Is the iPhone 5 battery better than the iPhone 4?

I have an iPhone 4 and want to upgrade but before I do I wanted to know whether the battery was better?

Worse

No, when apple made the iphone 5 they used a new screen type that is thinner and with the saved space, they were going to add a lot more battery life, but instead, they decided to make it thinner. So it's a 4s with a bigger screen which is going to take more, and a new ios which is likely to take more, plus it has a new dock so you can't use any of your old docks or chargers if you have them. I know someone who got one and it's very fast and lightweight which was the idea, but personally, I'd much rather them have added more battery life.

Yeah! It's slightly better in MAh capacity than 4S but as it houses the 4 inch screen unlike the 4S 's 3.5 inch, they seem to have equal amount of battery capabilities.