Does the Sonos Era 300 work with HomeKit, Alexa, and Google Home?
Era 300 is a Dolby Atmos speaker with Wi-Fi 6 and Bluetooth 5.3.
It works with Sonos Voice Control, Alexa and AirPlay 2 and runs on the Sonos app. It suits Alexa users, with native support through the maker's cloud. Home Assistant users reach it through an integration (the maker's cloud).
How the device gets into the platform on this route. The headline is the best route: local before cloud, direct before bridged, core before community. The methodology page lists every level.