| Local Name | Xenium X503 |
| Technology | GSM |
| 2G Bands | GSM 900 / 1800 / 1900 - SIM 1 | GSM 900 / 1800 / 1900 - SIM 2 |
| GPRS | Class 10 |
| EDGE | Yes |
| Announced | 2010, May |
| Status | Available. Released 2010, May |
| Dimensions | 114.5 x 49.5 x 11 mm (4.51 x 1.95 x 0.43 in) |
| Weight | 92.8 g (3.25 oz) |
| SIM | Dual SIM (Mini-SIM) |
| Display Type | TFT, 256K colors |
| Screen Size | 2.4 inches (~31.5% screen-to-body ratio) |
| Resolution | 240 x 320 pixels (~167 ppi pixel density) |
| Card Slot | microSD, up to 8 GB |
| Phone Book | 1000 entries, Photocall |
| Call Records | Yes |
| Internal Memory | 78 MB |
| Primary Camera | 3.15 MP, 2048 x 1536 pixels |
| Video | QCIF@15fps |
| Secondary Camera | No |
| Alert Types | Vibration; MP3 ringtones |
| Loudspeaker | Yes |
| 3.5mm Jack | Yes |
| WLAN | No |
| Bluetooth | v2.0, A2DP |
| GPS | No |
| Radio | Stereo FM radio with RDS |
| USB | miniUSB v2.0 |
| Messaging | SMS, MMS, Email |
| Browser | HTML |
| Games | Yes + downloadable |
| Java | Yes, MIDP 2.0 |
| Features Summary | MP3/WAV/aAAC+/WMA player, MP4/H.263 player, Organizer, Chinese/English dictionary, Voice memo, Predictive text input |
| Battery | Li-Ion 1000 mAh battery |
| Stand By | Up to 600 h |
| Talk Time | Up to 8 h |
| Colors | Black |
