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| Phone | Casio G'zOne Rock | Samsung PM-A840 | Samsung Glyde U940 | Siemens A56 / A56i |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size |
2.1" diag. 4 : 3 |
? |
2.8" diag. 16.5 : 9 |
? |
| Display Resolution & Type |
240 x 320 pixels (~190 ppi) LCD (TFT/TFD) |
128 x 160 pixels LCD (STN) |
240 x 440 pixels (~182 ppi) LCD (TFT/TFD) |
101 x 64 pixels |
| Display Refresh | ? | ? | ? | ? |
| Battery | 1,150 mAh | ? | 1,000 mAh | 700 mAh |
| Processor | ? | ? | ? | ? |
| RAM | ? | ? | ? | ? |
| Storage | ? raw hardware | ? raw hardware | ? raw hardware | ? raw hardware |
| Main Camera | 2 megapixel | Yes | 2 megapixel | - |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | ? | - | QVGA (320 x 240) | - |
| Front Camera | - | - | - | - |
| Weight |
4.4 oz (125g) |
3.28 oz (93g) |
4.2 oz (119g) |
3 oz (85g) |
| Dimensions |
4.1" x 2" x 0.9" (104 x 51 x 22.9 mm) |
3.54" x 1.85" x 0.94" (90 x 47 x 23.9 mm) |
4.09" x 1.98" x 0.71" (104 x 50 x 18 mm) |
4" x 1.7" x 0.8" (102 x 43 x 20.3 mm) |
| Form Factor | Clamshell | Clamshell | Slide | Slab |
| Platform / OS | (proprietary) | (proprietary) | (proprietary) | (proprietary) |
| Network Bands |
CDMA: 850, 1900 |
CDMA: 850, 1900 AMPS: 850 |
CDMA: 850, 1900 |
GSM: 850, 1900 |
| Data Technology | EVDO rA | 1xRTT | EVDO r0 | - |
| Features | ||||
| Flashlight | Yes | - | - | - |
| GPS / Location | Yes | Yes | Yes | Yes |
| Ruggedized | Yes | - | - | - |
| Water-Resistant | Yes | - | - | - |
| Accessibility | ||||
| Hearing Aid Compatible |
Yes M4, T4 (very tele-coil compatible) |
Yes M3 (mostly compatible) |
Yes M4 (very compatible) |
- |
| Multiple Languages | Yes | Yes | Yes | - |
| TTY/TDD (Digital) | Yes | Yes | Yes | Yes |
| Alerts | ||||
| Extra Display | Yes | Yes | - | - |
| Ringer Profiles | - | - | - | Yes |
| Connectivity | ||||
| Bluetooth | Yes | - | Yes | - |
| USB | Yes | - | Yes | - |
| Contacts | ||||
| Picture ID | Yes | Yes | Yes | Yes |
| Ringer ID | Yes | Yes | Yes | Yes |
| Voice Dialing | Yes | Yes | Yes | - |
| Customization | ||||
| Changeable Body Plates | - | - | - | Yes |
| Custom Graphics | Yes | Yes | Yes | Yes |
| Custom Ringtones | Yes | Yes | Yes | Yes |
| Real-Music Ringers | Yes | - | Yes | - |
| Data & Network | ||||
| Data Tethering | Yes | - | Yes | - |
| WAP / Web Browser | Yes | Yes | Yes | Yes |
| Input | ||||
| Predictive Text Entry | Yes | Yes | Yes | Yes |
| Side Keys | Yes | Yes | Yes | - |
| Text Keyboard, Hardware | - | - | Yes | - |
| Touch Screen | - | - | Yes | - |
| Memory | ||||
| Memory Card Slot | Yes | - | Yes | - |
| Messaging | ||||
| Email Client | Yes | - | - | - |
| EMS / Picture Messaging | - | - | - | Yes |
| Instant Messaging | Yes | - | - | - |
| MMS | Yes | - | Yes | - |
| Text Messaging Templates | Yes | Yes | Yes | - |
| Music | ||||
| Music Player | Yes | - | Yes | - |
| Productivity | ||||
| Alarm | Yes | Yes | Yes | Yes |
| Calculator | Yes | Yes | Yes | Yes |
| Calendar | Yes | Yes | Yes | - |
| To-Do List | - | Yes | - | - |
| Voice Memo | Yes | Yes | - | - |
| Software | ||||
| BREW | Yes | - | Yes | - |
| Games | Yes | Yes | Yes | Yes |
| Java (J2ME) | - | Yes | - | - |
| Voice | ||||
| Headset Jack (2.5 mm) | Yes | Yes | Yes | - |
| Push-To-Talk | Yes | - | - | - |
| Speaker Phone | Yes | Yes | Yes | - |
| Casio G'zOne Rock | Samsung PM-A840 | Samsung Glyde U940 | Siemens A56 / A56i | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Casio G'zOne Rock | Samsung PM-A840 | Samsung Glyde U940 | Siemens A56 / A56i |
