| Hardware and OS | Karbonn A4 | |
| Operating system | Android 2.3.6 (Gingerbread) | |
| Internal memory | 256 MB, 512 MB | |
| External memory | microSD, up to 32 GB (dedicated slot) | |
| Display | Karbonn A4 | other phones |
| Type | TFT | |
| Size | 4" inc | |
| Resolution | 320 x 480 px | |
| Touchscreen | capacitive touchscreen | |
| Screen-to-Body Ratio | 57.8% | |
| Display area | 47.6 cm2 | |
| Display aspect ratio | 3:2 (height:width) | |
| Pixel Density | 144 PPI | |
| Colors | 256K | |
| Connectivity | Karbonn A4 | other phones |
| 2G Network | GSM 850 / 1900 - SIM 1 & SIM 2 | |
| Wi-Fi | Wi-Fi 802.11 b/g/n, hotspot | |
| Network | GSM / HSPA | |
| SIM card | Dual SIM (Mini-SIM) | |
| Bluetooth | Yes | |
| Edge | Yes | |
| GPRS | Yes | |
| GPS | No | |
| Speed | HSPA | |
| USB | Proprietary | |
| Camera | Karbonn A4 | other phones |
| Main camera | 3.15 MP, Single | |
| Specs | 3.15 MP | |
| Video | Yes | |
| Selfie camera | 0.3 MP, Single | |
| Multimedia | Karbonn A4 | other phones |
| 3.5 mm Jack | Yes | |
| Radio | FM radio | |
| Design | Karbonn A4 | other phones |
| Colors | White/Black | |
| Dimensions | 124.8 x 66 x 9.5 mm | |
| Weight | 75 g | |
| Battery | Karbonn A4 | other phones |
| Battery capacity | 1400 mAh, Li-Ion | |
| Battery life | Stand by time- Up to 250 h
Talking time- Up to 4 h 20 min
| |
| Other | Karbonn A4 | other phones |
| Release date | 2013, March | |
| Sensors | Accelerometer | |
