4 ms·
Sapphire on the higher end ones, "Ion-X" (gorilla glass) on the cheaper ones. Sapphire is more expensive than chemically strengthened glass.
by nimish 5y ago
Sapphire on the higher end ones, "Ion-X" (gorilla glass) on the cheaper ones.
Sapphire is more expensive than chemically strengthened glass.
- ahonhn 5y agoSo "Sapphire & Steel" Incidentally the initial working title for the UK science fiction series bearing that name was "The Time Menders" :-)