| Hardware and OS | Gaba A666 | |
| Operating system | Android v4.4 (Kitkat) | |
| Processor | Quad core | |
| RAM | 1 GB | |
| Internal Storage | 16 GB | |
| Expandable memory | Yes Up to 64 GB | |
| Display | Gaba A666 | other phones |
| Type | TFT | |
| Size | 5.0 inches | |
| Resolution | HD | |
| Pixel Density | 294 ppi | |
| Touchscreen | Yes Capacitive Touchscreen, Multi-touch | |
| Screen to body ratio | 68.27 % | |
| Connectivity | Gaba A666 | 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 | |
| NFC | Yes | |
| Dual SIM | Dual SIM, GSM GSM | |
| USB connectivity | microUSB 2.0 | |
| Camera | Gaba A666 | other phones |
| Image | 4128 x 3096 Pixels | |
| Camera features | Digital Zoom | |
| Flash | Yes LED Flash | |
| Autofocus | Yes | |
| Multimedia | Gaba A666 | other phones |
| Audio jack | 3.5 mm | |
| FM radio | Yes | |
| Loudspeaker | Yes | |
| Design | Gaba A666 | other phones |
| Height | 142.5 mm | |
| Width | 70.8 mm | |
| Thickness | 6.5 mm | |
| Weight | 128 grams | |
| Colours | Black | |
| Battery | Gaba A666 | other phones |
| Capacity | 1830 mAh | |
| Type | Li-Polymer | |
| Other | Gaba A666 | other phones |
| Other sensors | Light sensor, Proximity sensor, Accelerometer, Compass, Gyroscope | |
