As the entry level model, the Apple Watch Sport collection lacks the exceedingly scratch resistant sapphire display that graces the Watch and Edition models. Instead, the Sport models feature an Ion-X glass display which, while durable, is not quite as scratch resistant as sapphire.
But just what, exactly, is the qualitative difference between Ion-X glass and sapphire?
To answer that question, Lewis Hilsenteger of Unbox Therapy uploaded a video where the Apple Watch Sport display is put through a series of rigorous scratch testing.
How scratch resistant is the Apple Watch Sport?