I am 1 year old smartphone use this Asus zenfone 2 very nice multitasking phone and very nice gaming performance this phone but another performance is good example camera and another function but sound quality is not great the average sound quality this phone and camera performance is very nice the great camera is phone the 13 megapixel camera and secondary camera is 5 megapixels is very nice camera and more function the camera provide this phone slow motion and other function provide the Asus zenfone 2 software and another operating system is very nice the Optimizer another function this phone the very nice look and very stylish this phone I am purchase a very old phone 1 year old this phone but not a great service support this phone also provide the 4 GB RAM with very nice multitasking this phone I am used 1 years but no any leg no any problem the phone but software and operating system is really nice provide the Asus zenfone 2 and more function provide the Asus zenfone software example provide the app lock this phone know any download the Play Store app also provide the also app lock and another function also provide the very nice video editing software also provide the Asus zenfone 2 and another function is very nice provide the free I am suggest buy this phone and software function is very nice provide this phone and very stylish look and easy to use this phone and battery backup is awesome but not supported fast charging also 2 hours in average time this phone