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| Phone | Siemens SL56 | Samsung SPH-A520 | BlackBerry 7750 | BlackBerry 8820 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size | ? | ? | ? | ? |
| Display Resolution & Type |
101 x 80 pixels LCD (STN) |
? LCD (STN) |
240 x 240 pixels LCD (Color) |
320 x 240 pixels LCD (TFT/TFD) |
| Display Refresh | ? | ? | ? | ? |
| Battery | 500 mAh | ? | ? | 1,400 mAh |
| Processor | ? | ? | ? | ? |
| RAM | ? | ? | ? | ? |
| Storage | ? raw hardware | ? raw hardware | ? raw hardware | ? raw hardware |
| Main Camera | - | - | - | - |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | - | - | - | - |
| Front Camera | - | - | - | - |
| Weight |
2.79 oz (79g) |
3.6 oz (102g) |
5.01 oz (142g) |
4.73 oz (134g) |
| Dimensions |
3.21" x 1.75" x 0.86" (82 x 44 x 21.8 mm) |
3.46" x 1.83" x 0.91" (88 x 46 x 23.1 mm) |
4.76" x 3.03" x 0.71" (121 x 77 x 18 mm) |
4.49" x 2.6" x 0.55" (114 x 66 x 14 mm) |
| Form Factor | Slide | Clamshell | Slab | Slab |
| Platform / OS | (proprietary) | (proprietary) | BlackBerry OS | BlackBerry OS |
| Network Bands |
GSM: 850, 1900 |
CDMA: 850, 1900 AMPS: 850 |
CDMA: 850, 1900 |
GSM: 850, 900, 1800, 1900 |
| Data Technology | GPRS | 1xRTT | 1xRTT | EDGE |
| Features | ||||
| GPS / Location | - | Yes | n/a | n/a |
| Accessibility | ||||
| Multiple Languages | Yes | Yes | n/a | n/a |
| TTY/TDD (Digital) | - | - | Yes | Yes |
| Alerts | ||||
| Extra Display | - | Yes | - | - |
| Ringer Profiles | Yes | - | Yes | Yes |
| Connectivity | ||||
| Bluetooth | - | - | - | Yes |
| Infrared (IR) | Yes | - | - | - |
| USB | - | - | Yes |
Yes Mini-USB |
| Wi-Fi | - | - | - | Yes |
| Contacts | ||||
| Picture ID | Yes | Yes | n/a | n/a |
| Ringer ID | Yes | Yes | n/a | n/a |
| Voice Dialing | Yes | Yes | n/a | n/a |
| Customization | ||||
| Custom Graphics | Yes | Yes | n/a | n/a |
| Custom Ringtones | Yes | Yes | n/a | n/a |
| Data & Network | ||||
| Data Tethering | Yes | Yes | n/a | n/a |
| WAP / Web Browser | Yes | Yes | n/a | n/a |
| Input | ||||
| Predictive Text Entry | Yes | Yes | n/a | n/a |
| Side Keys | Yes | Yes | Yes | Yes |
| Text Keyboard, Hardware | - | - | Yes | Yes |
| Memory | ||||
| Memory Card Slot | - | - | - | Yes |
| Messaging | ||||
| Email Client | Yes | - | n/a | n/a |
| EMS / Picture Messaging | Yes | - | n/a | n/a |
| MMS | Yes | - | n/a | n/a |
| Text Messaging Templates | Yes | - | n/a | n/a |
| Productivity | ||||
| Alarm | Yes | Yes | n/a | n/a |
| Calculator | Yes | Yes | n/a | n/a |
| Calendar | Yes | Yes | n/a | n/a |
| To-Do List | Yes | Yes | n/a | n/a |
| Voice Memo | Yes | Yes | n/a | n/a |
| Software | ||||
| Games | Yes | Yes | n/a | n/a |
| Java (J2ME) | Yes | - | n/a | n/a |
| Voice | ||||
| Headset Jack (2.5 mm) | - | Yes | n/a | n/a |
| Push-To-Talk | - | - | - | Yes * |
| Speaker Phone | Yes | - | - | Yes |
| * Some versions only | ||||
| Siemens SL56 | Samsung SPH-A520 | BlackBerry 7750 | BlackBerry 8820 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Siemens SL56 | Samsung SPH-A520 | BlackBerry 7750 | BlackBerry 8820 |
