iPhone 4 Users

Hi, everyone,

I have an iPhone 4 that I've kept on 6.1.3; would other iPhone users on iOS 7.1 tell me if it's worth upgrading from 6.1.3? I know it's old and that I should get a new phone, but I'm waiting to get the 6 when that comes out. I just wasn't convinced by the 5s or 5c (I wanted a bigger screen). Let me know. Thanks so much!