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Want a phone screen that really won't break? Make it out of sapphire. Check it out:
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Jay Morgan's profile photoDon Felipe's profile photoJames Arceo's profile photoKam Siu's profile photo
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My Tissot watch has sapphire on it. 
Kam Siu
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the really good watches will use sapphire face, which is several time more durable than mineral base watches. 
 
Interesting that iphone is used in the picture 
 
+Don Felipe Because the iPhone was used for the demo. The sapphire sheet was applied over the iphone's screen.
 
Sapphire is more scratch resistant, but I thought it was actually more brittle than a mineral crystal, right?  I still opt for a saphire crystal in my watch.  But I try not to really slam it against anything, and there is little chance of dropping it from shoulder-height.
 
Hmm you think Corning will one day be looking over their shoulder ?
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