My hope is a very simple one, I was hoping that I could buy a phone, charge it and that it would not run out of power within a few hours of heavy usage, my co-w

My hope is a very simple one, I was hoping that I could buy a phone, charge it and that it would not run out of power within a few hours of heavy usage, my co-worker gets a full day of challenging battery use from his S3, which I have been a little more impressed with. Impressive screens & faster chips are all well and good but only if their is enough power in the dam thing to actually keep the device powered on.