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| Phone | Kyocera DuraCore / DuraShock | Ericsson R520 | Samsung SGH-X640 | BlackBerry 7750 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size |
2" diag. 4 : 3 |
? | ? | ? |
| Display Resolution & Type |
240 x 320 pixels (~200 ppi) LCD (TFT/TFD) |
? |
128 x 160 pixels LCD (TFT/TFD) |
240 x 240 pixels LCD (Color) |
| Display Refresh | ? | ? | ? | ? |
| Battery | 1,360 mAh | ? | 800 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 |
4.44 oz (126g) |
4.23 oz (120g) |
3 oz (85g) |
5.01 oz (142g) |
| Dimensions |
3.88" x 1.96" x 0.94" (99 x 50 x 23.9 mm) |
5.12" x 1.97" x 0.63" (130 x 50 x 16 mm) |
3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm) |
4.76" x 3.03" x 0.71" (121 x 77 x 18 mm) |
| Form Factor | Clamshell | Slab | Clamshell | Slab |
| Platform / OS | (proprietary) | (proprietary) | (proprietary) | BlackBerry OS |
| Network Bands |
CDMA: 800, 850, 1900 |
GSM: 900, 1800, 1900 |
GSM: 900, 1800, 1900 |
CDMA: 850, 1900 |
| Data Technology | EVDO rA | GPRS | GPRS | 1xRTT |
| Features | ||||
| GPS / Location | Yes | - | - | n/a |
| Ruggedized | Yes | - | - | - |
| Accessibility | ||||
| Adjustable Text Size | Yes | - | - | n/a |
| Hearing Aid Compatible |
Yes M4, T4 (very tele-coil compatible) |
- | - | - |
| Multiple Languages | Yes | Yes | Yes | n/a |
| TTY/TDD (Digital) | Yes | - | - | Yes |
| Alerts | ||||
| Extra Display | Yes | - | - | - |
| Ringer Profiles | - | Yes | - | Yes |
| Connectivity | ||||
| Bluetooth | Yes | Yes | - | - |
| Infrared (IR) | - | Yes | - | - |
| USB | Yes | - | - | Yes |
| Contacts | ||||
| Picture ID | - | - | Yes | n/a |
| Ringer ID | Yes | - | Yes | n/a |
| Voice Dialing | Yes | Yes | - | n/a |
| Customization | ||||
| Custom Graphics | Yes | - | Yes | n/a |
| Custom Ringtones | Yes | Yes | Yes | n/a |
| Real-Music Ringers | Yes | - | - | n/a |
| Data & Network | ||||
| Data Tethering | - | Yes | - | n/a |
| WAP / Web Browser | Yes | Yes | Yes | n/a |
| Input | ||||
| Predictive Text Entry | Yes | Yes | Yes | n/a |
| Side Keys | Yes | Yes | Yes | Yes |
| Text Keyboard, Hardware | - | - | - | Yes |
| Messaging | ||||
| Email Client | - | - | - | n/a |
| EMS / Picture Messaging | - | - | Yes | n/a |
| MMS | Yes | - | Yes | n/a |
| Text Messaging Templates | Yes | Yes | Yes | n/a |
| Productivity | ||||
| Alarm | Yes | Yes | Yes | n/a |
| Calculator | Yes | Yes | Yes | n/a |
| Calendar | Yes | Yes | Yes | n/a |
| To-Do List | - | - | Yes | n/a |
| Voice Memo | Yes | Yes | Yes | n/a |
| Software | ||||
| Games | Yes | Yes | Yes | n/a |
| Java (J2ME) | Yes | - | Yes | n/a |
| Voice | ||||
| Headset Jack (2.5 mm) | Yes | - | Yes | n/a |
| Push-To-Talk | Yes * | - | - | - |
| Speaker Phone | Yes | Yes | Yes | - |
| * Some versions only | ||||
| Kyocera DuraCore / DuraShock | Ericsson R520 | Samsung SGH-X640 | BlackBerry 7750 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Kyocera DuraCore / DuraShock | Ericsson R520 | Samsung SGH-X640 | BlackBerry 7750 |
