How to find how many hours an Android phone has been used? I want to know if there is a method that can tell me how many hours an Android phone has been used. Just like we have cheat codes that we used for Nokia phones; they tell us the hours (regardless of factory reset). Any alternate for Android?
Go to Settings &rarr; About phone &rarr; Status, 
scroll to bottom and you will be able to see Up time. 

I think this feature is available on Android 4+.