Xiaomi has just announced the most expected Mi 4, successor of the Mi 3 that was unveiled last year. It has a 5-inch (1920 x 1080 pixels) IPS display with 441 PPI, based one-glass solution (OGS) made by Sharp / JDI, powered by a 2.5 GHz quad-core Snapdragon 801 processor with Adreno 330 GPU. It runs on MIUI on top of Android 4.4 (KitKat). It has a 13-megapixel rear camera with Sony BSI sensor, and a 8-megapixel front-facing camera win Sony sensor. It has a stainless steel frame, 67.5mm-wide body and weighs just 149 grams. 
Xiaomi Mi 4 specifications
- 5-inch (1920 x 1080 pixels) IPS display with 441 PPI resolution with Corning Gorilla glass protection
- 2.5 GHz quad-core Snapdragon 801 processor
- MIUI V5 on top of Android 4.4 (KitKat)
- 13MP rear camera with LED Flash, Sony IMX214 BSI sensor, 6-element lens, f/1.8 aperture, 4K video recording
- 8MP front-facing camera with Sony Exmor R sensor, 5-element lens , f/1.8 aperture
- 8.9mm thick and weighs 149 grams
- 3GB RAM, 16 / 64 GB internal memory
- Infrared LED
- 4G LTE (Optional), 3G, WiFi 802.11 a/b/g/n (2.4/5 GHz), WiFi Direct, Bluetooth and GPS
- 3080 mAh battery, quick charging at 9V/1.2A or 5V/2A
The Xiaomi Mi4 comes in black and white colors with a range of back cover options such as wooden, bamboo, wove, sticks, marble and more. The 16GB variant is priced at 1999 Chinese Yuan ( US$ 322 / Rs. 19,390 approx) and the 64GB variant is priced at 2499 Chinese Yuan ( US$ 400 / Rs. 24240 approx). The China Unicom version would be available starting July 29th and would launch on other operators in August. The 4G variant would launch in September, but the pricing for it is not available yet.