Xiaomi mi 4i it was a best 5.0 inch ips led screen Corning scratch-resistant glass MIUI 6.0 and it was has 5.0.2 android lollipop chipset is qualcomm msmj8939 snapdragon 615 processor.
And cpu is quad core 1.7ghz cortax a53 and quad core 1.0 ghz cortax a 53 and gpu is adreno 405 and it cpu is 64 bit 28 nm process it was has 16/32 gb storage and 2gb ram primary camera is 13 MP, f/2.0, autofocus, dual-LED(dual tone) flash with sony and smasung sensor it was has bluetooth 4.1 low power and secondary camera is 5mp Sensors Accelerometer, gyro, proximity, compass it was has 3120 mah battery Pump up the volume with Smart PA playback and it has 2 led flash 1st is cold light and 2nd is warm light and it was has Shoot first, focus later feature it was a best phone