| Local Name | A657 |
| Additional Information | For AT&T |
| Technology | GSM / HSPA |
| 3G Bands | HSDPA 850 / 1900 |
| 2G Bands | GSM 850 / 900 / 1800 / 1900 |
| Speed | HSPA 3.6/0.384 Mbps |
| GPRS | Class 10 |
| EDGE | Class 10 |
| Announced | 2009, April |
| Status | Available. Released 2009, Q2 |
| Dimensions | 115 x 52 x 19.5 mm (4.53 x 2.05 x 0.77 in) |
| Weight | 123 g (4.34 oz) |
| SIM | Mini-SIM |
| Body | Dust, shock and splash resistant - Flashlight |
| Display Type | TFT, 256K colors |
| Screen Size | 1.9 inches (~19.0% screen-to-body ratio) |
| Resolution | 176 x 220 pixels (~148 ppi pixel density) | Wallpapers |
| Card Slot | microSD, up to 8 GB |
| Phone Book | 1000 entries |
| Call Records | Yes |
| Internal Memory | 128 MB |
| Alert Types | Vibration; Polyphonic(72), MP3 ringtones |
| Loudspeaker | Yes |
| 3.5mm Jack | No |
| WLAN | No |
| Bluetooth | v2.0, A2DP |
| GPS | No |
| Radio | No |
| USB | v2.0 |
| Messaging | SMS, MMS, Email |
| Browser | WAP 2.0/xHTML |
| Games | Yes + downloadable |
| Java | Yes, MIDP 2.0 |
| Features Summary | MP3/eAAC+/WMA player, MP4/H.263 player, Push to Talk, Organizer, Voice memo, Stopwatch, Predictive text input |
| Battery | Li-Ion 1420 mAh battery |
| Stand By | Up to 250 h |
| Talk Time | Up to 3 h |
| Colors | Black |
| SAR US | 1.46 W/kg (head) 0.73 W/kg (body) |