BenQ-Siemens EF51 Specifications
| Brand: | BenQ-Siemens |
| Model: | EF51 |
| Release Date: | 2006, February |
| Display | |
| Size: | 2.2 inches, 40 x 40 mm, 15.6 cm2 (~35.7% screen-to-body ratio) |
| Resolution: | 120 x 128 pixels (~80 ppi density) |
| Technology: | TFT, 256K colors |
| Camera | |
| Main Specs: | 1.3 MP |
| Main Video: | No |
| Battery | |
| Capacity: | Removable Li-Ion 870 mAh battery |
| Type: | Li-Ion |
| Memory | |
| Expandable: | miniSD |
| Body | |
| Dimensions: | 89 x 49 x 18 mm (3.50 x 1.93 x 0.71 in) |
| Weight: | 95 g (3.35 oz) |
| Connectivity | |
| Wifi: | No |
| Bluetooth: | 1.2, A2DP |
| Nfc: | No |
| Usb: | Proprietary |
| Headphone Jack: | No |
| Network: | GSM |
| Colors: | Flashy White, Black |