I can’t remember if we’re still mad at Consumer Reports for Antennagate but they seem to be doing a thorough job at testing the Apple Watch as evidenced in the video below. Notable from their Day 1 tests is that the Apple Watch Sport screen does scratch but only after going pretty far down the Moh’s hardness scale (7-rated) into the unlikely to ever happen category.
The Sapphire Apple Watch however wouldn’t scratch under any circumstances, though it doesn’t appear that Consumer Reports had a diamond pick to test it against. Regardless, for intents and purposes, you likely will never see a scratch on the face of the Apple Watch (the back is a different matter)…
So how did Apple’s watches fare? The sapphire crystal performed as expected, which is to say very well. It survived a 9-rated pick from our kit. The Apple Watch Sport made it up to a 7-rated pick without damage, but was scratched by an 8-rated pick.
So the face of the Apple Watch is definitely harder than that of the Apple Watch Sport. But the performance of the hardened glass of the Sport model is pretty impressive as well. An 8 on the Mohs scale is equivalent to topaz, just one step below sapphire, and it means that it takes quite an abrasive material to scratch Apple’s glass. (We also tried a completely unscientific attempt on the Sport model with a steel key, and it didn’t scratch the glass.)
Consumer Reports also did some heart rate sensor and step counting tests and so far found the Apple Watch sensors accurate. They also submerged the Apple Watch in water for 30 minutes in simulated 3 feet of water which matches up against its rating and found it waterproof.
From all of the tests, both scientific and not so scientific, Apple Watch seems to be passing w/flying colors.