SpigenGLAStR EZ Fit [2-Pack] designed for Samsung Galaxy Watch 4 (40mm) Tempered Glass Screen Protector with Auto Align technology tray

This is the most premium glass protector available for the galaxy watch 4 40mm.Almost everything is perfect in this product except long term use.Application is seamless and bubble free, touch is really great and works perfectly with the spigen case.But the problem started appearing after a month of use.It started developing bubbles. I was not expecting this from a premium glass protector and certainly not within a month.Ended up returning it. Amazon care and Spigen care were quick to respond and refund.I wish the bubble wouldn't have appeared, otherwise i was happy about the product

The entire method of the screen installation is commendable, using a templated shell during installation provided perfect, easy hassle free installation. However you're literally paying for the plastic shell provided for the installation which the actual glass is wayyy smaller than the screen size leaving a hideous 2-3mm gap. I recently paid for a 4 pack (instead) of 2 for only £8 and they fit perfectly by the mm.

OMG! I would never have tried this but it was the only tempered glass protector at the time for the GW4. I'm just so pleased with it. Its perfectly aligned, no bubbles,no dust,fits perfectly around the spigen case. So much so it looks like watch has no case or SP on it.

This is the easiest to fit screen protector I have ever bought. There are two in packet and fit perfectly with no bubbles. Works well with the Spigen Bezel / outside edge protector (or what ever it is called).Only thing is it is very over priced. But saying that It done the job perfectly, and if had to, would buy again as long as not any more expensive!

To install and protect, a recent accident reminded me how good these are, caught my watch it cracked the screen, lucky it was on the prior spigen protector, screen was fine.