How long does your iPhone battery last?

In your answer please state which iPhone model you use, which iOS version it's on, and your usage and standby times (look in settings, general, usage).

I have the iPhone 4 on iOS 5.1 and I get about 6 hours usage and 2 days 5 hours standby.

If you didn't know this try it it saves loads of battery I've got the 4s also works for a few of the other models. Double click the home button. Then hold your finger down on one of the apps that appears and proceed to close them all they are shortcuts which basically means they are all running when they don't need to be.