Your Apple Watch 45mm will look good and stay scratch-resistant for longer with a screen protector. You stick a screen protector over the glass plate of your Apple Watch. This extra layer absorbs every fall, so your watch will look good for longer. This way, you don't have to worry if you scrape your smartwatch against a wall or accidentally drop it. The antibacterial layer keeps the screen protector free of grease. For the best protection, choose a glass screen protector. Glass is harder than plastic, so it's extra sturdy.