Updated July 2026
Data from Amazon and official Flume and YoLink sites.
2026 verdict
YoLink Water Leak Sensor 4 is the more complete option versus Flume 2 Smart Water Monitor in 2026, helped most by price, rating, and integrations. What pushes it ahead is price, rating, and integrations, and sensors and alerts keep the advantage from looking narrow. Choose Flume 2 Smart Water Monitor only if connectivity matters more to you than the broader advantage from YoLink Water Leak Sensor 4. In practical terms, YoLink Water Leak Sensor 4 is the easier product to recommend.
| Feature | Flume 2 Smart Water Monitor | YoLink Water Leak Sensor 4 | Winner |
|---|---|---|---|
| Price | $189.00 | $19.99 | YoLink Water Leak Sensor 4 |
| Rating | 4.0 | 4.8 | YoLink Water Leak Sensor 4 |
| Connectivity | 2.4 GHz WiFi, Other | Other | Flume 2 Smart Water Monitor |
| Integrations | Google Home, Alexa | Alexa, Home Assistant, IFTTT | YoLink Water Leak Sensor 4 |
| 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 |
| On Device Alert Light | NO | YES | YoLink Water Leak Sensor 4 |
| Weather Resistance | YES | IP66 | Tie |
5% OFF
$189.00
$199.00
- + Connectivity: 2.4 GHz WiFi, Other
- - Price: $189.00 vs $19.99
- - Rating: 4.0 vs 4.8
Winner
17% OFF
$19.99
$23.99
- + Price: $19.99
- + Rating: 4.8
- + Integrations: Alexa, Home Assistant, IFTTT
- - Connectivity: Other vs 2.4 GHz WiFi, Other
Frequently Asked Questions
Which is better overall: Flume 2 Smart Water Monitor or YoLink Water Leak Sensor 4?
YoLink Water Leak Sensor 4 has the stronger overall profile in this comparison, especially for price, rating, and integrations.
What is the biggest difference between Flume 2 Smart Water Monitor and YoLink Water Leak Sensor 4?
Price is one of the clearest differences: Flume 2 Smart Water Monitor lists $189.00, while YoLink Water Leak Sensor 4 lists $19.99.
Which one looks better on price?
Flume 2 Smart Water Monitor is listed at $189.00, while YoLink Water Leak Sensor 4 is listed at $19.99. YoLink Water Leak Sensor 4 (better spec).
Who should buy Flume 2 Smart Water Monitor?
Choose Flume 2 Smart Water Monitor if your priority is connectivity and that matters more than price.
Who should buy YoLink Water Leak Sensor 4?
Choose YoLink Water Leak Sensor 4 if your priority is price and rating and that matters more than connectivity.
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