Moen Smart Leak Detector vs Ring Flood & Freeze Sensor (2nd Gen)

Updated September 2026

Data from Amazon and official Moen and Ring sites.

2026 verdict

Local siren versus a six-year Ring sensor: the Moen Smart Leak Detector is the better overall water leak sensor, winning on weather resistance, alerts, an on-device siren and an alert light.

Winner

Moen Smart Leak Detector

$51.00$54.877% OFF

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Freeze alerts are built in, and the body is IP67 with a sensing cable. The Ring Flood & Freeze Sensor (2nd Gen) answers with a lower price, a better owner rating, a 6-year battery and Sidewalk connectivity, but freeze alerts need a subscription and there is no local alarm. Choose the Moen Smart Leak Detector to hear the alarm without a plan; choose the Ring Flood & Freeze Sensor (2nd Gen) for a long-life Ring add-on.

Winner

Moen

Moen Smart Leak Detector

7% OFF

$51.00

$54.87

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Ring

Ring Flood & Freeze Sensor (2nd Gen)

$39.99

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Feature	Moen Smart Leak Detector	Ring Flood & Freeze Sensor (2nd Gen)	Winner
Price	$51.00	$39.99	Ring Flood & Freeze Sensor (2nd Gen)
Rating	3.3	3.5	Ring Flood & Freeze Sensor (2nd Gen)
Weather Resistance	IP67	IP66	Moen Smart Leak Detector
Battery Life	2 years	6 years	Ring Flood & Freeze Sensor (2nd Gen)
Connectivity	2.4 GHz WiFi	2.4 GHz WiFi, Other	Ring Flood & Freeze Sensor (2nd Gen)
Alerts	Water Leak Alerts, Temperature Alerts, Freeze Temperature Alerts	Water Leak Alerts, Freeze Temperature Alerts	Moen Smart Leak Detector
On Device Alert Sound	YES	NO	Moen Smart Leak Detector
On Device Alert Light	YES	NO	Moen Smart Leak Detector
Warranty	1 year	1 year	Tie
Integrations	Alexa, Home Assistant	Alexa, Home Assistant	Tie
Sensors	Water Leak, Temperature	Water Leak, Temperature	Tie

Winner

Moen

Moen Smart Leak Detector

7% OFF

$51.00

$54.87

Buy on Amazon USACheck price

+ Weather Resistance: IP67
+ Alerts: Water Leak Alerts, Temperature Alerts, Freeze Temperature Alerts
+ On Device Alert Sound: YES
- Price: $51.00 vs $39.99
- Rating: 3.3 vs 3.5

Ring

Ring Flood & Freeze Sensor (2nd Gen)

$39.99

Buy on Amazon USACheck price Buy on Amazon Canada

+ Price: $39.99
+ Rating: 3.5
+ Battery Life: 6 years
- Weather Resistance: IP66 vs IP67
- Alerts: Water Leak Alerts, Freeze Temperature Alerts vs Water Leak Alerts, Temperature Alerts, Freeze Temperature Alerts

Frequently Asked Questions

Which is better overall: Moen Smart Leak Detector or Ring Flood & Freeze Sensor (2nd Gen)?

The Moen Smart Leak Detector is the better overall water leak sensor. It wins on weather resistance, alerts, on-device alert sound and on-device alert light. The Ring Flood & Freeze Sensor (2nd Gen) wins on price, rating, battery life and connectivity.

Do freeze alerts on the Ring Flood & Freeze Sensor (2nd Gen) need a subscription?

Yes. Freeze-temperature alerts on the Ring Flood & Freeze Sensor (2nd Gen) require a subscription. The Moen Smart Leak Detector includes freeze-temperature alerts without that extra plan, plus a local siren.

Which sensor has the longer battery life?

The Ring Flood & Freeze Sensor (2nd Gen) is rated for 6 years on two AA cells. The Moen Smart Leak Detector is rated for 2 years on a CR123A.

Who should buy the Moen Smart Leak Detector?

Buy the Moen Smart Leak Detector for IP67 Wi-Fi leak and freeze alerts with a local siren, an LED and a sensing cable.

Who should buy the Ring Flood & Freeze Sensor (2nd Gen)?

Buy the Ring Flood & Freeze Sensor (2nd Gen) if you want a long-life Ring add-on with Alexa, Home Assistant and Amazon Sidewalk.

Full comparison table

Compare all 32 Water Leak Sensors side by side

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