There seems to be some sealant on the edges of the two plastic shells.
I've snapped the two empty shells back together and they are still not easy to separate, especially the corners.
I've always used thin guitar picks to separate things.
I don't think that I'd try another Glow4 without a thin metal spudger.
I'm not sure how really waterproof the Glow 4 is. Rain? Sure.
The front bezel is sealed to the display with 4mm double stick tape.
Like most uses of this they are not insanely careful to make sure that the corners meet.
The gaps are up to 3mm (1/8") or so.
Somebody sink one of these in the bathtub and look for bubbles.
