I picked up 2 sets of protectors as they come either with TPU/PET for the 1st/2nd screen, or Glass for both, but Glass on the 1st screen seems problematic more than anything.

I got the GOBUKEE Glass screen kit for the 2nd screen glass it includes and installed it which fits perfectly and feels soo good to use. I also got the GOBUKEE TPU/PET kit for the TPU cover for the 1st screen which doesn't feel near as good as glass, but does have pretty good coverage and I feel that TPU fits curved screens the best, doesn't interfere with the fingerprint sensor, and hopefully being a bit softer/rubbier, can help incase of any small falls that I hope to never have. I also got the Spigen case for the Wing and installed it without taking the covers off the adhesive strips as the case holds on perfectly fine without using those. I like to remove the case occasionally to clean the phone and don't care to permanently seal the case to the phone.

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The installation process for the TPU screen protector from GOBUKEE is a bit of a learning curve, but if you do it correctly, it goes on extremely well and without any wetness like you usually use for other TPU installs. The trick is you take off the 1st layer, line up the protector, then you pull up the 2nd layer tab and use the squeegee to push the protector down from the split in the back while it separates from the half cover that you are holding up with that tab. If you have any questions do watch the video it provides links too, but once you get the idea of how its supposed to go on, it actually goes on really easily. And with all TPU installs, you may have a few bubbles after, just softly try to push them out with the squeegee or your finger but don't try to scrape too hard which can scratch the TPU. You can also just be patient and eventually they will dissipate on their own over time.

Remember also, clean microfiber and a can of compressed air are super helpful for cleaning all the dust off, and keeping it off before applying the protector.