I have a jailbroken iphone and want iOS7?

I have a jailbroken iPhone 4 and i want to update to iOS7. I was wondering what would happen if i just updated it from my settings. I know that my phone wouldnt be jailbroken anymore but would it delete anything from my phone?

Well its possible you need to get a 100% Tether First

No your iphone will not have jailbroken again it will just come an ios7

If you update your jailbroken iPhone 4 to iOS 7 from the settings it will not delete any of your apps or other data (it will add most but not all of the features of iOS 7 as the iPhone 4 can't support all the features) but it will get rid of your jailbrake.

*If you're planning on jailbreaking again I would advise for you to wait a while because it will take some time for iOS 7 (currently iOS 7.0.1) to be jailbroken