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| Phone | Siemens SL55 | Pantech Matrix Pro C820 | Samsung M400 | Motorola V551 / V330 / V547 / V555 / V557 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size | ? |
2.4" diag. 4 : 3 |
2.4" diag. 4 : 3 |
? |
| Display Resolution & Type |
101 x 80 pixels LCD (STN) |
240 x 320 pixels (~167 ppi) LCD (TFT/TFD) |
240 x 320 pixels (~167 ppi) LCD (TFT/TFD) |
176 x 220 pixels LCD (TFT/TFD) |
| Display Refresh | ? | ? | ? | ? |
| Battery | 500 mAh | 1,320 mAh | 1,000 mAh | 820 mAh |
| Processor | ? | 528 MHz ARM 11 | 400 MHz Qualcomm QSC6155 | ? |
| RAM | ? | ? | 128 MB | ? |
| Storage | ? raw hardware | ? raw hardware | 256 MB | ? raw hardware |
| Main Camera | - | 2 megapixel | 1 megapixel | Yes |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | - | QCIF (176 x 144) | - | ? |
| Front Camera | - | - | - | - |
| Weight |
2.79 oz (79g) |
5.34 oz (151g) |
3.7 oz (105g) |
4.23 oz (120g) |
| Dimensions |
3.21" x 1.75" x 0.86" (82 x 44 x 21.8 mm) |
4.2" x 2" x 0.9" (107 x 51 x 22.9 mm) |
3.8" x 1.9" x 0.7" (97 x 48 x 17.8 mm) |
3.5" x 1.93" x 0.97" (89 x 49 x 24.6 mm) |
| Form Factor | Slide | Slide | Clamshell | Clamshell |
| Platform / OS | (proprietary) | Windows Mobile Standard | (proprietary) | (proprietary) |
| Network Bands |
GSM: 900, 1800, 1900 |
WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
CDMA: 800, 850, 1900 |
GSM: 850, 900, 1800, 1900 |
| Data Technology | GPRS | HSDPA 3.6 | 1xRTT | EDGE |
| Features | ||||
| GPS / Location | - | n/a | Yes | - |
| Accessibility | ||||
| Adjustable Text Size | - | n/a | Yes | - |
| Hearing Aid Compatible | - | - | Yes | - |
| Multiple Languages | Yes | n/a | Yes | Yes |
| TTY/TDD (Digital) | - | Yes | Yes | Yes |
| Alerts | ||||
| Extra Display | - | - | Yes | Yes |
| Ringer Profiles | Yes | Yes | - | Yes |
| Connectivity | ||||
| Bluetooth | - | Yes | Yes | Yes |
| Infrared (IR) | Yes | - | - | - |
| USB | - | Yes |
Yes Micro-USB |
Yes |
| Contacts | ||||
| Picture ID | Yes | n/a | Yes | Yes |
| Ringer ID | Yes | n/a | Yes | Yes |
| Voice Dialing | Yes | n/a | Yes | Yes |
| Customization | ||||
| Custom Graphics | Yes | n/a | Yes | Yes |
| Custom Ringtones | Yes | n/a | Yes | Yes |
| Real-Music Ringers | - | n/a | Yes | Yes |
| Data & Network | ||||
| Data Tethering | Yes | n/a | - | Yes |
| WAP / Web Browser | Yes | n/a | Yes | Yes |
| Input | ||||
| Predictive Text Entry | Yes | n/a | Yes | Yes |
| Side Keys | Yes | Yes | Yes | Yes |
| Text Keyboard, Hardware | - | Yes | - | - |
| Memory | ||||
| Memory Card Slot | - | Yes | - | - |
| Messaging | ||||
| Email Client | Yes | n/a | - | Yes |
| EMS / Picture Messaging | Yes | n/a | - | Yes |
| Instant Messaging | - | n/a | - | Yes |
| MMS | Yes | n/a | Yes | Yes |
| Text Messaging Templates | Yes | n/a | Yes | Yes |
| Music | ||||
| Headphone Jack (3.5mm) | - | - | Yes | - |
| Music Player | - | n/a | - | - |
| Productivity | ||||
| Alarm | Yes | n/a | Yes | Yes |
| Calculator | Yes | n/a | Yes | Yes |
| Calendar | Yes | n/a | Yes | Yes |
| To-Do List | Yes | n/a | - | - |
| Voice Memo | Yes | n/a | Yes | Yes |
| Software | ||||
| Games | Yes | n/a | Yes | Yes |
| Java (J2ME) | Yes | n/a | - | Yes |
| Voice | ||||
| Headset Jack (2.5 mm) | - | n/a | - | Yes |
| Speaker Phone | Yes | Yes | Yes | Yes |
| Siemens SL55 | Pantech Matrix Pro C820 | Samsung M400 | Motorola V551 / V330 / V547 / V555 / V557 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Siemens SL55 | Pantech Matrix Pro C820 | Samsung M400 | Motorola V551 / V330 / V547 / V555 / V557 |
