Or 10 hours of Wifi browsing? I employ every battery saving tip possible and can only get 6 hours usage on LTE and 8 hours on Wifi. This is 2 hours lower than Apple's claims. I also noticed that LTE and ATT 4g drain the battery at the same rate so it is better to just stay on LTE. Either way, the battery is life is better than my previous SGS3, but I was just wondering how Apple was able to reach almost the same battery life as the iPad (9 hours LTE).