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Water Leak Sensors · Head to head

Eve Water Guard vs Ring Flood & Freeze Sensor (2nd Gen)

Full Smart Water Leak Sensors comparison in 2026

Updated October 2026
Data from Amazon and official Eve and Ring sites.
2026 verdict
Water on the floor is the job they share, still the Eve Water Guard is the leak sensor to buy for a long appliance run.
Eve Water Guard
Winner
Eve Water Guard
$74.95$109.9532% OFFPrime exclusive deal

Last recorded price

Buy on Amazon USA
It is a wired Thread and Bluetooth unit with a sensing cable, a loud on-device siren and a light, native Apple Home, and Home Assistant, with Matter marked as coming later. The Ring Flood & Freeze Sensor (2nd Gen) is a battery puck, up to 6 years on two AA cells, IP66, with leak and freeze alerts over Amazon Sidewalk and Home Assistant. It has no siren, and automations are not supported. Choose the Eve Water Guard to cover a kitchen or laundry run in an Apple home. Choose the Ring Flood & Freeze Sensor (2nd Gen) for a Ring house that only needs a freeze and leak warning.
Winner
Eve Water Guard
Eve

Eve Water Guard

32% OFF
Prime exclusive deal
$74.95
$109.95
4% above its lowest price of the last 6 months ($72.19)
Lowest price of the last 6 months

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Last recorded price

Buy on Amazon USA
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FeatureEve Water GuardRing Flood & Freeze Sensor (2nd Gen)Winner
Price$74.95$24.99Ring Flood & Freeze Sensor (2nd Gen)
Rating4.53.7Eve Water Guard
ConnectivityBluetooth, Thread ProtocolOtherEve Water Guard
IntegrationsApple HomeKit, Home AssistantHome AssistantEve Water Guard
SensorsWater LeakWater Leak, TemperatureRing Flood & Freeze Sensor (2nd Gen)
AlertsWater Leak AlertsWater Leak Alerts, Freeze Temperature AlertsRing Flood & Freeze Sensor (2nd Gen)
On Device Alert SoundYESNOEve Water Guard
On Device Alert LightYESNOEve Water Guard
Weather ResistanceYESIP66Tie
Warranty1 year1 yearTie

What the differences mean

Cable versus a single spot

The Eve Water Guard uses a sensing cable, so one powered unit can follow a run behind a washer or along a kitchen toe-kick. The product page describes a cable that can be extended a long way. The Ring Flood & Freeze Sensor (2nd Gen) is a puck with no sensor cable. It watches the patch of floor it sits on, which is enough for one tray and useless for a long hidden run.

Power and freeze sensing

The Eve Water Guard is wired. Battery type and battery life are marked not applicable, so it has to stay near an outlet, and it does not sense temperature or send freeze alerts. The Ring Flood & Freeze Sensor (2nd Gen) is rated for 6 years on two AA cells, senses low temperatures, and sends freeze alerts. No outlet is required. That is the case for a crawlspace or a vacation house.

Alarm on the device

The Eve Water Guard has an on-device sound and light, and automations are supported. Owners describe the siren as loud. The Ring Flood & Freeze Sensor (2nd Gen) has no sound, no light, and automations are not supported. If nobody is watching the phone, only the Eve makes a noise in the room.

Which home platform

The Eve Water Guard supports Apple Home and Home Assistant over Bluetooth and Thread, and a Thread border router is required. Matter is listed as coming, not as supported today. Google Home, Alexa and SmartThings are not supported. The Ring Flood & Freeze Sensor (2nd Gen) uses Amazon Sidewalk, supports Home Assistant, and does not support Apple Home, Google Home, Alexa, SmartThings or Matter.

Which one to buy if

Winner
Eve

Eve Water Guard

32% OFF
Prime exclusive deal
$74.95
$109.95

Last recorded price

Buy on Amazon USA
  • + Rating: 4.5
  • + Connectivity: Bluetooth, Thread Protocol
  • + Integrations: Apple HomeKit, Home Assistant
  • - Price: $74.95 vs $24.99
  • - Sensors: Water Leak vs Water Leak, Temperature
Ring

Ring Flood & Freeze Sensor (2nd Gen)

38% OFF
Prime exclusive deal
$24.99
$39.99

Last recorded price

Buy on Amazon USA
  • + Price: $24.99
  • + Sensors: Water Leak, Temperature
  • + Alerts: Water Leak Alerts, Freeze Temperature Alerts
  • - Rating: 3.7 vs 4.5
  • - Connectivity: Other vs Bluetooth, Thread Protocol

What owners say

Owners are not describing the same kind of relief. Eve Water Guard owners talk about one cable covering a whole appliance run, a scan-and-add HomeKit setup with no account, and a loud siren plus a light that fired with the phone alert. Several credit it with catching a leak early. Their complaints are the higher price against spot sensors, the need for a wall outlet, and a smaller group who saw a unit stop reporting. Ring Flood & Freeze Sensor (2nd Gen) owners talk about a Ring app that pairs in minutes and Sidewalk alerts that still arrived in a storm when Wi-Fi was down, and they like the IP66 body on a basement floor. They complain that this generation only notifies, with no siren and no valve shutoff, and that a dropped unit has no reset on the device itself.

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
  • Ring Flood & Freeze Sensor (2nd Gen)

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Frequently Asked Questions

Which is better overall: Eve Water Guard or Ring Flood & Freeze Sensor (2nd Gen)?

The Eve Water Guard when you want a sensing cable, a local siren and Apple Home. The Ring Flood & Freeze Sensor (2nd Gen) when you want a battery leak and freeze sensor on Amazon Sidewalk, with no siren and no automations.

What is the biggest difference between the Eve Water Guard and the Ring Flood & Freeze Sensor (2nd Gen)?

Coverage and power. The Eve is a wired sensing cable with a siren, a light, Thread and Apple Home, and it does not sense temperature. The Ring is a battery puck rated for 6 years, IP66, with leak and freeze alerts over Sidewalk and no local alarm.

Does the Eve Water Guard detect freezing pipes the way the Ring Flood & Freeze Sensor (2nd Gen) does?

No. Temperature and freeze alerts are not supported on the Eve Water Guard. The Ring Flood & Freeze Sensor (2nd Gen) senses low temperatures and sends freeze alerts, but not a general temperature alert.

Does the Eve Water Guard work with Matter, Alexa or Google Home?

Matter on the Eve Water Guard is marked as coming, not available now. Alexa, Google Home and SmartThings are not supported. Apple Home and Home Assistant are. The Ring Flood & Freeze Sensor (2nd Gen) does not support Matter, Alexa, Google Home, Apple Home or SmartThings.

Who should buy the Eve Water Guard?

Buy the Eve Water Guard for an Apple Home or Thread house that can power a sensing cable along a kitchen or laundry run and wants a siren in the room.

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

Buy the Ring Flood & Freeze Sensor (2nd Gen) for a Ring household that wants leak and freeze notices, a long AA rating and Sidewalk, including a spot with no outlet. Do not buy it for a local siren.

Full comparison table

Compare all 34 Water Leak Sensors side by side

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