When will the next iPhone be released?

Hi. So I've got an iPhone 4S at the moment, looking to upgrade as its starting to play up (it's be used alot! Do I get the iPhone 5? Or wait for the next model to be released. Any ideas when the next iPhone will come out?

I'm due upgrade in few months n iPhone 5s is rumoured to come out in August as well as iPhone 6 but it all just rumosers until apple say

Hi your a bit late it already has.
we're now waiting I phone 6 due in november.

The iphone 5 is already out, the 5s will be released soon, usually a new iphone comes out around the sameish time every year.

There's no iphone 5s its just iphone 6 coming october-november

Expect September.

As far as your current iPhone, try doing a restore and/or clear excess data using PhoneClean for Windows/Mac