| Local Name | T739 Katalyst |
| Additional Information | For T-mobile |
| Technology | GSM |
| 2G Bands | GSM 850 / 900 / 1800 / 1900 |
| GPRS | Class 10 |
| EDGE | Class 10 |
| Announced | 2007, November. Released 2007, December |
| Status | Discontinued |
| Dimensions | 100.8 x 50.3 x 16.5 mm (3.97 x 1.98 x 0.65 in) |
| Weight | 116 g (4.09 oz) |
| SIM | Mini-SIM |
| Display Type | TFT, 256K colors |
| Screen Size | 2.1 inches (~27.4% screen-to-body ratio) |
| Resolution | 176 x 220 pixels (~134 ppi pixel density) |
| Card Slot | microSD, up to 4 GB |
| Phone Book | 1000 entries |
| Call Records | 30 dialed, 30 received, 30 missed calls |
| Internal Memory | 5 MB |
| Primary Camera | 1.3 MP, 1280 x 960 pixels |
| Video | Yes |
| Secondary Camera | No |
| Alert Types | Vibration; Downloadable polyphonic, MP3 ringtones |
| Loudspeaker | Yes |
| 3.5mm Jack | No |
| WLAN | Wi-Fi 802.11b/g - UMA only |
| Bluetooth | Yes |
| GPS | No |
| Radio | No |
| USB | Yes |
| Messaging | SMS, MMS, Instant Messaging |
| Browser | WAP 2.0/xHTML |
| Games | Downloadable |
| Java | Yes, MIDP 2.0 |
| Features Summary | MP3 player, Organizer, Voice memo, Predictive text input |
| Battery | Li-Ion 960 mAh battery |
| Stand By | Up to 240 h |
| Talk Time | Up to 5 h |
| Colors | Silver |
| SAR US | 0.62 W/kg (head) 0.47 W/kg (body) |
