Qmobile Jazz X JS-1 is a dual SIM handset powered with 1GHz Quad-Core processor. It comes with a 512 RAM and also have 8GB ROM. Jazz X JS-1 runs on Android Lollipop 5.1 and power of 1400 mAh battery. This video includes unboxing and in-depth professional unbiased video review of Qmobile Jazz X JS-1 conducted by the PhoneWorld team. Review is based on our opinion about after some serious testing, user ratings, price comparisons and head to head match-up.