Last 3 days ago I bought this phone .really this phone is amazing which has a 3 gb ram which makes it fast like a booster.it has 16 gb internal storage and can be expandlable upto 128 gb by external sd cardIt supports both 3g and 4g .The phone also is very much secured for its finger print lock features .This phone has a 3300 mAh non removal battery which has a good battery backup.In my opinion friends you can use this phone triely it is an amazing phone