| Hardware and OS | Karbonn A90 | |
| Operating System | Android v4.0 (Ice Cream Sandwich) | |
| Processor | 1 GHz | |
| Chipset | Spreadtrum SC6820 | |
| RAM | 512 MB | |
| Internal Memory | 512 MB | |
| Expandable Memory | yes Up to 32 GB | |
| SIM Slot(s) | Dual SIM, GSM GSM | |
| Display | Karbonn A90 | 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, Multi-touch | |
| Main Camera | Karbonn A90 | other phones |
| Resolution | 5 MP Primary Camera
| |
| Image Resolution | 2592 x 1944 Pixels | |
| Flash | yes LED Flash | |
| Camera Features | Digital Zoom | |
| Front Camera | Karbonn A90 | other phones |
| Resolution | 0.3 MP Primary Camera
| |
| Connectivity | Karbonn A90 | other phones |
| Network | 2G: Available | |
| SIM 1 | 2G Bands: GSM 1800 / 900 MHz
GPRS: Available EDGE: Available | |
| SIM 2 | 2G Bands: GSM 1800 / 900 MHz
| |
| Bluetooth | yes | |
| Wi-Fi | yes Wi-Fi 802.11, b/g/n | |
| Multimedia | Karbonn A90 | other phones |
| Audio Jack | 3.5 mm | |
| FM Radio | yes | |
| Loudspeaker | yes | |
| Design | Karbonn A90 | other phones |
| Height | 125 mm | |
| Width | 65 mm | |
| Thickness | 10.6 mm | |
| Weight | 116 grams | |
| Colours | Black, White | |
| Battery | Karbonn A90 | other phones |
| Type | Li-ion | |
| Capacity | 1400 mAh | |
| Features | Karbonn A90 | other phones |
| Applications | Google Play Store, Gmail, Google Search and Voice Search, Google Talk, Widgets, etc. | |
| Other Sensors | Accelerometer | |
