Aqara G4 is a unique video doorbell that can be wired or battery-powered. It is also the first battery-powered option to work with Apple’s HomeKit Secure Video and supports streaming to Google and Alexa smart displays, featuring local AI used for facial recognition alerts, automations, and much more Upgrade your home security with Aqara Smart Video Doorbell G4, featuring local face recognition and compatibility with Apple HomeKit, Google, and Alexa. Enjoy free cloud and local storage, two-way talk, and a 162° wide-angle field of view, all in a battery and wired 2-in-1 design. Plus, with unique features like voice-changing dialogue and customizable ringtones, G4 offers more privacy and convenience than ever before.