| Hardware and OS | Obi Hornbill S551 | |
| Operating system | Android v4.4.2 (Kitkat) | |
| Processor | Quad core | |
| RAM | 1 GB | |
| Internal Storage | 8 GB | |
| Expandable memory | Yes Up to 32 GB | |
| Display | Obi Hornbill S551 | other phones |
| Type | IPS LCD | |
| Size | 5.5 inches | |
| Resolution | HD | |
| Pixel Density | 267 ppi | |
| Touchscreen | Yes Capacitive Touchscreen, Multi-touch | |
| Screen to body ratio | 69.56 % | |
| Connectivity | Obi Hornbill S551 | other phones |
| Network support | 3G, 2G | |
| WI-FI | Yes Wi-Fi 802.11, b/g/n | |
| Gps | Yes with A-GPS | |
| Bluetooth | Yes v4.0 | |
| Dual SIM | Dual SIM, GSM GSM | |
| USB connectivity | microUSB 2.0 | |
| Camera | Obi Hornbill S551 | other phones |
| Image | 4128 x 3096 Pixels | |
| Camera features | 4 x Digital Zoom, Face detection | |
| Flash | Yes LED Flash | |
| Autofocus | Yes | |
| Video recording | 1920x1080 fps | |
| Multimedia | Obi Hornbill S551 | other phones |
| Audio jack | 3.5 mm | |
| FM radio | Yes Recording option | |
| Loudspeaker | Yes | |
| Design | Obi Hornbill S551 | other phones |
| Height | 156 mm | |
| Width | 76.8 mm | |
| Thickness | 7.9 mm | |
| Weight | 145 grams | |
| Colours | White | |
| Battery | Obi Hornbill S551 | other phones |
| Capacity | 2200 mAh | |
| Type | Li-ion | |
| Other | Obi Hornbill S551 | other phones |
| Other sensors | Light sensor, Proximity sensor, Accelerometer | |
