Xiaomi on Wednesday unveiled its first 14.8 mm-thick laptop called 'Mi Notebook Air' in China which is 13% thinner than Apple's 17 mm-thick MacBook Air. With prices starting from ₹36,200, the laptop runs on Microsoft Windows 10 and allows unlocking with Mi Band 2 fitness tracker. It features a 12.5-inch display, 4 GB of RAM and 128 GB of internal memory.