Go ahead get iphone 5S or waiting for iphone 6?

I'm trying wait for iPhone 6, however, my iPhone 4's battery is starting have problem with battery.

I checked for update, no more but stuck on iOS 7.0.4.

Should I go ahead to get iPhone 5s or find way to keep wait for iPhone 6?

Have White iPhone 4 16 GB since May 2011.

Get 5S. 6 won't be out for ages.

I would go with the iPhone 5s. If you've had the iPhone 4 for almost 3 years now, and you're having problems, you shouldn't wait. Apple is running behind and there's talk that they're making a filler phone right now, not the iPhone 6. Don't wait.

Up to you.

5s now or 6 in September. Up to your level of patience.

You can go with iPhone 5S. Because till date there's no official announcement for iPhone 6.

For latest updates of iPhone 6 are available on: http://www.iphone6releasedateandprice.com
http://www.iphone6releasedateandprice.com/2013/09/iphone-6-release-date-and-price.html