THIS IS THE BEST SMARTPHONE I HAD USED EVER.100% SATISFATION.I RECOMMENDED THIS ONE.ITS 3 GB RAM PROVIDES TOOFAN SPEED AND NO LAG EVEN USING 50+ BACKGROUND APPLICATIONS. IT HAS 3300 MAH LI-LON BATTER WHICH PROVIDES LONGEST BATTERY LIFE WHICH HAS PROVIDE 2 DAYS BATTERY LIFE EASY WHILE USAGE AND ANOTHER THING IS ITS CAMERA IT HAS 13 MG FULL HD CAMERA HIGH HAS TO TAKE PICTURES IN SUPER QUALITY EVEN IN LOW LIGHT ALSO.SELFIES ARE ALSO VERY GOOD. HEATING ISUUE AND HANGING ISSUE ARE VERY LOW COMPARED TO OTHER SAMSUNG DEVICES AND IT IS ALSO WATER RESIST IT HAS SURVIVE IN WATER FOR 5 MINUTES SO WE CAN WASH THE MOBILE TO REMOVE DUST.I LOVED IT.