| Local Name | X660 |
| Technology | GSM |
| 2G Bands | GSM 900 / 1800 / 1900 |
| GPRS | Class 10 |
| EDGE | No |
| Announced | 2005, 4Q |
| Status | Discontinued |
| Dimensions | 89.5 x 45 x 21.5 mm (3.52 x 1.77 x 0.85 in) |
| Weight | 78 g (2.75 oz) |
| SIM | Mini-SIM |
| Display Type | UFB, 65K colors |
| Resolution | 128 x 160 pixels, 8 lines | Second external mono display (96 x 96 pixels) - Wallpapers |
| Card Slot | No |
| Phone Book | 500 entries, Photo call |
| Call Records | 20 dialed, 20 received, 20 missed calls |
| Internal Memory | 8 MB | 200 short messages |
| Primary Camera | VGA, 640 x 480 pixels |
| Video | Yes |
| Secondary Camera | No |
| Alert Types | Vibration; Downloadable polyphonic, MP3, AAC ringtones |
| Loudspeaker | Yes |
| 3.5mm Jack | No |
| WLAN | No |
| Bluetooth | No |
| GPS | No |
| Infrared Port | Yes |
| Radio | No |
| USB | Yes |
| Messaging | SMS, MMS |
| Browser | WAP 2.0/xHTML |
| Games | Bobby Carrot, Airship Racing |
| Java | Yes, MIDP 2.0 |
| Features Summary | Predictive text input, Organizer |
| Battery | Li-Ion 800 mAh battery |
| Stand By | Up to 200 h |
| Talk Time | Up to 3 h 30 min |
| SAR EU | 0.82 W/kg (head) |