Does Nest work with HomeKit? Yes and no. We explain how Nest works with your iPhone and what you can do do get Nest to work with HomeKit.
You don’t need HomeKit in order to to use your Nest on your iPhone. The main functionality that HomeKit add’s to smart devices is the ability to use Siri voice commands to control your smart devices like the Nest. But since the Nest is not a HomeKit certified device the Siri voice commands are disabled.
However you can still use your Nest with voice commands using Alexa or Google Home Assistant. There is also an iOS app that integrates with Siri and Nest to allow you voice control of Nest through Siri and will also allow you to control your Nest with voice through your Apple Watch.Read More