| Brand: | Siemens |
| Model: | SX66 |
| Type: | Feature phone |
| Release Date: | 2004 |
| Display | |
| Size: | 3.5 inches, 53 x 71 mm, 37.9 cm2 |
| Resolution: | 240 x 320 pixels, 4:3 ratio (~114 ppi density) |
| Technology: | TFT resistive touchscreen, 65K colors |
| Camera | |
| Main Specs: | No |
| Battery | |
| Type: | Li-Ion |
| Processor | |
| Cpu: | Intel Xscale PXA272 520 MHz |
| Memory | |
| Expandable: | SDIO/MMC |
| Os: | Microsoft Windows Mobile 2003 SE PocketPC |
| Body | |
| Dimensions: | 125 x 71 x 18 mm (4.92 x 2.80 x 0.71 in) |
| Weight: | 210 g (7.41 oz) |
| Sim: | Mini-SIM |
| Connectivity | |
| Wifi: | Wi-Fi 802.11b |
| Bluetooth: | Yes |
| Usb: | Proprietary |
| Headphone Jack: | No |
| Network: | GSM |
| Colors: | Silver |