Updated July 2026
Data from Amazon and official YoLink site.
2026 verdict
YoLink Water Leak Sensor 4 edges out YoLink Water Leak Sensor 1 in 2026, led by rating, sensors, and alerts. It has the clearer edge on rating, sensors, and alerts, and it stays ahead on on device alert sound. YoLink Water Leak Sensor 1 can still be the right pick, but only if price and weather resistance outweigh the wider strengths of YoLink Water Leak Sensor 4. For most setups, YoLink Water Leak Sensor 4 is the smarter buy.
| Feature | YoLink Water Leak Sensor 1 | YoLink Water Leak Sensor 4 | Winner |
|---|---|---|---|
| Price | $16.99 | $19.99 | YoLink Water Leak Sensor 1 |
| Rating | 4.6 | 4.8 | YoLink Water Leak Sensor 4 |
| Weather Resistance | IP68 | IP66 | YoLink Water Leak Sensor 1 |
| Sensors | Water Leak | Water Leak, Temperature | YoLink Water Leak Sensor 4 |
| Alerts | Water Leak Alerts, Low Battery Alerts | Water Leak Alerts, Temperature Alerts, Freeze Temperature Alerts, Low Battery Alerts | YoLink Water Leak Sensor 4 |
| On Device Alert Sound | NO | YES | YoLink Water Leak Sensor 4 |
| Warranty | 2 years | 2 years | Tie |
| Battery Life | 5 years | 5 years | Tie |
| Connectivity | Other | Other | Tie |
| Integrations | Alexa, Home Assistant, IFTTT | Alexa, Home Assistant, IFTTT | Tie |
| On Device Alert Light | YES | YES | Tie |
$16.99
- + Price: $16.99
- + Weather Resistance: IP68
- - Rating: 4.6 vs 4.8
- - Sensors: Water Leak vs Water Leak, Temperature
Winner
17% OFF
$19.99
$23.99
- + Rating: 4.8
- + Sensors: Water Leak, Temperature
- + Alerts: Water Leak Alerts, Temperature Alerts, Freeze Temperature Alerts, Low Battery Alerts
- - Price: $19.99 vs $16.99
- - Weather Resistance: IP66 vs IP68
Frequently Asked Questions
Which is better overall: YoLink Water Leak Sensor 1 or YoLink Water Leak Sensor 4?
YoLink Water Leak Sensor 4 has the stronger overall profile in this comparison, especially for rating, sensors, and alerts.
What is the biggest difference between YoLink Water Leak Sensor 1 and YoLink Water Leak Sensor 4?
Price is one of the clearest differences: YoLink Water Leak Sensor 1 lists $16.99, while YoLink Water Leak Sensor 4 lists $19.99.
Which one looks better on price?
YoLink Water Leak Sensor 1 is listed at $16.99, while YoLink Water Leak Sensor 4 is listed at $19.99. YoLink Water Leak Sensor 1 (better spec).
Who should buy YoLink Water Leak Sensor 1?
Choose YoLink Water Leak Sensor 1 if your priority is price and weather resistance and that matters more than rating.
Who should buy YoLink Water Leak Sensor 4?
Choose YoLink Water Leak Sensor 4 if your priority is rating and sensors and that matters more than price.
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