How scratch resistant is the Apple Watch Sport's screen?

Cheapest model lacks hard sapphire screen, instead relying on hardened glass similar to smartphones. But is it scratch resistant enough for a watch?The vast majority of Apple Watch sales are expected to be of the cheapest version, the Apple Watch Sport – but just how scratch resistant is its screen?
The Sport’s screen is made from Ion-X glass, unlike the Apple Watch and premium-priced Edition which have sapphire screens.Continue reading...