Sendo M550 Specifications
| Brand: | Sendo |
| Model: | M550 |
| Release Date: | 2003, Q2 |
| Display | |
| Resolution: | 128 x 128 pixels, 1:1 ratio |
| Technology: | CSTN, 4096 colors |
| Battery | |
| Capacity: | Removable Li-Ion battery |
| Type: | Li-Ion |
| Memory | |
| Expandable: | No |
| Body | |
| Dimensions: | 82 x 45 x 20 mm, 68 cc (3.23 x 1.77 x 0.79 in) |
| Weight: | 77 g (2.72 oz) |
| Connectivity | |
| Wifi: | No |
| Bluetooth: | No |
| Nfc: | No |
| Headphone Jack: | No |
| Network: | GSM |