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| Phone | Casio G'zOne Rock | Samsung SGH-X640 | Samsung SPH/SCH-N300 | Samsung SPH-N270 (Matrix Phone) |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size |
2.1" diag. 4 : 3 |
? | ? | ? |
| Display Resolution & Type |
240 x 320 pixels (~190 ppi) LCD (TFT/TFD) |
128 x 160 pixels LCD (TFT/TFD) |
128 x 64 pixels |
128 x 160 pixels LCD (TFT/TFD) |
| Display Refresh | ? | ? | ? | ? |
| Battery | 1,150 mAh | 800 mAh | ? | 1,000 mAh |
| Processor | ? | ? | ? | ? |
| RAM | ? | ? | ? | ? |
| Storage | ? raw hardware | ? raw hardware | ? raw hardware | ? raw hardware |
| Main Camera | 2 megapixel | Yes | - | - |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | ? | - | - | - |
| Front Camera | - | - | - | - |
| Weight |
4.4 oz (125g) |
3 oz (85g) |
4.1 oz (116g) |
4.66 oz (132g) |
| Dimensions |
4.1" x 2" x 0.9" (104 x 51 x 22.9 mm) |
3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm) |
4.5" x 1.9" x 0.9" (114 x 48 x 22.9 mm) |
4.53" x 2.28" x 0.79" (115 x 58 x 20.1 mm) |
| Form Factor | Clamshell | Clamshell | Flip | Slide |
| Platform / OS | (proprietary) | (proprietary) | (proprietary) | (proprietary) |
| Network Bands |
CDMA: 850, 1900 |
GSM: 900, 1800, 1900 |
CDMA: 850, 1900 AMPS: 850 |
CDMA: 850, 1900 AMPS: 850 |
| Data Technology | EVDO rA | GPRS | - | - |
| Features | ||||
| Flashlight | Yes | - | - | - |
| GPS / Location | Yes | - | Yes | Yes |
| Ruggedized | Yes | - | - | - |
| Water-Resistant | Yes | - | - | - |
| Accessibility | ||||
| Hearing Aid Compatible |
Yes M4, T4 (very tele-coil compatible) |
- | - | - |
| Multiple Languages | Yes | Yes | - | Yes |
| TTY/TDD (Digital) | Yes | - | - | - |
| Alerts | ||||
| Extra Display | Yes | - | - | - |
| Connectivity | ||||
| Bluetooth | Yes | - | - | - |
| USB | Yes | - | - | - |
| Contacts | ||||
| Picture ID | Yes | Yes | - | Yes |
| Ringer ID | Yes | Yes | - | Yes |
| Voice Dialing | Yes | - | Yes | Yes |
| Customization | ||||
| Custom Graphics | Yes | Yes | - | - |
| Custom Ringtones | Yes | Yes | - | - |
| Real-Music Ringers | Yes | - | - | - |
| Data & Network | ||||
| Data Tethering | Yes | - | Yes | - |
| WAP / Web Browser | Yes | Yes | Yes | - |
| Input | ||||
| Predictive Text Entry | Yes | Yes | Yes | Yes |
| Side Keys | Yes | Yes | Yes | - |
| Memory | ||||
| Memory Card Slot | Yes | - | - | - |
| Messaging | ||||
| Email Client | Yes | - | - | - |
| EMS / Picture Messaging | - | Yes | - | - |
| Instant Messaging | Yes | - | - | - |
| MMS | Yes | Yes | - | - |
| Text Messaging Templates | Yes | Yes | - | - |
| Music | ||||
| Music Player | Yes | - | - | - |
| Productivity | ||||
| Alarm | Yes | Yes | Yes | Yes |
| Calculator | Yes | Yes | Yes | Yes |
| Calendar | Yes | Yes | Yes | Yes |
| To-Do List | - | Yes | Yes | Yes |
| Voice Memo | Yes | Yes | - | Yes |
| Software | ||||
| BREW | Yes | - | - | - |
| Games | Yes | Yes | Yes | - |
| Java (J2ME) | - | Yes | - | - |
| Voice | ||||
| Headset Jack (2.5 mm) | Yes | Yes | Yes | Yes |
| Push-To-Talk | Yes | - | - | - |
| Speaker Phone | Yes | Yes | - | - |
| Casio G'zOne Rock | Samsung SGH-X640 | Samsung SPH/SCH-N300 | Samsung SPH-N270 (Matrix Phone) | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Casio G'zOne Rock | Samsung SGH-X640 | Samsung SPH/SCH-N300 | Samsung SPH-N270 (Matrix Phone) |
