This is the best mobile.in Coolpad brand this mobile has 3gb ram and 16gb internal memory.2500mah battery pack up.this phone as 13mp rear camera and 5mp front camera with 3.5mm audio jack .this phone has dual 4g micro sim option. This phone October core processor. Android lalipop5.1.it has good wifi conductive .and many more.i n this phone automatic the soft ware updates option is there.this phone has finger touch lock. When u touch the lock it will open just 0.05seconds it means less than one second.this phone has good sound track also etc.please read my review and buy the mobile