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Water Leak Sensors · Head to head

Aqara Water Leak Sensor vs Aqara Water Leak Sensor T1

Full Smart Water Leak Sensors comparison in 2026

Updated October 2026
Data from Amazon and official Aqara site.
2026 verdict
The newer Aqara Water Leak Sensor T1 edges the original Aqara Water Leak Sensor, though the two Aqara sensors are close.
Aqara Water Leak Sensor T1
Winner
Aqara Water Leak Sensor T1
€20.99
Buy on Amazon GermanyCheck price
The Aqara Water Leak Sensor T1 is the better reviewed of the pair and reaches more ecosystems: it triggers at 0.5 mm of water and connects directly to a SmartThings hub, and it adds a Google Home path through an Aqara hub that the original does not have. The Aqara Water Leak Sensor is the cheaper of the two and matches the newer model on battery life and IP67 protection. Both are silent on their own and need a hub to alert anyone, and neither senses temperature. Choose the Aqara Water Leak Sensor T1 for the wider platform support and the newer sensing design, and the original Aqara Water Leak Sensor if you want the lowest price for the same core job.
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FeatureAqara Water Leak SensorAqara Water Leak Sensor T1Winner
Price$18.99€20.99Aqara Water Leak Sensor
Rating4.24.4Aqara Water Leak Sensor T1
IntegrationsApple HomeKit, Samsung SmartThings, Home Assistant, MatterGoogle Home, Apple HomeKit, Samsung SmartThings, Home Assistant, MatterAqara Water Leak Sensor T1
Warranty1 year1 yearTie
Weather ResistanceIP67IP67Tie
Battery Life2 years2 yearsTie
ConnectivityZigbeeZigbeeTie
SensorsWater LeakWater LeakTie
AlertsWater Leak Alerts, Low Battery AlertsWater Leak Alerts, Low Battery AlertsTie
On Device Alert SoundNONOTie
On Device Alert LightNONOTie

What the differences mean

SmartThings pairing

The Aqara Water Leak Sensor T1 pairs directly with a SmartThings hub over Zigbee using SmartThings' own driver. The original Aqara Water Leak Sensor reaches SmartThings only by bridging through an Aqara hub, so the newer model is the simpler fit for a SmartThings home.

Trigger point

Aqara rates the Aqara Water Leak Sensor T1 to react at 0.5 mm of water, which is roughly the earliest a contact sensor can act, handy under a dishwasher where a slow leak spreads before it pools. The original works the same way but the newer model spells the figure out.

Google Home path

The Aqara Water Leak Sensor T1 can reach Google Home through an Aqara hub, a route the original Aqara Water Leak Sensor does not offer at all. If Google is your ecosystem, the newer sensor is the one that fits.

Price

The original Aqara Water Leak Sensor is the cheaper of the two, and the gap buys no difference in battery life or water protection. If you only need water detection through a Zigbee hub, the older model still covers it for less.

Shared design

Both the Aqara Water Leak Sensor T1 and the Aqara Water Leak Sensor are 50 by 50 by 15 mm, weigh 18 g, run about two years on a CR2032, carry IP67 protection and need a hub. The newer model changes the pairing options more than the hardware.

Which one to buy if

What owners say

Owners of the Aqara Water Leak Sensor describe a sensor that is quick to catch a drip and easy to forget about afterward, with the tiny 50 mm body sliding under a sink and a CR2032 lasting years. The praise centres on how naturally it fits an Aqara hub, Home Assistant or another Zigbee coordinator, and on detection fast enough to trigger a shutoff valve before water spreads. The same owners are clear about the trade-offs: a Zigbee hub is effectively required, Apple Home and Matter arrive only through an Aqara hub, non-Aqara coordinators can behave inconsistently, and the sensor itself makes no sound and reads no temperature.

Upgrading from the Aqara Water Leak Sensor?

Moving up from the Aqara Water Leak Sensor to the Aqara Water Leak Sensor T1 buys mainly connectivity, not detection. Both are the same size, run about two years on a CR2032, carry IP67 protection and need a Zigbee hub to alert anyone. The T1 pairs directly with a SmartThings hub and can reach Google Home through an Aqara hub, where the original reaches SmartThings and Apple Home only by bridging through an Aqara hub and never touches Google. If your current sensor already works with your hub, there is little reason to change. If you want a cleaner SmartThings pairing or a Google Home path, the T1 is the step up.

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.

  • Aqara Water Leak Sensor
  • Aqara Water Leak Sensor T1

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Frequently Asked Questions

Which is better, the Aqara Water Leak Sensor or the Aqara Water Leak Sensor T1?

The Aqara Water Leak Sensor T1 for platform support, because it pairs directly with SmartThings and can reach Google Home through an Aqara hub. The original Aqara Water Leak Sensor is cheaper and matches it on battery life and IP67 protection.

What is the biggest difference between the Aqara Water Leak Sensor and the Aqara Water Leak Sensor T1?

Connectivity. The Aqara Water Leak Sensor T1 pairs straight into a SmartThings hub and adds a Google Home path through an Aqara hub, while the original reaches SmartThings and Apple Home only through an Aqara hub and has no Google Home route.

Do the Aqara Water Leak Sensor and the Aqara Water Leak Sensor T1 use the same battery?

Yes. Both run on a single CR2032 rated for about two years, and both are IP67 rated and the same 50 by 50 by 15 mm size.

Does the Aqara Water Leak Sensor T1 need an Aqara hub?

Not for Zigbee or SmartThings, since it pairs directly with a SmartThings hub, but an Aqara hub is required for the Apple Home, Google Home and Matter paths. It also works in Home Assistant.

Who should buy the Aqara Water Leak Sensor T1?

A Zigbee home that wants the newest of the two Aqara leak sensors, with direct SmartThings pairing and a Google Home option through an Aqara hub, and a fast 0.5 mm trigger point.

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