Use Apple Watch for photos: Frame a group photo with your iPhone Camera. Then join the group and use the Camera app on your Apple Watch to preview and capture the photo.
Remove certain cases during charging: Charging your device when it’s inside certain styles of cases may generate excess heat, which can affect battery capacity. If you notice that your device gets hot when you charge it, take it out of its case first. For Apple Watch Edition models, make sure the cover of the magnetic charging case is off.