New videos about the operating system have appeared on our YouTube channel Android. We present to your attention a video review of an inexpensive, but enough functional Smartisan U1 smartphone equipped with a 5.5-inch Full-HD display, an eight-core processor Qualcomm Snapdragon 615, a main 13 MP camera and a 5 MP front camera, 16 (32) GB built-in memory and 2 GB of RAM, support for 4G / LTE networks, two SIM cards, NFC technology and running the Smartisan OS operating system (based on Android 4.4):