| Hardware and OS | Karbonn A1 | |
| Operating system | Android 2.3.6 (Gingerbread) | |
| Processor | 1.0 GHz | |
| Internal memory | 256MB RAM | |
| External memory | microSDHC (dedicated slot) | |
| Display | Karbonn A1 | other phones |
| Size | 3.5 inches, 36.5 cm2 | |
| Resolution | 320 x 480 pixels, 3:2 ratio | |
| Type | TFT capacitive touchscreen, 256K colors | |
| Main Camera | Karbonn A1 | other phones |
| Camera | 3 MP | |
| Video | Yes | |
| Selfie camera | Karbonn A1 | other phones |
| Camera | VGA | |
| Connectivity | Karbonn A1 | other phones |
| 2G Network | GSM 900 / 1800 / 1900 - SIM 1 & SIM 2 | |
| Bluetooth | 2.1, A2DP | |
| EDGE | Yes | |
| GPRS | Yes | |
| GPS | No | |
| Technology | GSM | |
| USB | microUSB 2.0 | |
| WLAN | Wi-Fi 802.11 b/g | |
| Multimedia | Karbonn A1 | other phones |
| 3.5 mm Jack | Yes | |
| Loudspeaker | Yes | |
| Radio | FM radio | |
| Battery | Karbonn A1 | other phones |
| Capacity | Removable Li-Ion 1500 mAh battery | |
| Stand-by | Up to 240 h | |
| Talk time | Up to 4 h | |
| Design | Karbonn A1 | other phones |
| Colors | Ivory White | |
| Dimensions | 114.5 x 60.6 x 13.8 mm (4.51 x 2.39 x 0.54 in) | |
| Weight | 130 g (4.59 oz) | |
| SIM | Dual SIM (Mini-SIM) | |
| Features | Karbonn A1 | other phones |
| Sensors | Accelerometer, proximity | |
