A couple of coworkers complained about their lack of battery life with their Androids. One had a Galaxy S2 that he always has to plug in. Another has, I think an HTC, and purchased a number of spare batteries and saddle back battery packs so he can swap around all day and put in chargers. I have a plain 4, and can go 2 days to normal usage (3G is off all the time). I mentioned to them about turning off 3G, but neither did not know if they could turn off 3G on Android. Of course the 4S is more power intensive, but how bad compared to others?