HomeKit lets people securely control connected accessories in their homes, such as locks, lights, shades, cameras, garage doors, sensors, and thermostats, from their Apple Watch. These accessories communicate with iCloud or a server to receive instructions and provide status updates. This communication can take place directly or through a device in the home that operates as a hub, such as Apple TV or iPad.
Camera elements let you display content from a connected HomeKit IP camera. Use this element to display still images or streaming video from the camera.
Show a microphone button only if the camera supports bidirectional audio. Don't unnecessarily take screen space away from the camera's imagery.
For developer guidance, see WKInterfaceHMCamera.