Everyone seems to throw around "useage" as if it's all the exact same...
Sure it's all under one category but battery live varies a TON depending on the type of usage. I've gotten over 8 hrs of usage... listening to music ONLY. And I've gotten a couple/few hours (calculated) usage by having the screen on and navigation tracking while a tracked myself on a hiking trail...
It all counts as "usage" but it's VERY different...
Well said.
Try usage on a graphic intense game like infinity blade for example or any other games like that.
Your phone wont last that long.