I purchased the Hybrid Glass NanoArmour Apple Watch Series 7 Screen Protector for my 45mm new watch and I feel confident that it will save me any damage I might do to it in the future. I used the plastic guide which was supplied to install it, I was tempted to remove the protector it and try again but after a few attempts to smooth any trapped air bubbles they then disappeared a day later. So far I very happy with this product and also that it has a lifetime warranty if needed. I can swipe the screen as normal as the protector does not affect anything by being in place.
45mm