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| Phone | BlackBerry 7750 | Samsung Convoy 4 | Samsung SCH-A990 | Pantech Duo C810 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size | ? |
2.4" diag. 4 : 3 |
? |
2.2" diag. 4 : 3 |
| Display Resolution & Type |
240 x 240 pixels LCD (Color) |
240 x 320 pixels (~167 ppi) LCD (TFT/TFD) |
240 x 320 pixels LCD (TFT/TFD) |
240 x 320 pixels (~182 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | ? | ? | ? |
| Battery | ? | 1,300 mAh | 1,000 mAh | 1,320 mAh |
| Processor | ? | 480 MHz Qualcomm QSC6185 | ? | ARM 920t PXA27x |
| RAM | ? | 256 MB | ? | ? |
| Storage | ? raw hardware | 512 MB | ? raw hardware | ? raw hardware |
| Main Camera | - | 5 megapixel | 3 megapixel | 1 megapixel |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | - | QVGA (320 x 240) | ? | QVGA (320 x 240) |
| Front Camera | - | - | - | - |
| Weight |
5.01 oz (142g) |
5.82 oz (165g) |
4.4 oz (125g) |
3.88 oz (110g) |
| Dimensions |
4.76" x 3.03" x 0.71" (121 x 77 x 18 mm) |
4.26" x 2.18" x 0.93" (108 x 55 x 23.6 mm) |
3.8" x 1.88" x 0.82" (97 x 48 x 20.8 mm) |
4.01" x 1.97" x 0.78" (102 x 50 x 19.8 mm) |
| Form Factor | Slab | Clamshell | Clamshell | Slide |
| Platform / OS | BlackBerry OS | (proprietary) | (proprietary) | Windows Mobile Standard |
| Network Bands |
CDMA: 850, 1900 |
CDMA: 850, 1900 GSM: 850, 900, 1800, 1900 |
CDMA: 850, 1900 |
WCDMA: 2, 5 GSM: 850, 900, 1800, 1900 |
| Data Technology | 1xRTT | EVDO rA | EVDO r0 | HSDPA 1.8 |
| Features | ||||
| Flashlight | - | Yes | Yes | - |
| GPS / Location | n/a | Yes | Yes | n/a |
| Ruggedized | - | Yes | - | - |
| Water-Resistant | - |
Yes IPX7 (snorkeling) |
- | - |
| Accessibility | ||||
| Adjustable Text Size | n/a | Yes | - | n/a |
| Hearing Aid Compatible | - |
Yes M3, T4 (very tele-coil compatible) |
Yes M3 (mostly compatible) |
- |
| Multiple Languages | n/a | Yes | Yes | n/a |
| TTY/TDD (Digital) | Yes | Yes | Yes | - |
| Alerts | ||||
| Extra Display | - | Yes | Yes | - |
| Ringer Profiles | Yes | - | - | Yes |
| Connectivity | ||||
| Bluetooth | - | Yes | Yes | Yes |
| USB | Yes |
Yes Micro-USB |
Yes | Yes |
| Contacts | ||||
| Picture ID | n/a | Yes | Yes | n/a |
| Ringer ID | n/a | Yes | Yes | n/a |
| Voice Dialing | n/a | Yes | Yes | n/a |
| Customization | ||||
| Custom Graphics | n/a | Yes | Yes | n/a |
| Custom Ringtones | n/a | Yes | Yes | n/a |
| Real-Music Ringers | n/a | Yes | Yes | n/a |
| Data & Network | ||||
| Data Tethering | n/a | - | Yes | n/a |
| WAP / Web Browser | n/a | Yes | Yes | n/a |
| Input | ||||
| Predictive Text Entry | n/a | Yes | Yes | n/a |
| Side Keys | Yes | Yes | Yes | Yes |
| Text Keyboard, Hardware | Yes | - | - | Yes |
| Memory | ||||
| Memory Card Slot | - | Yes | Yes | Yes |
| Messaging | ||||
| Email Client | n/a | - | - | n/a |
| EMS / Picture Messaging | n/a | - | Yes | n/a |
| Instant Messaging | n/a | - | - | n/a |
| MMS | n/a | Yes | Yes | n/a |
| Text Messaging Templates | n/a | - | Yes | n/a |
| Music | ||||
| Headphone Jack (3.5mm) | - | Yes | - | - |
| Music Player | n/a | Yes | Yes | n/a |
| Stereo Speakers | - | - | Yes | - |
| Photo & Video | ||||
| TV Output | - | - | Yes | - |
| Productivity | ||||
| Alarm | n/a | Yes | Yes | n/a |
| Calculator | n/a | Yes | Yes | n/a |
| Calendar | n/a | Yes | Yes | n/a |
| To-Do List | n/a | - | - | n/a |
| Voice Memo | n/a | Yes | Yes | n/a |
| Software | ||||
| BREW | n/a | Yes | Yes | n/a |
| Games | n/a | Yes | Yes | n/a |
| Java (J2ME) | n/a | - | - | n/a |
| Voice | ||||
| Headset Jack (2.5 mm) | n/a | - | - | n/a |
| Push-To-Talk | - | Yes | - | - |
| Speaker Phone | - | Yes | Yes | Yes |
| BlackBerry 7750 | Samsung Convoy 4 | Samsung SCH-A990 | Pantech Duo C810 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | BlackBerry 7750 | Samsung Convoy 4 | Samsung SCH-A990 | Pantech Duo C810 |
