| Hardware and OS | Samsung Galaxy 551 | |
| Operating system | Android 2.2 (Froyo), upgradable to 2.3.6 (Gingerbread) | |
| Processor | 600 MHz | |
| Chipset | Qualcomm MSM7227 Snapdragon S1 | |
| GPU | Adreno 200 | |
| Internal memory | 160 MB | |
| External memory | microSD, up to 32 GB (dedicated slot), 1 GB included | |
| Display | Samsung Galaxy 551 | other phones |
| Type | TFT | |
| Size | 3.2" inc | |
| Resolution | 240 x 400 px | |
| Touchscreen | capacitive touchscreen | |
| Screen-to-Body Ratio | 47.7% | |
| Display area | 29.1 cm2 | |
| Display aspect ratio | 5:3 (height:width) | |
| Pixel Density | 146 PPI | |
| Colors | 16M | |
| Connectivity | Samsung Galaxy 551 | other phones |
| 2G Network | GSM 850 / 900 / 1800 / 1900 | |
| Wi-Fi | Wi-Fi 802.11 b/g/n, DLNA, hotspot | |
| Network | GSM / HSPA | |
| SIM card | Mini-SIM | |
| Bluetooth | 2.1, A2DP | |
| Edge | Class 12 | |
| GPRS | Class 10 | |
| GPS | Yes, with A-GPS | |
| Speed | HSPA 7.2/0.384 Mbps | |
| USB | microUSB 2.0 | |
| Camera | Samsung Galaxy 551 | other phones |
| Main camera | 3.15 MP, Single | |
| Specs | 3.15 MP, AF | |
| Video | 320p@15fps | |
| Multimedia | Samsung Galaxy 551 | other phones |
| 3.5 mm Jack | Yes | |
| Radio | Stereo FM radio, RDS | |
| Design | Samsung Galaxy 551 | other phones |
| Colors | Black | |
| Dimensions | 111 x 55 x 15.2 mm | |
| Weight | 117 g | |
| Battery | Samsung Galaxy 551 | other phones |
| Battery capacity | 1200 mAh, Removable Li-Ion | |
| Battery life | Stand by time- Up to 520 h (2G) / Up to 370 h (3G)
Talking time- Up to 9 h (2G) / Up to 5 h (3G)
| |
| Other | Samsung Galaxy 551 | other phones |
| SAR | SAR - 0.18 W/kg (head), 0.90 W/kg (body),
SAR EU - 0.38 W/kg (head) | |
| Release date | 2010, October | |
| Sensors | Accelerometer, proximity, compass | |
