I AM USING NOKIA X SINCE 3YEARS WHEN I BUY THE MOBILE ITS LOOKING COOL WHEN I ON THE PHONE ITS TOUCH WAS SO SMOOTH AND I AND I DOWNLOAD MANY GAMES LIKE TEMPLE RUN IT IS PLAYING SMOOTHLY , THE VIDEO PLAYBACK IS GOOD IT PLAY 720P VIDEOS WITHOUT USING ANY SOWTWARE LIKE MX PLAYER BUT AFTER 1YEAR THE PHONES BECOME LAGGY AND THE GAME THAT I HAVE PLAYED TEMPLE RUN WAS NOT WORKING BUT ONE THINGS THAT I LIKE MOST OF THIS PHONE WAS IT NEVER GETS HEAT AND THE BATTERY WAS SUPERB SO THIS IS MY OPITION FOR NOKIA X