I recently bought the Galaxy S2 and wanted to know from any S2 users who also bought 4S's how the battery life compares. The S2 gets decent battery life. I usually take it off the charger around 8 am and it lasts me until 8 or 9 pm. How's the 4S compare to that? Thanks to anybody who replies, I just want the phone with the best battery life. No iOS versus Android comparisons.