| Hardware and OS | Celkon A40 | |
| Operating system | Android 4.2.2 (Jelly Bean) | |
| Processor | Dual-core 1.3 GHz | |
| Internal memory | 4 GB, 512 MB RAM | |
| External memory | microSD, up to 32 GB (dedicated slot) | |
| Display | Celkon A40 | other phones |
| Type | TFT | |
| Size | 4" inc | |
| Resolution | 480 x 800 px | |
| Touchscreen | touchscreen | |
| Screen-to-Body Ratio | 56.4% | |
| Display area | 45.5 cm2 | |
| Display aspect ratio | 5:3 (height:width) | |
| Pixel Density | 233 PPI | |
| Connectivity | Celkon A40 | other phones |
| Wi-Fi | Wi-Fi 802.11 b/g/n, hotspot | |
| Network | GSM | |
| SIM card | Dual SIM | |
| Bluetooth | 2.0 | |
| Edge | Yes | |
| GPRS | Yes | |
| GPS | Yes | |
| USB | microUSB 2.0 | |
| Camera | Celkon A40 | other phones |
| Main camera | 5 MP, Single | |
| Specs | 5 MP | |
| Video | Yes | |
| Selfie camera | 0.3 MP, Single | |
| Multimedia | Celkon A40 | other phones |
| 3.5 mm Jack | Yes | |
| Radio | FM radio | |
| Design | Celkon A40 | other phones |
| Colors | White, Yellow, Blue | |
| Dimensions | 126.2 x 64 x 10.8 mm | |
| Weight | 126.5 g | |
| Battery | Celkon A40 | other phones |
| Battery capacity | 1500 mAh, Li-Ion | |
| Other | Celkon A40 | other phones |
| Release date | 2014, January | |
| Sensors | Accelerometer, proximity | |
