Locate Family Sharing members’ devices using Find My iPhone and Find My Mac
When you join a family, you can help other family members locate their Mac computer, iOS device, Apple Watch (watchOS 3 or later), and AirPods by using Find My iPhone on iCloud.com from your web browser. See Use Find My Mac to locate a missing Mac.
To locate your family’s devices:
Mac computers must have Find My Mac selected in iCloud preferences.
iOS devices must have Find My [device] turned on (in Settings > iCloud).
Apple Watch must have watchOS 3 or later.
By default, you can see the location of the devices for each family member. If someone has stopped sharing, they must turn sharing back on for you to locate a device. See Stop sharing your location with others in your Family Sharing group.
Before you can help locate your family’s devices, you must join a family.