Brands · Head to head

AirGradient vs Shelly

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
AirGradient logo
AirGradientThailand flagThailand
N/A
No ratings yet

AirGradient builds open-source indoor and outdoor air quality monitors that track PM2.5, CO2, temperature, humidity and other pollutants. The company is known for its open hardware and firmware, letting users build, repair and integrate the monitors with platforms like Home Assistant and its own dashboard. AirGradient appeals to people who want transparent, data-driven air quality monitoring rather than a closed black box.

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VS
Shelly logo
ShellyBulgaria flagBulgaria
4.4/5
Average rating

Shelly, based in Bulgaria, makes compact smart relays, switches, plugs and sensors that fit behind existing wall switches and outlets to automate almost any home wiring. Its devices are popular with advanced users for offering local control, a built-in web interface, MQTT and broad integration with Home Assistant, Alexa and Google Home. Shelly is a favorite for retrofitting smart control without replacing fixtures.

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