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| Phone | Motorola KRZR K1m | Casio G'zOne Boulder | Siemens M75 | Ericsson R520 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Not yet released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size | ? |
2" diag. 4 : 3 |
? | ? |
| Display Resolution & Type |
176 x 220 pixels LCD (TFT/TFD) |
240 x 320 pixels (~200 ppi) LCD (TFT/TFD) |
132 x 176 pixels LCD (TFT/TFD) |
? |
| Display Refresh | ? | ? | ? | ? |
| Battery | 880 mAh | 810 mAh | 750 mAh | ? |
| Processor | ? | ? | ? | ? |
| RAM | ? | ? | ? | ? |
| Storage | ? raw hardware | ? raw hardware | ? raw hardware | ? raw hardware |
| Main Camera | 1 megapixel | 1 megapixel | 1 megapixel | - |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | ? | ? | ? | - |
| Front Camera | - | - | - | - |
| Weight |
3.63 oz (103g) |
4.9 oz (139g) |
3.88 oz (110g) |
4.23 oz (120g) |
| Dimensions |
4.06" x 1.73" x 0.67" (103 x 44 x 17 mm) |
3.9" x 2" x 0.9" (99 x 51 x 22.9 mm) |
4.35" x 2.03" x 0.82" (110 x 52 x 20.8 mm) |
5.12" x 1.97" x 0.63" (130 x 50 x 16 mm) |
| Form Factor | Clamshell | Clamshell | Slab | Slab |
| Platform / OS | (proprietary) | (proprietary) | (proprietary) | (proprietary) |
| Network Bands |
CDMA: 850, 1900 |
CDMA: 850, 1900 |
GSM: 900, 1800, 1900 |
GSM: 900, 1800, 1900 |
| Data Technology | EVDO r0 | EVDO rA | GPRS | GPRS |
| Features | ||||
| Flashlight | - | Yes | - | - |
| GPS / Location | Yes | Yes | - | - |
| Ruggedized | - | Yes | Yes | - |
| Water-Resistant | - | Yes | - | - |
| Accessibility | ||||
| Hearing Aid Compatible |
Yes M3 (mostly compatible) |
Yes M4, T4 (very tele-coil compatible) |
- | - |
| Multiple Languages | Yes | Yes | Yes | Yes |
| TTY/TDD (Digital) | Yes | Yes | - | - |
| Alerts | ||||
| Extra Display | Yes | Yes | - | - |
| Ringer Profiles | Yes | - | Yes | Yes |
| Connectivity | ||||
| Bluetooth | Yes | Yes | Yes | Yes |
| Infrared (IR) | - | - | Yes | Yes |
| USB |
Yes Mini-USB |
Yes | Yes | - |
| Contacts | ||||
| Picture ID | Yes | Yes | Yes | - |
| Ringer ID | Yes | Yes | Yes | - |
| Voice Dialing | Yes | Yes | - | Yes |
| Customization | ||||
| Changeable Body Plates | - | Yes | - | - |
| Custom Graphics | Yes | Yes | Yes | - |
| Custom Ringtones | Yes | Yes | Yes | Yes |
| Data & Network | ||||
| Data Tethering | Yes | Yes | Yes | 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 | - |
| EMS / Picture Messaging | Yes | Yes | Yes | - |
| Instant Messaging | Yes * | - | - | - |
| MMS | Yes | Yes | Yes | - |
| Text Messaging Templates | Yes | Yes | - | Yes |
| Music | ||||
| Music Player | Yes | Yes | Yes | - |
| Productivity | ||||
| Alarm | Yes | Yes | Yes | Yes |
| Calculator | Yes | Yes | Yes | Yes |
| Calendar | Yes | Yes | Yes | Yes |
| To-Do List | - | - | Yes | - |
| Voice Memo | Yes | Yes | Yes | Yes |
| Software | ||||
| BREW | Yes * | Yes | - | - |
| Games | Yes | Yes | Yes | Yes |
| Java (J2ME) | Yes * | - | Yes | - |
| Voice | ||||
| Push-To-Talk | - | Yes | Yes | - |
| Speaker Phone | Yes | Yes | Yes | Yes |
| * Some versions only | ||||
| Motorola KRZR K1m | Casio G'zOne Boulder | Siemens M75 | Ericsson R520 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Motorola KRZR K1m | Casio G'zOne Boulder | Siemens M75 | Ericsson R520 |
