If you want to position your iPhone for a photo and then take the photo from a distance, you can use your Apple Watch to view the iPhone camera image and take the photo. You can also use your Apple Watch to set a shutter timer—this gives you time to lower your wrist and raise your eyes when you’re in the shot.
To function as a camera remote, your Apple Watch needs to be within normal Bluetooth range of your iPhone (about 33 feet or 10 meters).
Ask Siri. Say something like: “Take a picture.”
Timer (3-second timer on or off)
Camera (front or rear)
Flash (auto, on, or off)
Live Photo (auto, on, or off)
To see which devices support Live Photos, see the iPhone User Guide.
HDR (on or off)