Cielo vs Shelly 2026: Smart Home Comparison

Cielo

United States

Higher rated

4.5/5

Average rating

Websitecielowigle.com

Twitter@CieloWigle

Cielo is an American company based in Bellevue, Washington that builds smart climate control products for both ducted and ductless HVAC systems. Its Cielo Breez line turns mini-split, window and portable air conditioners that use an infrared remote into wall-mounted smart thermostats, while the Cielo Smart Thermostat range covers central heating and cooling. Everything runs through the free Cielo Home app with no subscription fees, and the devices work with Amazon Alexa, Google Assistant, Siri Shortcuts, SmartThings, IFTTT and Home Assistant.

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Shelly

Bulgaria

4.4/5

Average rating

Websitewww.shelly.com

Twitter@shelly_IoT

AmazonVisit Store

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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