Eve Water Guard vs Tapo T300 comparison

Updated July 2026

Data from Amazon and official Eve and TP-Link sites.

2026 verdict

A hub-based rival takes this one: the Tapo T300 beats the Eve Water Guard on price and on integrations, reaching Google Home and Alexa through a Tapo Hub in addition to its own water-leak alerts, while running on batteries rather than requiring wall power. The Eve Water Guard's remaining strength is its connectivity story, spanning Apple HomeKit and Home Assistant via Thread, plus its extendable sensing cable that can stretch across an entire appliance run rather than sensing from a fixed puck. Buyers who want Alexa or Google Home support at a lower price, and don't mind adding a Tapo Hub, should choose the Tapo T300, while HomeKit and Thread households that value wide-area cable coverage should stay with the Eve Water Guard.

Feature	Eve Water Guard	Tapo T300	Winner
Price	$78.99	$19.99	Tapo T300
Connectivity	Bluetooth, Thread Protocol	None	Eve Water Guard
Integrations	Apple HomeKit, Home Assistant	Google Home, Alexa, Home Assistant	Tapo T300
Weather Resistance	YES	IP67	Tie
Rating	4.6	4.6	Tie
Warranty	1 year	1 year	Tie
Sensors	Water Leak	Water Leak	Tie
Alerts	Water Leak Alerts	Water Leak Alerts	Tie
On Device Alert Sound	YES	YES	Tie
On Device Alert Light	YES	YES	Tie

Eve

Eve Water Guard

28% OFF

$78.99

$109.95

Buy on Amazon USA

+ Connectivity: Bluetooth, Thread Protocol
- Price: $78.99 vs $19.99
- Integrations: Apple HomeKit, Home Assistant vs Google Home, Alexa, Home Assistant

Winner

TP-Link

Tapo T300

$19.99

Buy on Amazon USA

+ Price: $19.99
+ Integrations: Google Home, Alexa, Home Assistant
- Connectivity: None vs Bluetooth, Thread Protocol

Frequently Asked Questions

Which is better overall: Eve Water Guard or Tapo T300?

The Tapo T300 wins overall on price and integrations, reaching Google Home and Alexa through a Tapo Hub. The Eve Water Guard still leads on connectivity options and its extendable sensing cable.

What is the biggest difference between the Tapo T300 and the Eve Water Guard?

Ecosystem and power source. The Tapo T300 is a battery-powered sensor that needs a Tapo Hub to reach Google Home and Alexa, while the Eve Water Guard is wired and built around Apple HomeKit and Thread with a cable that covers a much wider area.

Which sensor reaches more smart home integrations?

The Eve Water Guard covers more named connectivity paths, supporting Apple HomeKit and Home Assistant via Thread, whereas the Tapo T300 needs a separate Tapo Hub and skips HomeKit and SmartThings support entirely.

Which one has a longer sensing range?

The Eve Water Guard does. Its sensing cable ships at 6.5 ft and can extend up to 490 ft, letting it trace an entire appliance run, while the Tapo T300 senses only from its own fixed unit with no cable option.

Who should buy the Tapo T300?

Choose it if you want the more affordable option and already run Google Home, Alexa, or other Tapo and Kasa devices alongside a Tapo Hub.

Who should buy the Eve Water Guard?

Pick it if you're in an Apple HomeKit or Thread household and want a wired sensor whose cable can cover a full kitchen or laundry run instead of one spot.

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