| Local Name | A257 Magnet |
| Additional Information | For AT&T |
| Technology | GSM |
| 2G Bands | GSM 850 / 900 / 1800 / 1900 |
| GPRS | Class 10 |
| EDGE | Class 10 |
| Announced | 2009, March |
| Status | Available. Released 2009, May |
| Dimensions | 109 x 59 x 12 mm (4.29 x 2.32 x 0.47 in) |
| Weight | 87.6 g (3.07 oz) |
| Keyboard | QWERTY |
| SIM | Mini-SIM |
| Display Type | TFT, 65K colors |
| Screen Size | 2.2 inches (~23.7% screen-to-body ratio) |
| Resolution | 220 x 176 pixels (~128 ppi pixel density) |
| Card Slot | No |
| Phone Book | Yes, Photo call |
| Call Records | Yes |
| Internal Memory | 64 MB |
| Primary Camera | VGA, 640 x 480 pixels |
| Video | No |
| Secondary Camera | No |
| Alert Types | Vibration; Downloadable polyphonic, MP3 ringtones |
| Loudspeaker | Yes |
| 3.5mm Jack | No |
| WLAN | No |
| Bluetooth | v2.0 |
| GPS | No |
| Radio | No |
| USB | v2.0 |
| Messaging | SMS, MMS, Email, IM |
| Browser | WAP 2.0 / xHTML |
| Games | Yes |
| Java | Yes, MIDP 2.0 |
| Features Summary | MP3/MP4 player, Windows Live, Yahoo!, AOL, Currency Converter, Voice memo, Predictive text input |
| Battery | Li-Ion 800 mAh battery |
| Stand By | Up to 240 h |
| Talk Time | Up to 5 h |
| Colors | Yes |
| SAR US | 0.61 W/kg (head) 0.72 W/kg (body) |