| Local Name | Galaxy S II Skyrocket HD I757 |
| Additional Information | For AT&T. |
| Technology | GSM / HSPA / LTE |
| 4G Bands | LTE band 4(1700/2100), 17(700) |
| 3G Bands | HSDPA 850 / 1900 / 2100 |
| 2G Bands | GSM 850 / 900 / 1800 / 1900 |
| Speed | HSPA 21.1/5.76 Mbps, LTE |
| GPRS | Yes |
| EDGE | Yes |
| Announced | 2012, January |
| Status | Discontinued |
| SIM | Micro-SIM |
| Display Type | Super AMOLED capacitive touchscreen, 16M colors |
| Screen Size | 4.65 inches |
| Resolution | 720 x 1280 pixels (~316 ppi pixel density) |
| Mulitouch | Yes |
| Protection | Corning Gorilla Glass | TouchWiz UI |
| OS | Android OS, v2.3.5 (Gingerbread) |
| CPU | Dual-core 1.5 GHz |
| 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, Wi-Fi Direct, DLNA, hotspot |
| Bluetooth | v3.0, A2DP, apt-X |
| GPS | Yes, with A-GPS |
| NFC | Yes |
| USB | microUSB v2.0 |
| Sensors | Accelerometer, gyro, proximity, compass |
| Messaging | SMS(threaded view), MMS, Email, Push Mail, IM |
| Browser | HTML5, 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 |
| Colors | Black |
| SAR US | 0.43 W/kg (head) 0.77 W/kg (body) |
| SAR EU | 0.30 W/kg (head) |