| Brand: | Siemens |
| Model: | M55 |
| Release Date: | 2003, Q2 |
| Display | |
| Resolution: | 101 x 80 pixels, 7 lines |
| Technology: | CSTN, 4096 colors |
| Battery | |
| Capacity: | Removable Li-Ion 700 mAh battery (EBA-510) |
| Type: | Li-Ion |
| Memory | |
| Expandable: | No |
| Body | |
| Dimensions: | 101 x 46 x 21 mm (3.98 x 1.81 x 0.83 in) |
| Weight: | 83 g (2.93 oz) |
| Connectivity | |
| Wifi: | No |
| Bluetooth: | No |
| Nfc: | No |
| Headphone Jack: | No |
| Network: | GSM |