Sure, you’re interested in Apple Watch, but do yo know which one you want? More to the point, are you even sure it will look right on your wrist? You could pre-order the one you think is right, but what if you show up to the store to pick it up, only to find the slightly larger or smaller one was actually better. Good news; you don’t have to guess anymore. The Apple Store app shows you Apple Watch case sizes in their actual size.