I am user of apple from the last two years, I have alppe notebook, and now I have iphone 6 plus I used all the the iphones from 3s and later version like 4, 4s, 5, 5s, and 6.
All the phones has very good look and shape and awesome features. I write reviewed about the iphone 4, This is an average phone.
Build quality is fantastic, call reception is poor when you grip the phone, call quality is decent, internet is fairly fast but almost unusable because of the small display although the display is good with accurate colors and fairly bright. Music app is good and the speaker has VERY good sound quality. The camera is good but it’s a shame you can’t zoom in on video.
It click many photos countineously with good quality and without blurness, On iOS 7 the device is very slow and lags a lot, gaming performance is good. Small games run good, GTA 3/Vice City is pretty much unplayable and it even lags on games like subway surfers.
Text input is okay but you can’t change the keyboard so if you don’t like it you have to deal with it but the keyboard is fine for me. The battery life is not the best. It charges after day use some times it need two times charging in the day, i’ve seen but it’s still fairly good. I not recommended you for it in these days, If you are looking at this price range get a Motorola Moto G, if you want to go with apple then buy 5 or 5s 4 is now old and not impress able.