Battery :  Non-removable Li-Ion 3600 mAh battery Internal Storage :  3 GB RAM, 64 GB ROM Operating System :  Android 7.1 (Nougat) Secondary Camera :  13 MP, f/1.9, LED flash, 1080p Primary Camera :  13 MP, f/1.7, autofocus, LED flash Processor :  Octa-core 1.6 GHz Cortex-A53 Screen Size :  5.5 inches, 83.4 cm 2 (~73.3% screen-to-body ratio) Warranty Period :  1 Year Number Of Sim :  Dual SIM (Nano-SIM, dual stand-by) Brand :  Samsung