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Samsung A657
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Samsung A657 Full Specifications
| Announced | 2009, April. Released 2009, Q2 |
| Status | Discontinued |
| Technology | GSM / HSPA |
| 2G | GSM 850 / 900 / 1800 / 1900 |
| 3G | HSDPA 850 / 1900 |
| Speed | HSPA 3.6/0.384 Mbps |
| GPRS | Class 10 |
| Edge | Class 10 |
| 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 |
| Type | TFT, 256K colors |
| Size | 1.9 inches (~19.0% screen-to-body ratio) |
| Resolution | 176 x 220 pixels (~148 ppi pixel density) |
| Card Slot | microSD, up to 8 GB (dedicated slot) |
| Internal | 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 |
| Java | Yes, MIDP 2.0 |
| Battery | Removable 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)     |