Aqara Water Leak Sensor vs Third Reality Water Leak Sensor

Updated September 2026

Data from Amazon and official Aqara and Third Reality sites.

2026 verdict

Winner

$20.99

The Third Reality Water Leak Sensor takes this matchup of two Zigbee leak sensors, winning on a longer 3-year battery, broader integrations (Google Home, Alexa and Apple HomeKit through the Smart Bridge MZ1, plus Home Assistant), and a loud 120 dB onboard alarm that fires even without a network connection, something the Aqara Water Leak Sensor has no equivalent for. The Aqara Water Leak Sensor is far from beaten: it is cheaper, carries a higher owner rating, and adds an IP67 waterproof rating the Third Reality does not list, in a notably smaller body. Both need a Zigbee hub to run. Choose the Third Reality Water Leak Sensor for a longer battery, a genuinely loud local siren, and wider assistant reach; pick the Aqara Water Leak Sensor for a cheaper, higher-rated, IP67-waterproof sensor that disappears into tight spots.

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Feature	Aqara Water Leak Sensor	Third Reality Water Leak Sensor	Winner
Price	$18.99	$20.99	Aqara Water Leak Sensor
Rating	4.2	4.0	Aqara Water Leak Sensor
Weather Resistance	IP67	NO	Aqara Water Leak Sensor
Battery Life	2 years	3 years	Third Reality Water Leak Sensor
Integrations	Apple HomeKit, Home Assistant	Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant	Third Reality Water Leak Sensor
On Device Alert Sound	NO	YES	Third Reality Water Leak Sensor
Warranty	1 year	1 year	Tie
Connectivity	Zigbee	Zigbee	Tie
Sensors	Water Leak	Water Leak	Tie
Alerts	Water Leak Alerts, Low Battery Alerts	Water Leak Alerts, Low Battery Alerts	Tie
On Device Alert Light	NO	NO	Tie

Aqara

Aqara Water Leak Sensor

$18.99

Buy on Amazon USA

+ Price: $18.99
+ Rating: 4.2
+ Weather Resistance: IP67
- Battery Life: 2 years vs 3 years
- Integrations: Apple HomeKit, Home Assistant vs Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant

Winner

Third Reality

Third Reality Water Leak Sensor

$20.99

Buy on Amazon USA

+ Battery Life: 3 years
+ Integrations: Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant
+ On Device Alert Sound: YES
- Price: $20.99 vs $18.99
- Rating: 4.0 vs 4.2

Frequently Asked Questions

Which is better overall: Aqara Water Leak Sensor or Third Reality Water Leak Sensor?

The Third Reality Water Leak Sensor wins overall on a longer battery, broader integrations via the Smart Bridge MZ1, and a 120 dB onboard alarm. The Aqara Water Leak Sensor is cheaper, higher-rated, and IP67-waterproof.

What is the biggest difference between these two sensors?

A loud local alarm and reach versus size and waterproofing. The Third Reality Water Leak Sensor has a 120 dB siren and wider assistant support, while the Aqara Water Leak Sensor is smaller, IP67-rated, and higher-rated by owners.

Which sensor has an onboard alarm?

The Third Reality Water Leak Sensor, with a 120 dB on-device siren audible from other rooms that works even without a smart home connection. The Aqara Water Leak Sensor has no onboard sound or light.

Which one is more water-resistant?

The Aqara Water Leak Sensor, rated IP67 for direct water contact. The Third Reality Water Leak Sensor lists no weather-resistance rating.

Who should buy the Third Reality Water Leak Sensor?

Buy it for a Zigbee sensor with a long battery, a loud 120 dB alarm, and Google Home, Alexa or HomeKit support through the Smart Bridge MZ1.

Who should buy the Aqara Water Leak Sensor?

Choose it for a cheaper, higher-rated, IP67-waterproof sensor that's small enough to tuck into tight spaces, in an Aqara or HomeKit setup.

Full comparison table

Compare all 32 Water Leak Sensors side by side

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