Brands · Head to head

First Alert vs Third Reality

Comparing both brands side by side, ratings, catalog size and every product, so you can see which fits your smart home better.

Updated June 2026
United States flag
First AlertUnited States
3.1/5
Average rating

First Alert is an American home safety brand owned by BRK Brands, specializing in smoke alarms, carbon monoxide detectors, fire extinguishers and combination smoke and CO alarms. Its smart lineup includes Wi-Fi connected smoke and CO alarms that send mobile alerts and work with Google Home, managed through the First Alert app. First Alert focuses on reliable, widely certified fire and CO safety products for the home.

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VS
China flagHigher rated
4.1/5
Average rating

Third Reality, often styled THIRDREALITY, makes affordable Zigbee and Matter smart home accessories such as smart switches, plugs, motion and contact sensors, and night lights. Its devices are popular with SmartThings, Hubitat and Home Assistant users looking for low-cost Zigbee gear. Third Reality focuses on simple, budget-friendly automation building blocks.

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Catalogs

Every product, compared

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