Should I for with an iPhone 5 or 5s?

I have an iPhone 4 for about a year and a half and I'm seriously thinking of getting an upgrade because since I got iOS 7 it is very laggy and slow! Should I go with the iPhone 5 or pay a little more and go with the 5s? Or should I just completly change directions and go with a samsung or something of that sort?

The iPhone 5 is no longer for sale they replaced that for the iPhone 5c.Goodluck

Id say if you have most of your music purchased on itunes, stay with apple. If not, go with a samsung s4, it has so many features, just watch youtube videos. If you must go with apple, just buy the best one out (5s). Its all down to preference. A samsung let's you upgrade the space with a sd card, and the phone can multitask.

Bad news because the iPhone 5 has been discontinued! I'd totally go with the iPhone 5s since it's the newest model. For you, it'd be a HUGE upgrade since the 5s is gratefully improved then the other iPhones. If you don't plan on getting the 5s, I'd go with the 5c or maybe a Galaxy S4.