Apple Watch Sport's non-sapphire screen can handle keys and knives, but not sandpaper

The Apple Watch Sport doesn't have the same fancy sapphire display as its more expensive counterparts. But should you be worried?

Possibly. Sapphire glass is, after all, virtually unscratchable by anything other than a diamond.

The Apple Watch Sport's chemically-treated Ion-X glass
Apple Watch Sport's non-sapphire screen can handle keys and knives, but not sandpaper