| Hardware and OS | Celkon A20 | |
| Operating system | Android 4.2.0 (Jelly Bean) | |
| Processor | Dual-core 1.2 GHz | |
| Internal memory | 256 MB, 512 MB RAM | |
| External memory | microSD, up to 32 GB (dedicated slot) | |
| Display | Celkon A20 | other phones |
| Type | TFT | |
| Size | 4" inc | |
| Resolution | 480 x 800 px | |
| Touchscreen | capacitive touchscreen | |
| Display area | 45.5 cm2 | |
| Display aspect ratio | 5:3 (height:width) | |
| Pixel Density | 233 PPI | |
| Connectivity | Celkon A20 | other phones |
| 2G Network | GSM 900 / 1800 - SIM 1 & SIM 2 | |
| Wi-Fi | Wi-Fi 802.11 b/g/n | |
| Network | GSM / HSPA | |
| SIM card | Dual SIM (Mini-SIM) | |
| Bluetooth | Yes | |
| Edge | Class 12 | |
| GPRS | Class 12 | |
| GPS | No | |
| Speed | Yes, 384 kbps | |
| USB | microUSB 2.0 | |
| Camera | Celkon A20 | other phones |
| Main camera | 3.15 MP, Single | |
| Specs | 3.15 MP | |
| Video | Yes | |
| Selfie camera | 0.3 MP, Single | |
| Multimedia | Celkon A20 | other phones |
| 3.5 mm Jack | Yes | |
| Design | Celkon A20 | other phones |
| Colors | Black | |
| Battery | Celkon A20 | other phones |
| Battery capacity | 1500 mAh, Li-Ion | |
| Other | Celkon A20 | other phones |
| SAR | SAR EU - 0.88 W/kg (head), 0.60 W/kg (body) | |
| Release date | 2013, August | |
| Sensors | Proximity, gyro | |
