Different Versions of Xiaomi Mi3 (WCDMA/TD-SCDMA/CDMA2000)

Mi3 is very popular in China and some other Asian countries. It ships with either a brand new 1.8 Ghz quad-core Tegra 4 chip from nVidia or a Qualcomm Snapdragon 800 processor. Other components are equally outstanding: 5-inch IPS display (full HD at 16:9), 13 MP camera with dual-LED flash, and 3050mAh lithium ion polymer battery. It is only 8.1 mm thin, 145 grams light, and houses an alumium-magnesium alloy frame, coated with 3 layers of thermal graphite. It is published on Sep 5th, 2013 in Mainland China.

There are three version of Mi3: WCDMA, TD-SCDMA, CDMA2000

WCDMA Version Specification

Chipset: Qualcomm MSM8274AB Snapdragon 800
Network: WCDMA (2G Network 850/900/1800/1900; 3G Network 850/900/1900/2100)
Display: 5.0 inches 1080*1920 pixels
CPU: Quad-core 2.3 GHz Krait 400
Carema: 13MPixel Sony Exmor RS/Front 2 MPixel
Battry: 3050mAh Non User-Interchangeable
RAM: 2GB
ROM: 16GB/64GB
SIM: Micro SIM
For international users who want to use 3G network should use this version.

TD-SCDMA/CDMA2000 Version 

TD-SCDMA is for China Mobile (a major carrier in China) ONLY. Its only difference with WCDMA version is that it uses Nvidia Tegra4 instead of Snapdragon MSM8274AB. Other specs are the same. 

Similar to TD-SCDMA version, CDMA2000 version is for China Telecom (another main carrier in China) only. CDMA 2000 version uses Snapdragon MSM8674AB, same as WCDMA version. Other specs are the same.