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| Phone | Siemens C56 | Samsung Rugby 4 | Motorola C290 | Palm Treo 750 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size | ? |
2.4" diag. 4 : 3 |
? | ? |
| Display Resolution & Type | 101 x 64 pixels |
240 x 320 pixels (~167 ppi) LCD (TFT/TFD) |
128 x 160 pixels LCD (STN) |
240 x 240 pixels LCD (TFT/TFD) |
| Display Refresh | ? | ? | ? | ? |
| Battery | 700 mAh | 1,300 mAh | 1,020 mAh | 1,200 mAh |
| Processor | ? | Intel XMM6230 | ? | 300 MHz Samsung |
| RAM | ? | 128 MB | ? | ? |
| Storage | ? raw hardware | 256 MB | ? raw hardware | ? raw hardware |
| Main Camera | - | 3 megapixel | - | 1 megapixel |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | - | QVGA (320 x 240) | - | CIF (352 x 288) |
| Front Camera | - | - | - | - |
| Weight |
3 oz (85g) |
5.22 oz (148g) |
3.53 oz (100g) |
5.4 oz (153g) |
| Dimensions |
3.98" x 1.73" x 0.83" (101 x 44 x 21.1 mm) |
4.25" x 2.17" x 0.85" (108 x 55 x 21.6 mm) |
3.43" x 1.91" x 0.93" (87 x 49 x 23.6 mm) |
4.37" x 2.28" x 0.87" (111 x 58 x 22.1 mm) |
| Form Factor | Slab | Clamshell | Clamshell | Slab |
| Platform / OS | (proprietary) | (proprietary) | (proprietary) | Windows Mobile Professional |
| Network Bands |
GSM: 850, 1900 |
WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
CDMA: 850, 1900 AMPS: 850 |
WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
| Data Technology | GPRS | HSPA+ 21 | 1xRTT | WCDMA (UMTS) |
| Features | ||||
| GPS / Location | Yes | Yes | Yes | n/a |
| Ruggedized | - | Yes | - | - |
| Water-Resistant | - |
Yes IPX7 (snorkeling) |
- | - |
| Accessibility | ||||
| Adjustable Text Size | - | Yes | - | n/a |
| Hearing Aid Compatible | - |
Yes M3, T3 (mostly tele-coil compatible) |
Yes M3 (mostly compatible) |
- |
| Multiple Languages | Yes | Yes | Yes | n/a |
| TTY/TDD (Digital) | Yes | Yes | Yes | Yes |
| Alerts | ||||
| Extra Display | - | Yes | - | - |
| Ringer Profiles | Yes | Yes | - | - |
| Connectivity | ||||
| Bluetooth | - | Yes | - | Yes |
| Infrared (IR) | - | - | - | Yes |
| USB | Yes |
Yes Micro-USB |
Yes Mini-USB |
Yes |
| Wi-Fi | - |
Yes 4 (802.11 b,g,n) |
- | - |
| Contacts | ||||
| Picture ID | - | Yes | Yes | n/a |
| Ringer ID | Yes | Yes | Yes | n/a |
| Voice Dialing | Yes | Yes | - | n/a |
| Customization | ||||
| Changeable Body Plates | Yes | - | - | - |
| 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 |
| External Antenna Jack | - | - | Yes | n/a |
| WAP / Web Browser | Yes | Yes | Yes | n/a |
| Input | ||||
| Predictive Text Entry | Yes | Yes | Yes | n/a |
| Side Keys | - | Yes | Yes | Yes |
| Stylus | - | - | - | Yes |
| Text Keyboard, Hardware | - | - | - | Yes |
| Touch Screen | - | - | - |
Yes Resistive |
| Memory | ||||
| Memory Card Slot | - | Yes | - | Yes |
| Messaging | ||||
| Email Client | - | Yes | - | n/a |
| EMS / Picture Messaging | Yes | - | - | n/a |
| MMS | - | Yes | - | n/a |
| Text Messaging Templates | Yes | Yes | Yes | n/a |
| Music | ||||
| Music Player | - | Yes | - | n/a |
| Productivity | ||||
| Alarm | Yes | Yes | Yes | n/a |
| Calculator | Yes | Yes | Yes | n/a |
| Calendar | Yes | Yes | Yes | n/a |
| To-Do List | - | Yes | - | n/a |
| Voice Memo | - | Yes | Yes | n/a |
| Software | ||||
| Games | Yes | Yes | Yes | n/a |
| Java (J2ME) | Yes | Yes | Yes | n/a |
| Voice | ||||
| Headset Jack (2.5 mm) | - | - | Yes | n/a |
| Push-To-Talk | - | Yes | - | - |
| Speaker Phone | Yes | Yes | Yes | Yes |
| Siemens C56 | Samsung Rugby 4 | Motorola C290 | Palm Treo 750 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Siemens C56 | Samsung Rugby 4 | Motorola C290 | Palm Treo 750 |
