| Local Name | T559 Comeback |
| Additional Information | For T-Mobile |
| Technology | GSM / UMTS |
| 3G Bands | UMTS 2100 |
| 2G Bands | GSM 850 / 900 / 1800 / 1900 |
| Speed | Yes |
| GPRS | Class 10 |
| EDGE | Class 10 |
| Announced | 2009, July |
| Status | Available. Released 2009, July |
| Dimensions | 109.2 x 55.9 x 17.8 mm (4.30 x 2.20 x 0.70 in) |
| Weight | 130.4 g (4.59 oz) |
| Keyboard | QWERTY |
| SIM | Mini-SIM |
| Display Type | TFT, 256K colors |
| Screen Size | 2.9 inches (~42.7% screen-to-body ratio) |
| Resolution | 320 x 240 pixels (~138 ppi pixel density) | External 1.63 inch color display(128 x 128 pixels) |
| Card Slot | microSD, up to 16 GB |
| Phone Book | 1000 entries, Photocall |
| Call Records | 30 dialed, 30 received, 30 missed calls |
| Primary Camera | 2 MP, 1600 x 1200 pixels |
| Video | Yes |
| Secondary Camera | No |
| Alert Types | Vibration; Downloadable polyphonic, MP3 ringtones |
| Loudspeaker | Yes |
| 3.5mm Jack | No |
| WLAN | No |
| Bluetooth | v2.0, A2DP |
| GPS | Yes |
| Radio | No |
| USB | v2.0 |
| Messaging | SMS, MMS, Email |
| Browser | WAP 2.0/xHTML, HTML |
| Games | Yes |
| Java | Yes, MIDP 2.0 |
| Features Summary | MP4 player, MP3 player, Organizer, Predictive text input |
| Battery | Li-Ion 960 mAh battery |
| Stand By | Up to 288 h |
| Talk Time | Up to 5 h 30 min |
| Colors | Pearl White Plum, Frost Silver Cherry |
| SAR US | 0.88 W/kg (head) 0.76 W/kg (body) |
| SAR EU | 0.91 W/kg (head) |