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| Phone | Motorola ROKR E2 | Pantech Matrix Pro C820 | Samsung SGH-A157 |
| Current U.S. Carriers | (none) | (none) | (none) |
| Global Availability | Released | Released | Released |
| Specifications | |||
|---|---|---|---|
| Display Size | ? |
2.4" diag. 4 : 3 |
1.8" diag. 4 : 3 |
| Display Resolution & Type |
240 x 320 pixels LCD (TFT/TFD) |
240 x 320 pixels (~167 ppi) LCD (TFT/TFD) |
128 x 160 pixels (~116 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | ? | ? |
| Battery | ? | 1,320 mAh | 800 mAh |
| Processor | ? | 528 MHz ARM 11 | ? |
| RAM | ? | ? | ? |
| Storage | ? raw hardware | ? raw hardware | 256 MB |
| Main Camera | 1 megapixel | 2 megapixel | - |
| Wide Camera | - | - | - |
| Tele Camera | - | - | - |
| Video Capture | ? | QCIF (176 x 144) | - |
| Front Camera | - | - | - |
| Weight |
3.77 oz (107g) |
5.34 oz (151g) |
2.99 oz (85g) |
| Dimensions |
4.17" x 1.95" x 0.71" (106 x 50 x 18 mm) |
4.2" x 2" x 0.9" (107 x 51 x 22.9 mm) |
3.83" x 1.84" x 0.65" (97 x 47 x 16.5 mm) |
| Form Factor | Slab | Slide | Clamshell |
| Platform / OS | (proprietary) | Windows Mobile Standard | (proprietary) |
| Network Bands |
GSM: 900, 1800, 1900 |
WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
WCDMA: 2, 5 GSM: 850, 900, 1800, 1900 |
| Data Technology | EDGE | HSDPA 3.6 | ? |
| Features | |||
| GPS / Location | - | n/a | Yes |
| Accessibility | |||
| Adjustable Text Size | - | n/a | Yes |
| Hearing Aid Compatible | - | - |
Yes M4 (very compatible) |
| Multiple Languages | Yes | n/a | Yes |
| TTY/TDD (Digital) | - | Yes | Yes |
| Alerts | |||
| Ringer Profiles | Yes | Yes | Yes |
| Connectivity | |||
| Bluetooth | Yes | Yes | - |
| USB | Yes | Yes |
Yes Micro-USB |
| Contacts | |||
| Picture ID | Yes | n/a | Yes |
| Ringer ID | Yes | n/a | Yes |
| Voice Dialing | Yes | n/a | - |
| Customization | |||
| Custom Graphics | Yes | n/a | Yes |
| Custom Ringtones | Yes | n/a | Yes |
| Real-Music Ringers | - | n/a | Yes |
| Data & Network | |||
| Data Tethering | Yes | n/a | - |
| WAP / Web Browser | Yes | n/a | Yes |
| Input | |||
| Predictive Text Entry | Yes | n/a | Yes |
| Side Keys | Yes | Yes | - |
| Text Keyboard, Hardware | - | Yes | - |
| Memory | |||
| Memory Card Slot | Yes | Yes | - |
| Messaging | |||
| Email Client | Yes | n/a | - |
| Instant Messaging | - | n/a | - |
| MMS | Yes | n/a | Yes |
| Text Messaging Templates | Yes | n/a | Yes |
| Music | |||
| FM Radio | Yes | - | - |
| Headphone Jack (3.5mm) | Yes | - | - |
| Music Player | Yes | n/a | - |
| Productivity | |||
| Alarm | Yes | n/a | Yes |
| Calculator | Yes | n/a | Yes |
| Calendar | Yes | n/a | Yes |
| To-Do List | Yes | n/a | Yes |
| Voice Memo | Yes | n/a | Yes |
| Software | |||
| Games | Yes | n/a | - |
| Java (J2ME) | Yes | n/a | - |
| Voice | |||
| Speaker Phone | Yes | Yes | Yes |
| Motorola ROKR E2 | Pantech Matrix Pro C820 | Samsung SGH-A157 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Motorola ROKR E2 | Pantech Matrix Pro C820 | Samsung SGH-A157 |
