1. Unlock your phone
2. Press home to go to the homescreen
3. Swipe to the screen that contains the widget
4. Possibly scroll the widget itself
Android itself has several better alternatives for such glanceable information that are quicker to access:
- Google Now / other search plugin
- Lock screen widgets / lock screen "now playing" info
- Lock screen app quick links (available using Play Store lock screens or some vendor software)
- Persistent notifications in the notification bar
- The recent apps menu (to actually go to the app you want!)
Don't get me wrong, I love Android. I've used it for the last 5 years. It's just that I've never understood why people use widgets. They're too clunky to be useful even for the most basic of things.
I guess that's the beauty of Android, you can use the phone whichever way you think is best. This particular feature is not something that Apple should be envious of however. It really isn't universally popular or considered useful on Android. Windows Phone's live tiles are much better, but wouldn't work on Apple home screens either, because you would still have to fiddle about swiping through your home screens.