The Xiaomi M1S (Mi-ONE S) it’s a new Xiaomi generation phone and it was not upgraded from the old model. The Xiaomi Mi-ONE S has a brand new design even if at the first sight you don’t really recognize it. This phone it’s packed with a 4-inch display screen, a powerful 1.7GHz Qualcomm quad-core processor and a dual-flash setup alongside camera. Xiaomi Mi-ONE S has the latest MIUI V4 installed which bases on Android 4.0.