I also have this iphone. it is a great phone. I owned this smartphone in 2015, it costs me 25K. its features are great. I liked it most because it doesnt hangs. but due to JIO 4g this phone has a very big failure. it is LTE, it supports jio 4g. in this phone jio voice call, text message do not work, only mobile data works on it. this phone is powered by 1.3ghz dual core apple A7 chip. it comes with 16 Gb, 32Gb ram . I baught a 16Gb ram phone with space grey colour. internal storage can not expandable. it has a 8 megapixel primary camera and 1.2 megapixel front shooter for selfies specially. phone is great but I recommends my friends not to buy this phone due to LTE problem. u can buy iphone 6, 7 or 8 COMING SOON
Thankyou
