I started doing mine 25 minutes ago... I took my time... made sure I didn't have to do anything else at the time... and the edges are starting to stick already... its almost totally clear already! I thought maybe I messed up a side from my fingers... nope... thats getting clear too with some more thumb pressing! Great product!
5 stars. I have the Fitbit Sense and Ionic. These are very easy to install, last a long time, do not cost much, and really protect the device. From start to finish it takes maybe 10 minutes. Yes, the screen protector moves around a lot when you 1st place it on the device but that is supposed to happen. Get it centered and just leave it for a few minutes. Once it gets tacky you can squeeze out any air bubbles and press down the edges. And no, I did not get mine for free, I paid full price on Amazon.
So, you have to let the watch sit for a few hours once or twice a year so your screen's not all gouged up. #fwp I'm a handyman and I got 6 months out of the last one. Screen looks perfect underneath. That's a win in my book. You can actually get away with letting it sit for an hour or two if you're careful. But don't blame the manufacturer of you bump it on a door frame while it's still curing.