The Apple Watch collection is more expensive than Apple Watch Sport collection. With the price started from $549 to $1.099, Apple Watch collection’s is made of stainless steel 316L and a Sapphire crystal for its glass display. Some time ago, Consumer Reports has done a strength of Apple Watch glass display test and found a high level strength, which is characteristic of Sapphire crystal. But, how to make sure that the glass display material of the Apple Watch collection is a pure Sapphire crystal?
Unbox Therapy has posted a video on YouTube about a test of the Apple Watch collection by using a diamond tester. That tool can detect materials in diamond category to show the hardness scale of that diamond. To complete the test, they also tested the glass from other devices to show if the glass is from a diamond category or not. Watch the video below: