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| Phone | Casio G'zOne Boulder | Motorola EM330 / EM28 | ZTE Z221 | ZTE Agent |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size |
2" diag. 4 : 3 |
1.8" diag. 4 : 3 |
2" diag. 4 : 3 |
2.4" diag. 4 : 3 |
| Display Resolution & Type |
240 x 320 pixels (~200 ppi) LCD (TFT/TFD) |
128 x 160 pixels (~114 ppi) LCD (TFT/TFD) |
240 x 320 pixels (~200 ppi) LCD (TFT/TFD) |
240 x 320 pixels (~167 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | ? | ? | ? |
| Battery | 810 mAh | 940 mAh | 900 mAh | 900 mAh |
| Processor | ? | ? | ? | ? |
| RAM | ? | ? | ? | ? |
| Storage | ? raw hardware | ? raw hardware | 142 MB | ? raw hardware |
| Main Camera | 1 megapixel | 1 megapixel | Yes | 1 megapixel |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | ? | ? | QCIF (176 x 144) | ? |
| Front Camera | - | - | - | - |
| Weight |
4.9 oz (139g) |
3.17 oz (90g) |
3.24 oz (92g) |
3.53 oz (100g) |
| Dimensions |
3.9" x 2" x 0.9" (99 x 51 x 22.9 mm) |
3.71" x 1.95" x 0.68" (94 x 50 x 17.4 mm) |
3.76" x 1.92" x 0.73" (96 x 49 x 18.5 mm) |
4.3" x 1.9" x 0.6" (109 x 48 x 15.2 mm) |
| Form Factor | Clamshell | Clamshell | Clamshell | Slab |
| Platform / OS | (proprietary) | (proprietary) | (proprietary) | (proprietary) |
| Network Bands |
CDMA: 850, 1900 |
GSM: 850, 1800, 1900 |
WCDMA: 2, 5 GSM: 850, 900, 1800, 1900 |
CDMA: 850, 1700, 1900 |
| Data Technology | EVDO rA | EDGE | HSDPA 3.6 | 1xRTT |
| Features | ||||
| Flashlight | Yes | - | - | - |
| GPS / Location | Yes | - | Yes | Yes |
| Ruggedized | Yes | - | - | - |
| Water-Resistant | Yes | - | - | - |
| Accessibility | ||||
| Hearing Aid Compatible | Yes | Yes | Yes | Yes |
| Multiple Languages | Yes | Yes | Yes | Yes |
| TTY/TDD (Digital) | Yes | Yes | Yes | Yes |
| Alerts | ||||
| Extra Display | Yes | Yes | Yes | - |
| Ringer Profiles | - | - | Yes | - |
| Connectivity | ||||
| Bluetooth |
Yes Classic Audio |
Yes Classic Audio |
Yes Classic Audio |
Yes Classic Audio |
| USB | Yes |
Yes Mini-USB |
Yes |
Yes Micro-USB |
| Contacts | ||||
| Picture ID | Yes | - | - | - |
| Ringer ID | Yes | - | - | Yes |
| Voice Dialing | Yes | - | - | - |
| Customization | ||||
| Changeable Body Plates | Yes | - | - | - |
| Custom Graphics | Yes | Yes | Yes | Yes |
| Custom Ringtones | Yes | Yes | Yes | Yes |
| Real-Music Ringers | - | Yes | Yes | Yes |
| Data & Network | ||||
| Data Tethering | Yes | - | - | - |
| WAP / Web Browser | Yes | Yes | Yes | Yes |
| Input | ||||
| Predictive Text Entry | Yes | Yes | Yes | Yes |
| Side Keys | Yes | Yes | Yes | Yes |
| Memory | ||||
| Memory Card Slot | Yes | Yes | - | Yes |
| Messaging | ||||
| Email Client | - | - | Yes | Yes |
| EMS / Picture Messaging | Yes | Yes | - | - |
| Instant Messaging | - | - | Yes | Yes |
| MMS | Yes | Yes | Yes | Yes |
| Text Messaging Templates | Yes | Yes | Yes | Yes |
| Music | ||||
| FM Radio | - | Yes | - | - |
| Headphone Jack (3.5mm) | - | Yes | - | Yes |
| Music Player | Yes | Yes | - | Yes |
| Productivity | ||||
| Alarm | Yes | Yes | Yes | Yes |
| Calculator | Yes | Yes | Yes | Yes |
| Calendar | Yes | Yes | Yes | Yes |
| Voice Memo | Yes | - | Yes | Yes |
| Software | ||||
| BREW | Yes | - | - | Yes |
| Games | Yes | Yes | Yes | Yes |
| Java (J2ME) | - | Yes | Yes | - |
| Voice | ||||
| Push-To-Talk | Yes | - | - | - |
| Speaker Phone | Yes | Yes | Yes | Yes |
| Casio G'zOne Boulder | Motorola EM330 / EM28 | ZTE Z221 | ZTE Agent | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Casio G'zOne Boulder | Motorola EM330 / EM28 | ZTE Z221 | ZTE Agent |
