Chipset is an array of integrated circuits meant to perform in real-time constraints and dedicated functions. Expensive smartphones tend to have better chipset, which performs more advanced operations.
Qualcomm Snapdragon 616 MSM8939v2
It stands for a Central Processing Unit. It's generally known as the brain of the device. In short, the CPU process the lines of tasks assigned by the operator.
Random Access Memory
1.2Ghz + 1.5Ghz
It's a reserved memory in Smartphones, laptops, tablets, e.t.c, allowing to save all the data pertaining to the applications, videos, images, and other files in one place.
It's an alternative external memory to extend the storage size by means of MicroSD card, flash e.t.c
It's a medium or location putting the memory card.
MicroSD + Nano sim slot tray
Acceleromter, Ambient Light, Proximity Hall, , Digital Compasss, Fingerprint sensor