http://www.gsmarena.com/xiaomi_mi_3-5678.php

GENERAL 2G Network GSM 850 / 900 / 1800 / 1900
3G Network HSDPA 850 / 900 / 1900 / 2100
SIM Mini-SIM
Announced 2013, September
Status Available. Released 2013, December
BODY Dimensions 144 x 73.6 x 8.1 mm (5.67 x 2.90 x 0.32 in)
Weight 145 g (5.11 oz)
DISPLAY Type IPS LCD capacitive touchscreen, 16M colors
Size 1080 x 1920 pixels, 5.0 inches (~441 ppi pixel density)
Multitouch Yes
SOUND Alert types Vibration; MP3, WAV ringtones
Loudspeaker Yes
3.5mm jack Yes
MEMORY Card slot No
Internal 16/64 GB, 2 GB RAM
DATA GPRS Yes
EDGE Yes
Speed DC-HSDPA, 42 Mbps; HSDPA, 21 Mbps; HSUPA, 5.76 Mbps
WLAN Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, Wi-Fi hotspot
Bluetooth Yes, v4.0 with A2DP
NFC Yes
USB Yes, microUSB v2.0 (MHL), USB On-the-go
CAMERA Primary 13 MP, 4128 x 3096 pixels, autofocus, dual-LED flash
Features Geo-tagging, touch focus, face and smile detection, image stabilization, HDR
Video Yes, 1080p@30fps, HDR
Secondary Yes, 2 MP, 1080p@30fps
FEATURES OS Android OS, v4.2.1 (Jelly Bean)
Chipset Qualcomm MSM8274AB Snapdragon 800
CPU Quad-core 2.3 GHz Krait 400
GPU Adreno 330
Sensors Accelerometer, gyro, proximity, compass, barometer
Messaging SMS(threaded view), MMS, Email, Push Mail, IM, RSS
Browser HTML5
Radio FM radio
GPS Yes, with A-GPS support and GLONASS
Java Yes, via Java MIDP emulator
Colors Various
– Active noise cancellation with dedicated mic
– TV-out (via MHL A/V link)
– SNS integration
– MP4/DivX/XviD/WMV/H.264/H.263 player
– MP3/WAV/eAAC+/FLAC player
– Organizer
– Image/video editor
– Document viewer (Word, Excel, PowerPoint, PDF)
– Google Search, Maps, Gmail,
YouTube, Calendar, Google Talk, Picasa
– Voice memo/dial/commands
– Predictive text input (Swype)
BATTERY Non-removable Li-Ion 3050 mAh battery
Stand-by
Talk time