| Local Name | X550 |
| Technology | GSM |
| 2G Bands | GSM 900 / 1800 / 1900 |
| GPRS | Class 10 |
| EDGE | Class 10 |
| Announced | 2009, September. Released 2009, Q4 |
| Status | Discontinued |
| Dimensions | 112 x 45 x 11.7 mm (4.41 x 1.77 x 0.46 in) |
| Weight | 90 g (3.17 oz) |
| SIM | Mini-SIM |
| Display Type | TFT, 256K colors |
| Resolution | 240 x 320 pixels | Screensavers and wallpapers |
| Card Slot | microSD |
| Phone Book | Yes, Photocall |
| Call Records | 30 received, dialed and missed calls |
| Primary Camera | 3.15 MP, 2048 x 1536 pixels, autofocus |
| Video | CIF@15fps |
| Secondary Camera | No |
| Alert Types | Vibration, MP3 ringtones |
| Loudspeaker | Yes |
| 3.5mm Jack | No |
| WLAN | No |
| Bluetooth | v2.0, A2DP |
| GPS | No |
| Radio | FM radio with RDS |
| USB | miniUSB v1.1 |
| Messaging | SMS (threaded view), MMS, Email |
| Browser | WAP 2.0/xHTML |
| Games | Yes + downloadable |
| Java | Yes, MIDP 2.0 |
| Features Summary | MP3/WAV/AAC player, MP4/3gp player, Voice memo, Organizer, Predictive text input |
| Battery | Li-Po battery |
| Stand By | Up to 720 h |
| Talk Time | Up to 8 h |
| Colors | Black |