23% OFF
$53.99
$69.99
Updated November 2026
Data from the official Govee and Heiman sites.
2026 verdict
Local sirens for a drip under the sink, yet the Heiman Smart Water Leakage Sensor is the pick when the battery should last.
It is rated for 5 years on a CR123A, the body is IP67, and it has a local sound and light, 2.4 GHz Wi-Fi, Home Assistant and partial SmartThings support. The GoveeLife Water Leak Detector 2 brings a loud alarm and light too, an IP66 body, two AAA cells rated for 2 years, and a gateway in the box. Alexa, Google Home, Apple Home, SmartThings and Matter are not supported on that Govee sensor. Choose the Heiman Smart Water Leakage Sensor for Home Assistant and fewer battery swaps. Choose the GoveeLife Water Leak Detector 2 when the included gateway and the Govee app are what you want.
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| Feature | GoveeLife Water Leak Detector 2 | Heiman Smart Water Leakage Sensor | Winner |
|---|---|---|---|
| Price | $53.99 | $16.99 | Heiman Smart Water Leakage Sensor |
| Rating | 4.4 | 4.2 | GoveeLife Water Leak Detector 2 |
| Weather Resistance | IP66 | IP67 | Heiman Smart Water Leakage Sensor |
| Battery Life | 2 years | 10 years | Heiman Smart Water Leakage Sensor |
| Sensors | Water Leak | Water Leak, Temperature | Heiman Smart Water Leakage Sensor |
| Alerts | Water Leak Alerts | Water Leak Alerts, Freeze Temperature Alerts, Low Battery Alerts | Heiman Smart Water Leakage Sensor |
| Warranty | 1 year | 1 year | Tie |
| Connectivity | Other | Other | Tie |
| On Device Alert Sound | YES | YES | Tie |
| On Device Alert Light | YES | YES | Tie |
What the differences mean
Battery rating
The Heiman Smart Water Leakage Sensor is rated for 5 years on a CR123A, and low-battery alerts are supported. The GoveeLife Water Leak Detector 2 is rated for 2 years on two AAA cells. Low-battery alerts are not documented on the Govee. If the point of the sensor is to forget it under a water heater, the 5-year rating is the difference you will feel.
Gateway in the box or not
The GoveeLife Water Leak Detector 2 lists a gateway as required and included. Its own description calls that link LoRa, for reach into a basement. The Heiman Smart Water Leakage Sensor lists 2.4 GHz Wi-Fi as supported, but owners say app and remote alerts still need a Heiman gateway that is not in every single-sensor box. The local Heiman alarm works without that gateway. The Govee system does not report if its gateway is unplugged.
Platforms beyond the app
Home Assistant is supported on the Heiman Smart Water Leakage Sensor, and SmartThings is partial. Alexa, Apple Home and Matter are not supported. Google Home is not documented. The GoveeLife Water Leak Detector 2 does not support Alexa, Google Home, Apple Home, SmartThings or Matter. Home Assistant is not documented for it either, so it should not be counted as a Home Assistant sensor from this sheet.
Sealing, and what they both share
The Heiman Smart Water Leakage Sensor is IP67. The GoveeLife Water Leak Detector 2 is IP66. Both are weather-resistant pucks with a sound and a light, both detect water only, and both support automations inside their own setup. Neither includes a sensor cable, and both warranties are 1 year. The gap that is not here is temperature: neither sensor reads it.
Which one to buy if
- you want Home Assistant to see the leak and a long battery life
The Heiman Smart Water Leakage Sensor supports Home Assistant and is rated for 5 years, with an IP67 body and a local alarm.
- you want the gateway included and a closed app is fine
The GoveeLife Water Leak Detector 2 ships with its gateway and a loud local alarm, without Alexa, Google Home or Apple Home.
- the sensor may get splashed, not just sit in damp air
IP67 on the Heiman Smart Water Leakage Sensor is the tighter seal. The Govee detector is IP66, which is still a wet-room rating, just a step down.
- remote alerts have to work on day one without extra hardware
The Govee gateway is listed as included. Heiman owners say a sensor-only purchase has a local alarm only until a separate gateway arrives.
23% OFF
$53.99
$69.99
- + Rating: 4.4
- - Price: $53.99 vs $16.99
- - Weather Resistance: IP66 vs IP67
Winner
15% OFF
Prime exclusive deal$16.99
$19.99
- + Price: $16.99
- + Weather Resistance: IP67
- + Battery Life: 10 years
- - Rating: 4.2 vs 4.4
What owners say
Both groups praise a loud local alarm that goes off from a few drops, and both warn that a gateway sits in the middle. GoveeLife Water Leak Detector 2 owners describe a guided app setup, a siren they can hear through the house, and alerts by app, email and text that caught real leaks, from a condensate line to a washer hose. They also accept a closed system: nothing reaches Alexa, Google Home or Apple Home, and the gateway has to stay powered. Heiman Smart Water Leakage Sensor owners praise the same stand-alone beep, a compact IP67 body and a simple battery swap. Their complaint is that a sensor-only box does not include the gateway, so remote alerts are missing until that extra piece is bought. Partial SmartThings support is another limit they run into.
Frequently Asked Questions
Which is better overall: GoveeLife Water Leak Detector 2 or Heiman Smart Water Leakage Sensor?
The Heiman Smart Water Leakage Sensor on battery life, IP67 and Home Assistant. It is rated for 5 years against 2 years, with partial SmartThings. The GoveeLife Water Leak Detector 2 is the one that includes its gateway and stays inside the Govee app.
What is the biggest difference between the GoveeLife Water Leak Detector 2 and the Heiman Smart Water Leakage Sensor?
Battery and openness. The Heiman sensor is rated for 5 years, lists 2.4 GHz Wi-Fi, and supports Home Assistant. The Govee detector is rated for 2 years, needs its included gateway, and does not support Alexa, Google Home, Apple Home, SmartThings or Matter. Both have a local sound and light.
Do the GoveeLife Water Leak Detector 2 and the Heiman Smart Water Leakage Sensor need a gateway?
The Govee detector lists a gateway as required and included. The Heiman spec lists 2.4 GHz Wi-Fi, but owners report that remote app alerts need a Heiman gateway that is not always in the box. The Heiman local alarm works without it.
Does either the GoveeLife Water Leak Detector 2 or the Heiman Smart Water Leakage Sensor sense temperature?
No. Both are leak-only. Temperature, freeze alerts and tilt are not supported on the GoveeLife Water Leak Detector 2 or the Heiman Smart Water Leakage Sensor.
Who should buy the GoveeLife Water Leak Detector 2?
Buy the GoveeLife Water Leak Detector 2 if you want a loud leak alarm, an included gateway and app, email and text alerts, and you do not need Alexa, Google Home, Apple Home or SmartThings.
Who should buy the Heiman Smart Water Leakage Sensor?
Buy the Heiman Smart Water Leakage Sensor for a 5-year rating, an IP67 body, a local siren and Home Assistant. Confirm whether the gateway is in your box if you need phone alerts, because owners say a sensor-only pack does not include it.
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