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| Phone | Ericsson T28 World | Ericsson R520 | Kyocera KX12 | BlackBerry 7280 | Siemens CF75 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released | Not yet released |
| Specifications | |||||
|---|---|---|---|---|---|
| Display Size | ? | ? | ? | ? | ? |
| Display Resolution & Type | ? | ? |
128 x 128 pixels LCD (STN) |
240 x 160 pixels LCD (Color) |
128 x 160 pixels LCD (STN) |
| Display Refresh | ? | ? | ? | ? | ? |
| Battery | 500 mAh | ? | 1,800 mAh | ? | 600 mAh |
| Processor | ? | ? | ? | ? | ? |
| RAM | ? | ? | ? | ? | ? |
| Storage | ? raw hardware | ? raw hardware | ? raw hardware | ? raw hardware | ? raw hardware |
| Main Camera | - | - | - | - | Yes |
| Wide Camera | - | - | - | - | - |
| Tele Camera | - | - | - | - | - |
| Video Capture | - | - | - | - | - |
| Front Camera | - | - | - | - | - |
| Weight |
3.14 oz (89g) |
4.23 oz (120g) |
4.62 oz (131g) |
4.9 oz (139g) |
3.17 oz (90g) |
| Dimensions |
3.9" x 2" x 0.6" (99 x 51 x 15.2 mm) |
5.12" x 1.97" x 0.63" (130 x 50 x 16 mm) |
4.33" x 1.97" x 1.02" (110 x 50 x 25.9 mm) |
4.4" x 2.9" x 0.94" (112 x 74 x 23.9 mm) |
3.43" x 1.73" x 1.26" (87 x 44 x 32 mm) |
| Form Factor | Flip | Slab | Slab | Slab | Clamshell |
| Platform / OS | (proprietary) | (proprietary) | (proprietary) | BlackBerry OS | (proprietary) |
| Network Bands |
GSM: 900, 1900 |
GSM: 900, 1800, 1900 |
CDMA: 850, 1900 AMPS: 850 |
GSM: 850, 1800, 1900 |
GSM: 900, 1800, 1900 |
| Data Technology | - | GPRS | 1xRTT | GPRS | EDGE |
| Features | |||||
| Flashlight | - | - | Yes | - | - |
| GPS / Location | - | - | Yes | n/a | - |
| Ruggedized | - | - | Yes | - | - |
| Accessibility | |||||
| Multiple Languages | - | Yes | Yes | n/a | Yes |
| TTY/TDD (Digital) | - | - | Yes | - | - |
| Alerts | |||||
| Extra Display | - | - | - | - | Yes |
| Ringer Profiles | Yes | Yes | - | - | - |
| Connectivity | |||||
| Bluetooth | - |
Yes HSP, Sync, OPP, DUN |
- | - | - |
| Infrared (IR) | - | Yes | - | - | Yes |
| USB | - | - | - | Yes | Yes |
| Contacts | |||||
| Picture ID | - | - | Yes | n/a | - |
| Ringer ID | - | - | Yes | n/a | - |
| Voice Dialing | Yes | Yes | Yes | n/a | - |
| Customization | |||||
| Custom Graphics | - | - | Yes | n/a | Yes |
| Custom Ringtones | Yes | Yes | Yes | n/a | Yes |
| Data & Network | |||||
| Data Tethering | Yes | Yes | Yes | n/a | Yes |
| WAP / Web Browser | - | Yes | Yes | n/a | Yes |
| Input | |||||
| Predictive Text Entry | - | Yes | Yes | n/a | Yes |
| Side Keys | Yes | Yes | Yes | Yes | Yes |
| Text Keyboard, Hardware | - | - | - | Yes | - |
| Messaging | |||||
| Email Client | - | - | - | n/a | Yes |
| EMS / Picture Messaging | - | - | Yes | n/a | Yes |
| MMS | - | - | - | n/a | Yes |
| Text Messaging Templates | - | Yes | Yes | n/a | Yes |
| Productivity | |||||
| Alarm | Yes | Yes | Yes | n/a | Yes |
| Calculator | Yes | Yes | Yes | n/a | Yes |
| Calendar | - | Yes | Yes | n/a | Yes |
| To-Do List | - | - | - | n/a | Yes |
| Voice Memo | - | Yes | Yes | n/a | Yes |
| Software | |||||
| BREW | - | - | Yes * | n/a | - |
| Games | Yes | Yes | Yes | n/a | Yes |
| Java (J2ME) | - | - | - | n/a | Yes |
| Voice | |||||
| Headset Jack (2.5 mm) | - | - | Yes | n/a | - |
| Push-To-Talk | - | - | Yes | - | Yes |
| Speaker Phone | - | Yes | Yes | - | Yes |
| * Some versions only | |||||
| Ericsson T28 World | Ericsson R520 | Kyocera KX12 | BlackBerry 7280 | Siemens CF75 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Ericsson T28 World | Ericsson R520 | Kyocera KX12 | BlackBerry 7280 | Siemens CF75 |
