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| Phone | LG Tritan AX-840 / UX-840 | Samsung SCH-U550 | Pantech Matrix Pro C820 |
| Current U.S. Carriers | (none) | (none) | (none) |
| Global Availability | Released | Released | Released |
| Specifications | |||
|---|---|---|---|
| Display Size |
3" diag. 5 : 3 |
2.1" diag. 4 : 3 |
2.4" diag. 4 : 3 |
| Display Resolution & Type |
240 x 400 pixels (~155 ppi) LCD (TFT/TFD) |
176 x 220 pixels (~134 ppi) LCD (TFT/TFD) |
240 x 320 pixels (~167 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | ? | ? |
| Battery | 950 mAh | 800 mAh | 1,320 mAh |
| Processor | ? | ? | 528 MHz ARM 11 |
| RAM | ? | ? | ? |
| Storage | ? raw hardware | ? raw hardware | ? raw hardware |
| Main Camera | 3 megapixel | 1 megapixel | 2 megapixel |
| Wide Camera | - | - | - |
| Tele Camera | - | - | - |
| Video Capture | QVGA (320 x 240) | ? | QCIF (176 x 144) |
| Front Camera | - | - | - |
| Weight |
5.03 oz (143g) |
3.17 oz (90g) |
5.34 oz (151g) |
| Dimensions |
4.45" x 2.24" x 0.65" (113 x 57 x 16.5 mm) |
3.76" x 1.92" x 0.68" (96 x 49 x 17.3 mm) |
4.2" x 2" x 0.9" (107 x 51 x 22.9 mm) |
| Form Factor | Slide | Clamshell | Slide |
| Platform / OS | (proprietary) | (proprietary) | Windows Mobile Standard |
| Network Bands |
CDMA: 850, 1900 |
CDMA: 850, 1900 |
WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
| Data Technology | EVDO r0 | EVDO r0 | HSDPA 3.6 |
| Features | |||
| GPS / Location | Yes | Yes | n/a |
| Accessibility | |||
| Adjustable Text Size | Yes | - | n/a |
| Hearing Aid Compatible |
Yes M4, T4 (very tele-coil compatible) |
Yes M4, T4 (very tele-coil compatible) |
- |
| Multiple Languages | Yes | Yes | n/a |
| TTY/TDD (Digital) | Yes | - | Yes |
| Alerts | |||
| Extra Display | - | Yes | - |
| Ringer Profiles | - | - | Yes |
| Connectivity | |||
| Bluetooth | Yes | Yes | Yes |
| USB |
Yes Micro-USB |
- | Yes |
| Contacts | |||
| Picture ID | Yes | 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 | n/a |
| Real-Music Ringers | Yes | Yes | n/a |
| Data & Network | |||
| Data Tethering | - | Yes | n/a |
| WAP / Web Browser | Yes | Yes | n/a |
| Input | |||
| Predictive Text Entry | - | Yes | n/a |
| Side Keys | Yes | Yes | Yes |
| Text Keyboard, Hardware | Yes | - | Yes |
| Touch Screen | Yes | - | - |
| Memory | |||
| Memory Card Slot | Yes | Yes | Yes |
| Messaging | |||
| Email Client | Yes | - | n/a |
| EMS / Picture Messaging | - | Yes | n/a |
| Instant Messaging | Yes | - | n/a |
| MMS | Yes | Yes | n/a |
| Text Messaging Templates | Yes | Yes | n/a |
| Music | |||
| Headphone Jack (3.5mm) | Yes | - | - |
| Music Player | Yes | Yes | n/a |
| Productivity | |||
| Alarm | Yes | Yes | n/a |
| Calculator | Yes | Yes | n/a |
| Calendar | Yes | Yes | n/a |
| To-Do List | - | - | n/a |
| Voice Memo | Yes | Yes | n/a |
| Software | |||
| BREW | Yes | Yes | n/a |
| Games | Yes | Yes | n/a |
| Java (J2ME) | - | - | n/a |
| Voice | |||
| Headset Jack (2.5 mm) | - | Yes | n/a |
| Speaker Phone | Yes | Yes | Yes |
| LG Tritan AX-840 / UX-840 | Samsung SCH-U550 | Pantech Matrix Pro C820 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | LG Tritan AX-840 / UX-840 | Samsung SCH-U550 | Pantech Matrix Pro C820 |
