Your iPhone 7 or iPhone 8 looks best without scratches and dents, so use an iPhone 7 case or iPhone 8 case to enjoy your iPhone extra long. Choose a back cover if you want to keep your screen free or a book case if you just want a flap to cover your touchscreen. Some sturdy mobile phone cases for the iPhone 7 and iPhone 8 have fall protection. As a result, your smartphone remains intact even if you accidentally drop your device.