I received the armorsuit screen protector for my SS 44mm Series 4 last night after a week of waiting for it to arrive (I didn’t use the watch until I installed the protector), it adhered well, I let it dry overnight and it’s good to go. It’s a must have for me and I used the armorsuit protectors on every Apple Watch gen. The nature of my work has to do with abrasive materials therefore A screen protector to protect the sapphire watchface is a must, I could care less about the SS Body scratching up but I’d like to keep the watchface flawless and this screen protector does just that. Can’t even tell it’s installed. I will say this again though, it is very hard to install but once it’s installed It’s there to stay!