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| Phone | Samsung SGH-A657 | Sony Ericsson T237 / T290a | Kyocera DuraCore / DuraShock | Sanyo SCP-3100 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size | ? | ? |
2" diag. 4 : 3 |
? |
| Display Resolution & Type |
176 x 220 pixels LCD (TFT/TFD) |
101 x 80 pixels LCD (STN) |
240 x 320 pixels (~200 ppi) LCD (TFT/TFD) |
128 x 160 pixels LCD (STN) |
| Display Refresh | ? | ? | ? | ? |
| Battery | 1,420 mAh | ? | 1,360 mAh | 1,000 mAh |
| Processor | ? | ? | Qualcomm QSC6085 | ? |
| RAM | ? | ? | ? | ? |
| Storage | ? raw hardware | ? raw hardware | ? raw hardware | ? raw hardware |
| Main Camera | - | - | - | Yes |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | - | - | - | - |
| Front Camera | - | - | - | - |
| Weight |
4.34 oz (123g) |
2.79 oz (79g) |
4.44 oz (126g) |
3.5 oz (99g) |
| Dimensions |
4.53" x 2.05" x 0.77" (115 x 52 x 19.6 mm) |
4" x 1.71" x 0.71" (102 x 43 x 18 mm) |
3.88" x 1.96" x 0.94" (99 x 50 x 23.9 mm) |
3.31" x 1.83" x 1.01" (84 x 46 x 25.7 mm) |
| Form Factor | Slab | Slab | Clamshell | Clamshell |
| Platform / OS | (proprietary) | (proprietary) | (proprietary) | (proprietary) |
| Network Bands |
WCDMA: 2, 5 GSM: 850, 900, 1800, 1900 |
GSM: 850, 1900 |
CDMA: 800, 850, 1900 |
CDMA: 850, 1900 AMPS: 850 |
| Data Technology | HSDPA 3.6 | GPRS | EVDO rA | 1xRTT |
| Features | ||||
| Flashlight | Yes | - | - | - |
| GPS / Location | Yes | - | Yes | Yes |
| Ruggedized | Yes | - | Yes | - |
| Accessibility | ||||
| Adjustable Text Size | - | - | Yes | - |
| Hearing Aid Compatible | - | - | Yes | Yes |
| Multiple Languages | Yes | Yes | Yes | Yes |
| TTY/TDD (Digital) | Yes | Yes | Yes | Yes |
| Alerts | ||||
| Extra Display | - | - | Yes | Yes |
| Connectivity | ||||
| Bluetooth | Yes | - | Yes | - |
| USB | Yes | Yes | Yes | Yes |
| Contacts | ||||
| Picture ID | Yes | Yes | - | Yes |
| Ringer ID | Yes | Yes | Yes | Yes |
| Voice Dialing | - | Yes | Yes | Yes |
| Customization | ||||
| Custom Graphics | Yes | Yes | Yes | Yes |
| Custom Ringtones | Yes | Yes | Yes | Yes |
| Real-Music Ringers | Yes | - | Yes | - |
| Data & Network | ||||
| Data Tethering | Yes | - | - | - |
| External Antenna Jack | - | - | - | Yes |
| WAP / Web Browser | Yes | Yes | Yes | Yes |
| Input | ||||
| Predictive Text Entry | Yes | Yes | Yes | Yes |
| Side Keys | Yes | Yes | Yes | Yes |
| Memory | ||||
| Memory Card Slot | Yes | - | - | - |
| Messaging | ||||
| Email Client | Yes | Yes | - | - |
| EMS / Picture Messaging | - | Yes | - | - |
| Instant Messaging | Yes | - | - | - |
| MMS | Yes | Yes | Yes | - |
| Text Messaging Templates | Yes | Yes | Yes | - |
| Music | ||||
| Music Player | Yes | - | - | - |
| Productivity | ||||
| Alarm | Yes | Yes | Yes | Yes |
| Calculator | Yes | Yes | Yes | Yes |
| Calendar | Yes | Yes | Yes | Yes |
| To-Do List | Yes | - | - | - |
| Voice Memo | Yes | Yes | Yes | Yes |
| Software | ||||
| Games | Yes | Yes | Yes | Yes |
| Java (J2ME) | Yes | - | Yes | Yes |
| Voice | ||||
| Call Screening | - | - | - | Yes |
| Headset Jack (2.5 mm) | - | - | Yes | Yes |
| Push-To-Talk | Yes | - | Yes * | Yes |
| Speaker Phone | Yes | Yes | Yes | Yes |
| * Some versions only | ||||
| Samsung SGH-A657 | Sony Ericsson T237 / T290a | Kyocera DuraCore / DuraShock | Sanyo SCP-3100 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SGH-A657 | Sony Ericsson T237 / T290a | Kyocera DuraCore / DuraShock | Sanyo SCP-3100 |
