| Brand: | BenQ-Siemens |
| Model: | EF81 |
| Release Date: | 2006, January |
| Size: | 2.2 inches, 34 x 45 mm, 15.0 cm2 (~31.3% screen-to-body ratio) |
| Resolution: | 240 x 320 pixels, 4:3 ratio (~182 ppi density) |
| Technology: | TFT, 256K colors |
| Main Specs: | 2 MP |
| Main Features: | rotating lens |
| Main Video: | Yes |
| Capacity: | Removable Li-Ion 950 mAh battery |
| Type: | Li-Ion |
| Expandable: | microSD (dedicated slot) |
| Dimensions: | 94 x 51 x 15.9 mm (3.70 x 2.01 x 0.63 in) |
| Weight: | 110 g (3.88 oz) |
| Wifi: | No |
| Bluetooth: | Yes |
| Nfc: | No |
| Usb: | Proprietary |
| Headphone Jack: | No |
| Network: | GSM / UMTS |
| Colors: | Titanium Silver |