 29% OFF$199.90$219.90$99.95 per unitBuy
Updated October 2026
Data from Amazon and official Eve and Kidde sites.
2026 verdict
The Kidde WiFi Water Leak & Freeze Detector is the smarter all-round buy over the Eve Water Guard, mainly because it also watches temperature and warns about freezing pipes.
It needs no hub or outlet, joining Wi-Fi on two AA cells, and it works with Google Home and Home Assistant. The Eve Water Guard answers with a 2 m sensing cable that reaches a whole appliance run and extends far further, a 100 dB siren with an alert light and native Apple HomeKit, but it must stay plugged in and it detects water only. Pick the Kidde for spot coverage plus freeze alerts, and the Eve for HomeKit and cable coverage.
vs
Winner
34% OFF
$23.92
$35.97
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| Feature | Eve Water Guard | Kidde WiFi Water Leak & Freeze Detector | Winner |
|---|---|---|---|
| Price | $99.95 | $23.92 | Kidde WiFi Water Leak & Freeze Detector |
| Rating | 4.6 | 3.9 | Eve Water Guard |
| Weather Resistance | YES | NO | Eve Water Guard |
| Connectivity | Bluetooth, Thread Protocol | 2.4 GHz WiFi | Eve Water Guard |
| Sensors | Water Leak | Water Leak, Temperature | Kidde WiFi Water Leak & Freeze Detector |
| Alerts | Water Leak Alerts | Water Leak Alerts, Temperature Alerts, Freeze Temperature Alerts, Low Battery Alerts | Kidde WiFi Water Leak & Freeze Detector |
| Warranty | 1 year | 1 year | Tie |
| Integrations | Apple HomeKit, Home Assistant | Google Home, Home Assistant | Tie |
| On Device Alert Sound | YES | YES | Tie |
What the differences mean
Coverage
The Eve Water Guard uses a 2 m sensing cable that detects along its whole length and extends to cover a long run of appliances. The Kidde is a spot sensor that catches water only where its contacts sit.
Power
The Eve plugs into a wall outlet and has no battery to replace, which limits it to spots near a socket. The Kidde runs on two AA cells and can go anywhere within Wi-Fi range.
Freeze and temperature
The Kidde has a temperature sensor and raises freeze and general temperature alerts. The Eve detects water only, with no temperature sensing at all.
Alarm
The Eve has a 100 dB siren and an alert light on the unit. The Kidde has a sound, but its volume and alert light are not documented.
Ecosystem
The Eve is built for Apple HomeKit and Thread, with Home Assistant support too. The Kidde works with Google Home and Home Assistant but not HomeKit, SmartThings or Matter.
Price
The Kidde is the cheaper option and keeps that advantage across several spots. The Eve carries a premium for its cable and its HomeKit-native design.
Which one to buy if
- you want one sensor to watch a whole run behind appliances
The Eve Water Guard's 2 m sensing cable covers a full kitchen or laundry run instead of a single point.
- you run Apple Home or Thread
The Eve pairs natively with Apple HomeKit through Thread, with no manufacturer account.
- you want hub-free Wi-Fi with freeze alerts
The Kidde joins Wi-Fi directly and adds a temperature sensor with freeze alerts.
- you need battery power away from an outlet
The Kidde runs on two AA cells, while the Eve must stay plugged in.
- you are watching several spots on a budget
The Kidde costs less per unit and needs no outlet, so several sensors stay practical.
9% OFF
$99.95
$109.95
- + Rating: 4.6
- + Weather Resistance: YES
- + Connectivity: Bluetooth, Thread Protocol
- - Price: $99.95 vs $23.92
- - Sensors: Water Leak vs Water Leak, Temperature
Winner
34% OFF
$23.92
$35.97
- + Price: $23.92
- + Sensors: Water Leak, Temperature
- + Alerts: Water Leak Alerts, Temperature Alerts, Freeze Temperature Alerts, Low Battery Alerts
- - Rating: 3.9 vs 4.6
- - Weather Resistance: NO vs YES
What owners say
Owners of both detectors describe a leak caught before it did damage, and each group trusts the device enough to leave it alone. Eve Water Guard owners single out the sensing cable that covers a full kitchen or laundry run instead of one point, a clean HomeKit setup with no account, and a 100 dB siren with an alert light, while they warn about the premium price, the need for a nearby outlet and the lack of Alexa, Google Home or SmartThings support. Kidde WiFi Water Leak & Freeze Detector owners value the hub-free Wi-Fi setup and the freeze alerts for pipes, and their complaints are Wi-Fi pairing, a stubborn battery compartment and a temperature reading that only refreshes every twelve hours.
Price history compared
Every price change of both, in the same store, so the gap between the two lines is what one costs more than the other.
- Eve Water Guard
- Kidde WiFi Water Leak & Freeze Detector
Loading price history...
Frequently Asked Questions
Which is better overall: Eve Water Guard or Kidde WiFi Water Leak & Freeze Detector?
The Kidde WiFi Water Leak & Freeze Detector for most homes, because it also watches temperature and freezing pipes and needs no outlet. The Eve Water Guard is the better pick when you want cable coverage along a long run of appliances and run Apple HomeKit or Thread.
What is the biggest difference between the Eve Water Guard and the Kidde WiFi Water Leak & Freeze Detector?
How they detect and where they sit. The Eve Water Guard uses a sensing cable that covers a whole appliance run and plugs into a wall outlet, while the Kidde WiFi Water Leak & Freeze Detector is a battery spot sensor that adds temperature and freeze alerts.
Does the Eve Water Guard need an outlet?
Yes. It is wired for power and plugs into a wall outlet, so there are no batteries to replace but it has to be placed near a socket.
Does the Eve Water Guard warn about freezing pipes?
No. It detects water only, with no temperature or freeze alerts. The Kidde WiFi Water Leak & Freeze Detector has a temperature sensor and raises freeze alerts.
Does the Kidde WiFi Water Leak & Freeze Detector work with Apple HomeKit?
No. It supports Google Home and Home Assistant, with no Apple HomeKit, SmartThings or Matter support.
Who should buy the Eve Water Guard?
Apple HomeKit and Thread households that want one sensor to cover a long appliance run, with a loud on-device siren and no account setup.
Who should buy the Kidde WiFi Water Leak & Freeze Detector?
Anyone without a hub who wants a low-cost Wi-Fi sensor that catches leaks and freezing pipes and works with Google Home or Home Assistant.
Full comparison table
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