| Hardware and OS | Karbonn Smart A4 Plus | |
| Operating System | Android v4.0 (Ice Cream Sandwich) | |
| Processor | Dual core, 1 GHz | |
| RAM | 512 MB | |
| Internal Memory | 139 MB | |
| Expandable Memory | yes Up to 32 GB | |
| SIM Slot(s) | Dual SIM | |
| Display | Karbonn Smart A4 Plus | other phones |
| Screen Size | 4 inches (10.16 cm) | |
| Screen Resolution | 480 x 800 pixels | |
| Display Type | IPS LCD | |
| Pixel Density | 233 ppi | |
| Touch Screen | yes Capacitive Touchscreen | |
| Main Camera | Karbonn Smart A4 Plus | other phones |
| Resolution | 3.2 MP Primary Camera
| |
| Image Resolution | 2048 x 1536 Pixels | |
| Camera Features | Digital Zoom | |
| Connectivity | Karbonn Smart A4 Plus | other phones |
| Network | 2G: Available | |
| SIM 1 | 2G Bands: GSM 900 / 1800
GPRS: Available EDGE: Available | |
| SIM 2 | 2G Bands: GSM 900 / 1800
| |
| Bluetooth | yes | |
| GPS | yes | |
| Wi-Fi | yes Wi-Fi 802.11, b/g/n | |
| Wi-Fi Features | Wi-Fi Direct, Mobile Hotspot | |
| USB Connectivity | USB 2.0 | |
| Multimedia | Karbonn Smart A4 Plus | other phones |
| Audio Jack | 3.5 mm | |
| FM Radio | yes | |
| Design | Karbonn Smart A4 Plus | other phones |
| Height | 123 mm | |
| Width | 63 mm | |
| Thickness | 10.5 mm | |
| Weight | 90 grams | |
| Colours | White | |
| Battery | Karbonn Smart A4 Plus | other phones |
| Type | Li-ion | |
| Capacity | 1250 mAh | |
| Features | Karbonn Smart A4 Plus | other phones |
| Applications | Google Play Store, Karbonn Live, TOI, News/Weather, etc. | |
| Other Sensors | Proximity sensor, Accelerometer | |
