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).
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 PDF