Back up your iOS device before you read another word.
OK. On your iOS device, tap Settings > General > Software Update and update to iOS 8.2, which landed yesterday.
One little goodie that came along for the ride is the brand new Apple Watch app. Fire up the app and you’ll see a tab bar with three icons. The first one, the default, is where you’ll pair your iPhone with your Apple Watch, if you do decide to get one. The pairing process is done via your iPhone camera, which I find fascinating. You can also pair manually, by tapping the info icon to view your Apple Watch name, then tap it on the list to pair.
All very interesting, but not particularly useful. The second tab is a short collection of Apple Watch videos, all of which you’ve likely already seen.
The third tab is a front end for the Apple Store, formatted nicely to fit your phone.
The Apple Watch app will, no doubt, become much more useful when the Apple Watch actually, you know, ships.