> Android devices are many different sizes and shapes, so this sort of consistency is practically impossible (although I'd be really impressed if someone pulled

> Android devices are many different sizes and shapes, so this sort of consistency is practically impossible (although I'd be really impressed if someone pulled it off, surely there's a way to get physical device dimensions in the Android SDK?) If you are interested in how this for Android, the android design sign on metrics has a good overview, particularly the section on 48dp rhythm: http://developer.android.com/design/style/metrics-grids.html http://developer.android.com/design/style/metrics-grids.html