| 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 |
| 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 |
| 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 |
| Main camera: | 1.3 MP,
Single |
| Specs: | 1.3 MP |
| Video: | Yes |
| Multimedia Vodafone 1231 |
| 3.5 mm Jack: | No |
| Radio: | No |
| Design Vodafone 1231 |
| Colors: | Black |
| Dimensions: | 113 x 65.4 x 14.5 mm |
| Weight: | 130 g |
| Battery Vodafone 1231 |
| 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 |
| SAR: | SAR EU - 0.69 W/kg (head) |
| Release date: | 2009, June |
| Sensors: | |