| Hardware and OS | Vodafone 1231 | |
| Operating system | Microsoft Windows Mobile 6.1 Standard | |
| Internal memory | 48 MB | |
| External memory | microSD, up to 4 GB (dedicated slot) | |
| Display | Vodafone 1231 | other phones |
| Type | TFT | |
| Size | 2.5" inc | |
| Resolution | 320 x 240 px | |
| Screen-to-Body Ratio | 26.2% | |
| Display area | 19.4 cm2 | |
| Display aspect ratio | 4:3 (height:width) | |
| Pixel Density | 160 PPI | |
| Colors | 65K | |
| Connectivity | Vodafone 1231 | other phones |
| Wi-Fi | No | |
| Network | GSM | |
| SIM card | Mini-SIM | |
| Bluetooth | 2.0, A2DP | |
| Edge | Class 10 | |
| GPRS | Class 10 | |
| GPS | Yes | |
| USB | Proprietary | |
| Camera | Vodafone 1231 | other phones |
| Main camera | 1.3 MP, Single | |
| Specs | 1.3 MP | |
| Video | Yes | |
| Multimedia | Vodafone 1231 | other phones |
| 3.5 mm Jack | No | |
| Radio | No | |
| Design | Vodafone 1231 | other phones |
| Colors | Black | |
| Dimensions | 113 x 65.4 x 14.5 mm | |
| Weight | 130 g | |
| Battery | Vodafone 1231 | other phones |
| Battery capacity | 1100 mAh, Removable Li-Ion | |
| Battery life | Stand by time- Up to 230 h
Talking time- Up to 5 h
| |
| Other | Vodafone 1231 | other phones |
| SAR | SAR EU - 0.69 W/kg (head) | |
| Release date | 2009, June | |
| Sensors | | |
