Cielo Breez Max vs Nest Learning Thermostat (4th gen)

The Nest Learning Thermostat (4th gen) wins overall, ahead on warranty, included accessories, connectivity, integrations, sensors and alerts. The Cielo Breez Max keeps a higher owner rating, a lower price and built-in voice control, but the two control very different kinds of HVAC equipment.

The Nest Learning Thermostat (4th gen) wires into a ducted furnace, heat pump or central air handler and needs a C-wire to run. The Cielo Breez Max controls a ductless mini-split, window unit or portable air conditioner over infrared, with no wiring into a furnace at all.

No. The Nest Learning Thermostat (4th gen) supports Matter, which is also how it reaches the Apple Home app. The Cielo Breez Max has no Matter path and no HomeKit profile, offering Siri Shortcuts instead.

The Nest Learning Thermostat (4th gen) ships with a Nest temperature sensor for balancing rooms. The Cielo Breez Max includes no remote sensor and does not support adding one; it reads only its own built-in temperature and humidity sensor.

Google-ecosystem homes with a wired, ducted furnace or heat pump who want a self-learning schedule, a bundled remote sensor and a striking animated display.

Anyone whose home is cooled by a ductless mini-split, window unit or portable air conditioner with an infrared remote, since the Nest Learning Thermostat (4th gen) cannot control that hardware.