Mine lasts all day and that's good enough for me. Way better the 4s battery or any android I've used.
For all those that say the battery life on the iPhone 5 is rubbish I think it's great look at this
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Anytime someone posts a picture of their usage hours on their phone, I take it with a grain of salt. It really depends on what type of tasks you're running on your phone, how many apps you're multitasking with, and your last battery charge cycle.