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| Phone | Pantech Matrix Pro C820 | Siemens CX75 | HTC Desire 555 | Motorola E398 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Not yet released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size |
2.4" diag. 4 : 3 |
? |
5" diag. 16 : 9 |
? |
| Display Resolution & Type |
240 x 320 pixels (~167 ppi) LCD (TFT/TFD) |
132 x 176 pixels LCD (TFT/TFD) |
720 x 1280 pixels (~294 ppi) LCD (TFT/TFD) |
176 x 220 pixels LCD (TFT/TFD) |
| Display Refresh | ? | ? | 60 Hz | ? |
| Battery | 1,320 mAh | 750 mAh | 2,200 mAh | ? |
| Processor | 528 MHz ARM 11 | ? | 1.1 GHz Qualcomm Snapdragon 210 (MSM8909) | ? |
| RAM | ? | ? | 2 GB | ? |
| Storage | ? raw hardware | ? raw hardware | 16 GB | ? raw hardware |
| Main Camera | 2 megapixel | 1 megapixel | 8 megapixel | Yes |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | QCIF (176 x 144) | ? | 720p HD | - |
| Front Camera | - | - | 5 megapixel | - |
| Weight |
5.34 oz (151g) |
3.46 oz (98g) |
4.93 oz (140g) |
3.88 oz (110g) |
| Dimensions |
4.2" x 2" x 0.9" (107 x 51 x 22.9 mm) |
4.33" x 1.88" x 0.74" (110 x 48 x 18.8 mm) |
5.78" x 2.79" x 0.33" (147 x 71 x 8.4 mm) |
4.25" x 1.81" x 0.81" (108 x 46 x 20.6 mm) |
| Form Factor | Slide | Slab | Slab | Slab |
| Platform / OS | Windows Mobile Standard | (proprietary) | Android | (proprietary) |
| Network Bands |
WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
GSM: 900, 1800, 1900 |
4G LTE: 2, 4, 5, 12 WCDMA: 2, 4, 5 GSM: 850, 900, 1800, 1900 |
GSM: 900, 1800, 1900 |
| Data Technology | HSDPA 3.6 | GPRS | LTE (Cat 4) | GPRS |
| Features | ||||
| Flashlight | - | - | Yes | - |
| GPS / Location | n/a | - | n/a | - |
| Accessibility | ||||
| Hearing Aid Compatible | - | - | Yes * | - |
| Multiple Languages | n/a | Yes | n/a | Yes |
| TTY/TDD (Digital) | Yes | - | Yes | Yes |
| Alerts | ||||
| Ringer Profiles | Yes | Yes | - | Yes |
| Connectivity | ||||
| Bluetooth |
Yes Classic Audio |
Yes Classic Audio |
Yes Classic Audio |
Yes Classic Audio |
| Infrared (IR) | - | Yes | - | - |
| USB | Yes | Yes |
Yes Micro-USB |
Yes |
| Wi-Fi | - | - |
Yes 4 (802.11 b,g,n) |
- |
| Contacts | ||||
| Picture ID | n/a | Yes | n/a | Yes |
| Ringer ID | n/a | Yes | n/a | Yes |
| Voice Dialing | n/a | - | n/a | Yes |
| Customization | ||||
| Custom Graphics | n/a | Yes | n/a | Yes |
| Custom Ringtones | n/a | Yes | n/a | Yes |
| Real-Music Ringers | n/a | - | n/a | Yes |
| Data & Network | ||||
| Data Tethering | n/a | Yes | n/a | Yes |
| WAP / Web Browser | n/a | Yes | n/a | Yes |
| Input | ||||
| Predictive Text Entry | n/a | Yes | n/a | Yes |
| Side Keys | Yes | Yes | Yes | Yes |
| Text Keyboard, Hardware | Yes | - | - | - |
| Touch Screen | - | - | Yes | - |
| Memory | ||||
| Memory Card Slot | Yes | Yes | Yes | Yes |
| Messaging | ||||
| Email Client | n/a | Yes | n/a | Yes |
| EMS / Picture Messaging | n/a | Yes | n/a | Yes |
| Instant Messaging | n/a | - | n/a | Yes |
| MMS | n/a | Yes | n/a | Yes |
| Music | ||||
| FM Radio | - | - | Yes | - |
| Headphone Jack (3.5mm) | - | - | Yes | - |
| Music Player | n/a | Yes | n/a | Yes |
| Stereo Speakers | - | - | - | Yes |
| Photo & Video | ||||
| DLNA | - | - | Yes | - |
| Miracast | - | - | Yes | - |
| Productivity | ||||
| Alarm | n/a | Yes | n/a | Yes |
| Calculator | n/a | Yes | n/a | Yes |
| Calendar | n/a | Yes | n/a | Yes |
| To-Do List | n/a | Yes | n/a | - |
| Voice Memo | n/a | Yes | n/a | Yes |
| Software | ||||
| Games | n/a | Yes | n/a | Yes * |
| Java (J2ME) | n/a | Yes | n/a | Yes |
| Voice | ||||
| HD Voice | - | - | Yes | - |
| Headset Jack (2.5 mm) | n/a | - | n/a | Yes |
| Push-To-Talk | - | Yes | - | - |
| Speaker Phone | Yes | Yes | Yes | Yes |
| * Some versions only | ||||
| Pantech Matrix Pro C820 | Siemens CX75 | HTC Desire 555 | Motorola E398 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Pantech Matrix Pro C820 | Siemens CX75 | HTC Desire 555 | Motorola E398 |
