| Local Name | I929 Galaxy S II Duos |
| Additional Information | For China Telecom |
| Technology | GSM / CDMA / EVDO |
| 2G Bands | GSM 900 / 1800 / 1900 | CDMA 800 / 1900 | CDMA2000 1xEV-DO |
| Speed | EV-DO Rev.A 3.1 Mbps |
| GPRS | Yes |
| EDGE | Yes |
| Announced | 2011, December |
| Status | Available. Released 2012, September |
| Dimensions | 129.8 x 68.9 x 9.7 mm (5.11 x 2.71 x 0.38 in) |
| Weight | 138 g (4.87 oz) |
| SIM | Dual SIM (Mini-SIM, dual stand-by) |
| Display Type | Super AMOLED Plus capacitive touchscreen, 16M colors |
| Screen Size | 4.52 inches (~65.0% screen-to-body ratio) |
| Resolution | 480 x 800 pixels (~206 ppi pixel density) |
| Mulitouch | Yes |
| Protection | Corning Gorilla Glass | TouchWiz UI |
| OS | Android OS, v2.3.5 (Gingerbread) |
| Chipset | Qualcomm MSM8660 Snapdragon |
| CPU | Dual-core 1.2 GHz |
| GPU | Adreno 220 |
| Card Slot | microSD, up to 32 GB |
| Internal Memory | 16 GB, 1 GB RAM |
| Primary Camera | 8 MP, 3264 x 2448 pixels, autofocus, LED flash |
| Camera Features | Geo-tagging, touch focus, face/smile detection |
| Video | 1080p@30fps |
| Secondary Camera | 2 MP |
| Alert Types | Vibration; MP3, WAV ringtones |
| Loudspeaker | Yes |
| 3.5mm Jack | Yes |
| WLAN | Wi-Fi 802.11 a/b/g/n, dual-band, hotspot |
| Bluetooth | v3.0, A2DP, apt-X |
| GPS | Yes, with A-GPS |
| Radio | Stereo FM radio with RDS |
| USB | microUSB v2.0 (MHL TV-out), USB Host |
| Sensors | Accelerometer, gyro, proximity, compass |
| Messaging | SMS(threaded view), MMS, Email, IM |
| Browser | HTML, Adobe Flash |
| Java | Yes, via Java MIDP emulator |
| Features Summary | Active noise cancellation with dedicated mic, MP4/DivX/XviD/WMV/H.264 player, MP3/WAV/eAAC+/AC3/FLAC player, Photo/video editor, Document editor |
| Battery | Li-Ion 1800 mAh battery |
| Colors | Black |
| SAR US | 0.79 W/kg (head) 0.73 W/kg (body) |
| SAR EU | 0.85 W/kg (head) |
