Shelly Flood Gen4 vs SwitchBot Water Leak Detector comparison

Updated July 2026

Data from Amazon and official Shelly and SwitchBot sites.

2026 verdict

Multi-protocol support gives the Shelly Flood Gen4 the win over the SwitchBot Water Leak Detector in this water leak sensor comparison, thanks to a longer warranty and wider connectivity and sensor coverage that adds Zigbee and Matter to WiFi and Bluetooth, plus more supported alerts overall. The SwitchBot Water Leak Detector answers with a lower price, a higher owner rating, and better weather resistance, making it the more affordable, better-reviewed pick for buyers who don't need the Shelly's extra protocols. Both sensors include an on-device alert sound and light. Go with the Shelly Flood Gen4 for the longer warranty and broadest connectivity; choose the SwitchBot Water Leak Detector if price, rating and weatherproofing matter more.

Feature	Shelly Flood Gen4	SwitchBot Water Leak Detector	Winner
Price	$39.99	$16.49	SwitchBot Water Leak Detector
Rating	4.2	4.5	SwitchBot Water Leak Detector
Warranty	3 years	1 year	Shelly Flood Gen4
Weather Resistance	IP44	IP67	SwitchBot Water Leak Detector
Connectivity	2.4 GHz WiFi, Bluetooth, Zigbee	2.4 GHz WiFi, Bluetooth	Shelly Flood Gen4
Sensors	Water Leak, Temperature	Water Leak	Shelly Flood Gen4
Alerts	Water Leak Alerts, Temperature Alerts, Freeze Temperature Alerts	Water Leak Alerts	Shelly Flood Gen4
Battery Life	2 years	2 years	Tie
Integrations	Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter	Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, IFTTT	Tie
On Device Alert Sound	YES	YES	Tie
On Device Alert Light	YES	YES	Tie

Winner

Shelly

Shelly Flood Gen4

$39.99

Buy on Amazon USA

+ Warranty: 3 years
+ Connectivity: 2.4 GHz WiFi, Bluetooth, Zigbee
+ Sensors: Water Leak, Temperature
- Price: $39.99 vs $16.49
- Rating: 4.2 vs 4.5

SwitchBot

SwitchBot Water Leak Detector

$16.49

Buy on Amazon USA

+ Price: $16.49
+ Rating: 4.5
+ Weather Resistance: IP67
- Warranty: 1 year vs 3 years
- Connectivity: 2.4 GHz WiFi, Bluetooth vs 2.4 GHz WiFi, Bluetooth, Zigbee

Frequently Asked Questions

Which is better overall, the Shelly Flood Gen4 or the SwitchBot Water Leak Detector?

The Shelly Flood Gen4 wins overall with a longer warranty and wider connectivity and sensor support. The SwitchBot Water Leak Detector is cheaper, carries a higher owner rating, and offers better weather resistance.

What is the main difference between the Shelly Flood Gen4 and the SwitchBot Water Leak Detector?

Protocol breadth versus value. The Shelly Flood Gen4 adds Zigbee and Matter on top of WiFi and Bluetooth with a longer warranty, while the SwitchBot Water Leak Detector is cheaper, better rated, and more weather resistant.

Do both have a local alarm sound and light?

Yes, both the Shelly Flood Gen4 and the SwitchBot Water Leak Detector include an on-device alert sound and light, so local alerting isn't a differentiator here.

Which one is more weather resistant?

The SwitchBot Water Leak Detector carries the stronger weather-resistance rating of the two.

Who should buy the Shelly Flood Gen4?

Buyers who want the longest warranty and the most connectivity options, including Zigbee and Matter alongside WiFi.

Who should buy the SwitchBot Water Leak Detector?

Buyers who want the cheaper, better-rated, more weather-resistant sensor and don't need Zigbee or Matter support.

More Water Leak Sensors

Top Water Leak Sensors to compare next

Compare smart water leak sensors by power source, connectivity, water and temperature alerts, weather resistance, battery life, integrations, and automation features.

Compare Water Leak Sensors