Get iPhone 5s now or wait for the 6?

I'm on an iPhone 4 at the moment and it's become incredibly slow and outdated. I can last with it for a bit longer, i've heard that the next iphone is rumored for a september release date, 6 months away. Is it worth the wait? Will it really be THAT much better than the 5s?

Yes lol. Bigger screen size. I reckon it won't be "that much better". Just like how we went from a 4S to 5, no big changes, except design and screen size. Same goes for the 6

Apple usually does evolutionary rather than revolutionary updates… Which is one of the reasons why your iPhone 4 has lasted so long.

The next iPhone will be better… But I'm not sure if it will be radically different. Most of this type of technology has plateaued… And Apple isn't really one for competing on screen size or fluff features that don't really work in the real world.

Iphone 5 and 5s are almost same i suggest buy 5 instead of 5s

Get the 5s. The 6 is going to be the same.