I am using this phone from past 4months this phone really works fast and smooth no visible lags at all .samsumg had made an amaging phone this time without lags at this price. All software updates from samsung came in time I am using all usefull apps in phone it working like 4gb ram devices. The screen of this device is amazing all colours pop out from screen wonderfully even battery consumption of this devive is very less this is a complete device to buy from market and infact this is an 4g device no compromise with internet speed this is simply unbelievable phone at this prices. I assist to buy this phone.