Eve Water Guard vs Moen Smart Leak Detector (2026)

Updated September 2026

Data from Amazon and official Eve and Moen sites.

2026 verdict

Thread leak cable versus Wi-Fi freeze alerts: the Moen Smart Leak Detector is the better overall water leak sensor, winning on price, sensors and alerts.

Winner

Moen Smart Leak Detector

$51.00$54.877% OFF

Buy on Amazon USACheck price

It adds temperature and freeze coverage over 2.4 GHz Wi-Fi with Alexa. The Eve Water Guard still wins on owner rating and Thread connectivity, with a sensing cable, a local siren and native HomeKit, but it is leak-only and Matter is still listed as soon. Pick the Moen Smart Leak Detector for hub-free freeze monitoring; pick the Eve Water Guard if you want a Thread leak cable in Apple Home.

Eve

Eve Water Guard

9% OFF

$99.95

$109.95

Buy on Amazon USACheck price

Winner

Moen

Moen Smart Leak Detector

7% OFF

$51.00

$54.87

Buy on Amazon USACheck price

Price alerts

Water Leak Sensor prices change while you decide

We check the price of every Water Leak Sensor in the catalog daily and email you the drops, whichever one you pick.

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Feature	Eve Water Guard	Moen Smart Leak Detector	Winner
Price	$99.95	$51.00	Moen Smart Leak Detector
Rating	4.5	3.3	Eve Water Guard
Connectivity	Bluetooth, Thread Protocol	2.4 GHz WiFi	Eve Water Guard
Sensors	Water Leak	Water Leak, Temperature	Moen Smart Leak Detector
Alerts	Water Leak Alerts	Water Leak Alerts, Temperature Alerts, Freeze Temperature Alerts	Moen Smart Leak Detector
Weather Resistance	YES	IP67	Tie
Warranty	1 year	1 year	Tie
Integrations	Apple HomeKit, Home Assistant	Alexa, Home Assistant	Tie
On Device Alert Sound	YES	YES	Tie
On Device Alert Light	YES	YES	Tie

Eve

Eve Water Guard

9% OFF

$99.95

$109.95

Buy on Amazon USACheck price

+ Rating: 4.5
+ Connectivity: Bluetooth, Thread Protocol
- Price: $99.95 vs $51.00
- Sensors: Water Leak vs Water Leak, Temperature

Winner

Moen

Moen Smart Leak Detector

7% OFF

$51.00

$54.87

Buy on Amazon USACheck price

+ Price: $51.00
+ Sensors: Water Leak, Temperature
+ Alerts: Water Leak Alerts, Temperature Alerts, Freeze Temperature Alerts
- Rating: 3.3 vs 4.5
- Connectivity: 2.4 GHz WiFi vs Bluetooth, Thread Protocol

Frequently Asked Questions

Which is better overall: Eve Water Guard or Moen Smart Leak Detector?

The Moen Smart Leak Detector is the better overall water leak sensor. It wins on price, sensors and alerts. The Eve Water Guard wins on rating and connectivity.

Does the Eve Water Guard detect freeze risk?

No. The Eve Water Guard is leak-only (with a sensing cable). The Moen Smart Leak Detector includes temperature and freeze-temperature alerts.

Does the Eve Water Guard need a Thread border router?

Yes. The Eve Water Guard uses Thread and needs a Thread border router. The Moen Smart Leak Detector joins 2.4 GHz Wi-Fi directly.

Who should buy the Moen Smart Leak Detector?

Buy the Moen Smart Leak Detector for hub-free Wi-Fi leak and freeze alerts with Alexa and a 48-inch sensing cable.

Who should buy the Eve Water Guard?

Buy the Eve Water Guard if you want a Thread leak sensor with a sensing cable, a local siren and native Apple HomeKit.

Full comparison table

Compare all 32 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.