Updated June 2026
Data from Amazon and official Aeotec and Shelly sites.
2026 verdict
For most buyers in 2026, Shelly Flood Gen4 is the safer pick over Aeotec Water Sensor 7 Pro because of price, warranty, and weather resistance. The comparison tilts its way because of price, warranty, and weather resistance, with connectivity and integrations keeping it in front. Aeotec Water Sensor 7 Pro remains a niche alternative if battery life matters more than the rest of the comparison. That makes Shelly Flood Gen4 the clearer recommendation in 2026.
| Feature | Aeotec Water Sensor 7 Pro | Shelly Flood Gen4 | Winner |
|---|---|---|---|
| Price | $47.95 | $39.99 | Shelly Flood Gen4 |
| Warranty | 1 year | 3 years | Shelly Flood Gen4 |
| Weather Resistance | IP20 | IP44 | Shelly Flood Gen4 |
| Battery Life | 3 years | 2 years | Aeotec Water Sensor 7 Pro |
| Connectivity | Z-Wave | 2.4 GHz WiFi, Bluetooth, Zigbee | Shelly Flood Gen4 |
| Integrations | Samsung SmartThings, Home Assistant | Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter | Shelly Flood Gen4 |
| On Device Alert Sound | NO | YES | Shelly Flood Gen4 |
| On Device Alert Light | NO | YES | Shelly Flood Gen4 |
| Rating | 4.2 | 4.2 | Tie |
| Sensors | Water Leak, Temperature | Water Leak, Temperature | Tie |
| Alerts | Water Leak Alerts, Temperature Alerts, Freeze Temperature Alerts | Water Leak Alerts, Temperature Alerts, Freeze Temperature Alerts | Tie |
$47.95
- + Battery Life: 3 years
- - Price: $47.95 vs $39.99
- - Warranty: 1 year vs 3 years
Winner
$39.99
- + Price: $39.99
- + Warranty: 3 years
- + Weather Resistance: IP44
- - Battery Life: 2 years vs 3 years
Frequently Asked Questions (FAQ)
Which is better overall: Aeotec Water Sensor 7 Pro or Shelly Flood Gen4?
Shelly Flood Gen4 has the stronger overall profile in this comparison, especially for price, warranty, and weather resistance.
What is the biggest difference between Aeotec Water Sensor 7 Pro and Shelly Flood Gen4?
Price is one of the clearest differences: Aeotec Water Sensor 7 Pro lists $47.95, while Shelly Flood Gen4 lists $39.99.
Which one looks better on price?
Aeotec Water Sensor 7 Pro is listed at $47.95, while Shelly Flood Gen4 is listed at $39.99. Shelly Flood Gen4 (better spec).
Who should buy Aeotec Water Sensor 7 Pro?
Choose Aeotec Water Sensor 7 Pro if your priority is battery life and that matters more than price.
Who should buy Shelly Flood Gen4?
Choose Shelly Flood Gen4 if your priority is price and warranty and that matters more than battery life.
