So after damaging my S7 edge screen (on the edge) I am determined to keep my S9 screen protected, I tried a cheap one off ebay, no good. So I spent $35 on a proper one that they installed in store, took about 10 mins (generic phone place in a shopping centre).
The protector is superb, installed nicely etc etc BUT it has a thin black line running down both edges which loses a bit of the screen, you can see the screen before and after the black line, which is bloody annoying!
I returned to the store and complained however they told me this is the only option for these glass protectors the black strip is where the glue is and otherwise if it were completely clear glass you would see the glue instead of the black line which would look worse. Obviously I want the protection so I walked away and said "Disappointing, but whatever…"
I wondered if anyone has any similar issues or any advice on something better.. if so i'll be going back to get a refund.
Look up Whitestone Dome screen protectors. Uses liquid as the adhesive and it covers the whole screen rather than just the edges. Costs a fair bit more though.