Is the sapphireof the Apple Watch Series 3 better than glass?

The base Apple Watch Series 3 comes with the same ion-strengthened glass that the iPhones use. The pricier Edition model has sapphire crystal instead, which is harder and more scratch resistant. But are all sapphires the same?

JerryRigEverything set out to test this, using a $300 Tissot watch as a control (which also has sapphire crystal). The results? Well, heres the video and there spoilers are below it.