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| Phone | Pantech Matrix Pro C820 | Siemens CT66 / C66 / C65 / C71 / C70 | Palm Treo 750 |
| Current U.S. Carriers | (none) | (none) | (none) |
| Global Availability | Released | Released | Released |
| Specifications | |||
|---|---|---|---|
| Display Size |
2.4" diag. 4 : 3 |
? | ? |
| Display Resolution & Type |
240 x 320 pixels (~167 ppi) LCD (TFT/TFD) |
130 x 130 pixels LCD (Color) |
240 x 240 pixels LCD (TFT/TFD) |
| Display Refresh | ? | ? | ? |
| Battery | 1,320 mAh | 600 mAh | 1,200 mAh |
| Processor | 528 MHz ARM 11 | ? | 300 MHz Samsung |
| RAM | ? | ? | ? |
| Storage | ? raw hardware | ? raw hardware | ? raw hardware |
| Main Camera | 2 megapixel | Yes | 1 megapixel |
| Wide Camera | - | - | - |
| Tele Camera | - | - | - |
| Video Capture | QCIF (176 x 144) | - | CIF (352 x 288) |
| Front Camera | - | - | - |
| Weight |
5.34 oz (151g) |
3 oz (85g) |
5.4 oz (153g) |
| Dimensions |
4.2" x 2" x 0.9" (107 x 51 x 22.9 mm) |
4.1" x 1.8" x 0.7" (104 x 46 x 17.8 mm) |
4.37" x 2.28" x 0.87" (111 x 58 x 22.1 mm) |
| Form Factor | Slide | Slab | Slab |
| Platform / OS | Windows Mobile Standard | (proprietary) | Windows Mobile Professional |
| Network Bands |
WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
GSM: 850, 1800, 1900 |
WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
| Data Technology | HSDPA 3.6 | GPRS | WCDMA (UMTS) |
| Features | |||
| GPS / Location | n/a | - | n/a |
| Accessibility | |||
| Multiple Languages | n/a | Yes | n/a |
| TTY/TDD (Digital) | Yes | - | Yes |
| Alerts | |||
| Ringer Profiles | Yes | Yes | - |
| Connectivity | |||
| Bluetooth | Yes | - | Yes |
| Infrared (IR) | - | Yes | Yes |
| USB | Yes | Yes | Yes |
| Contacts | |||
| Picture ID | n/a | Yes | n/a |
| Ringer ID | n/a | Yes | n/a |
| Voice Dialing | n/a | - | n/a |
| Customization | |||
| Changeable Body Plates | - | Yes | - |
| Custom Graphics | n/a | Yes | n/a |
| Custom Ringtones | n/a | Yes | n/a |
| Real-Music Ringers | n/a | - | n/a |
| Data & Network | |||
| Data Tethering | n/a | - | n/a |
| External Antenna Jack | n/a | - | n/a |
| WAP / Web Browser | n/a | Yes | n/a |
| Input | |||
| Predictive Text Entry | n/a | Yes | n/a |
| Side Keys | Yes | - | Yes |
| Stylus | - | - | Yes |
| Text Keyboard, Hardware | Yes | - | Yes |
| Touch Screen | - | - |
Yes Resistive |
| Memory | |||
| Memory Card Slot | 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 | n/a |
| Text Messaging Templates | n/a | Yes | n/a |
| Music | |||
| Music Player | n/a | - | n/a |
| Productivity | |||
| Alarm | n/a | Yes | n/a |
| Calculator | n/a | Yes | n/a |
| Calendar | n/a | Yes | n/a |
| To-Do List | n/a | Yes | n/a |
| Voice Memo | n/a | Yes | n/a |
| Software | |||
| Games | n/a | Yes | n/a |
| Java (J2ME) | n/a | Yes | n/a |
| Voice | |||
| Call Screening | - | Yes | - |
| Headset Jack (2.5 mm) | n/a | - | n/a |
| Push-To-Talk | - | Yes * | - |
| Speaker Phone | Yes | Yes | Yes |
| * Some versions only | |||
| Pantech Matrix Pro C820 | Siemens CT66 / C66 / C65 / C71 / C70 | Palm Treo 750 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Pantech Matrix Pro C820 | Siemens CT66 / C66 / C65 / C71 / C70 | Palm Treo 750 |
