Xiaomi

Xiaomi  Redmi 4A  2GB/5 inches HD /Qualcomm Snapdragon 425, MSM8917, Quad Core 64bit 1.4GHz/on Android 6.0 OS/2 GB RAM, 32GB ROM / Dual SIM (Micro + Nano / microSD),dual standby / 13MP rear camera with LED flash,F /2.2 aperture; 5MP front-facing camera/ 3030mAh battery / 3120mAh (typical)

Xiaomi  Redmi 4X  3GB/5.0 inch / Qualcomm MSM8940 Snapdragon 435  ,  Octa-core 1.4 GHz Cortex-A53 Android 6.0.1 (Marshmallow) /3 GB , 32 GB up to 128GB / Dual SIM (Nano-SIM/ Micro-SIM, dual stand-by)Camera Resolution 13 MP /  Front Camera Resolution 5mp/2.2, 1080p / Non-removable Li-Po 4100 mAh battery