Oppo A31 is a smartphome released on aprail 2015 having the following features:
Li-Ion 2000 mAh ( Non-removable)
3G 4G WiFi
3.5 mm Audio Jack
Operating System: 4.4 ( KitKat)
Display Size: 4.5 in ( 480 x 854 px) 64.6% S-to-B ratio ( 218 ppi)
Dual Sim, Dual SIM ( Nano / Micro) Dual Stand-by
Processor Speed: 1.4GHz Processor Type: Qualcomm MSM8916 Snapdragon 410 ( Adreno 306 GPU)
RAM: 1 GB
Card Slot, microSD, Expandable up to 128 GB Available at a reasonable price of rupees 10000 only .