Zagg Invisible Shield HDX vs. Glass

The appeal of the HDX is that it's supposed to feel like glass rather than what you'd normally expect a plastic screen protector to feel like, and maybe they don't chip or crack like tempered glass. Also, if you happen to be using a phone with curved edges (iPhone 6/6+ and Nexus 6 for example), the flexible plastic ones have edge-to-edge cover, whereas the glass ones have to be cut a little short around the edges or you'll get lifting all around the perimeter. However, Zagg is overrated and overpriced.

I get tempered glass screen protectors under $10. I've actually tried 4 different brands for my Nexus 6 so far because they all have different cuts. Companies have been trying to get the fit right. So far the best is a $7 TG screen protector from Jelly Comb.