Review on IQ Shield Clear Film Screen Protector Bundle (6-Pack) for Fitbit Versa 3 / Fitbit Sense - Anti-Bubble Protection by Robert Aiono

I've used them very successfully in the past on my old Fitbit Versa and my old Fitbit Sense and really liked them. I then gave my Fitbit Sense to my adult son who had heart problems and was told he needed a wearable that could monitor his heart rate. I finally got a new Fitbit Sense for myself so I had to protect my screen with one of the IQ Shields and I ordered this box which I have now. I'm blown away by the results. I've tried 3 times and all 3 times within 24 hours the screen protector has shifted and blistered (see photo). The one I installed on my son's Fitbit has been there for almost a year with no movement or blisters and is fully bonded even after all this time and I have had the same protector on my Fitbit Versa for years and he had it never had a problem so i know it's not because i don't know how to install things. I followed all the instructions in the installation video and installed the new protector on my new Fitbit the same way. It's so frustrating because I've been very happy with them in the past. At the moment I have no idea what to do to protect the screen of my new Fitbit Sense. I don't know if that particular box had defective protectors or if they are all like that now. I would ask for an exchange to make sure it was just a bad set but they want me to send the bad ones back and it's just not worth the postage. I guess I'll have to eat up the $9.95 I spent on this set of useless screen protectors and try to find another way to protect my screen.