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| Phone | Samsung SCH-R300 | Siemens M55 | Samsung SCH-A990 |
| Current U.S. Carriers | (none) | (none) | (none) |
| Global Availability | Released | Released | Released |
| Specifications | |||
|---|---|---|---|
| Display Size |
1.7" diag. 4 : 3 |
? | ? |
| Display Resolution & Type |
128 x 160 pixels (~123 ppi) LCD (STN) |
101 x 80 pixels LCD (Color) |
240 x 320 pixels LCD (TFT/TFD) |
| Display Refresh | ? | ? | ? |
| Battery | 800 mAh | 700 mAh | 1,000 mAh |
| Processor | ? | ? | ? |
| RAM | ? | ? | ? |
| Storage | ? raw hardware | ? raw hardware | ? raw hardware |
| Main Camera | - | - | 3 megapixel |
| Wide Camera | - | - | - |
| Tele Camera | - | - | - |
| Video Capture | - | - | ? |
| Front Camera | - | - | - |
| Weight |
2.9 oz (82g) |
2.93 oz (83g) |
4.4 oz (125g) |
| Dimensions |
3.5" x 1.8" x 0.78" (89 x 46 x 19.8 mm) |
3.98" x 1.81" x 0.83" (101 x 46 x 21.1 mm) |
3.8" x 1.88" x 0.82" (97 x 48 x 20.8 mm) |
| Form Factor | Clamshell | Slab | Clamshell |
| Platform / OS | (proprietary) | (proprietary) | (proprietary) |
| Network Bands |
CDMA: 850, 1900 |
GSM: 900, 1800, 1900 |
CDMA: 850, 1900 |
| Data Technology | 1xRTT | GPRS | EVDO r0 |
| Features | |||
| Flashlight | - | - | Yes |
| GPS / Location | Yes | Yes | Yes |
| Accessibility | |||
| Hearing Aid Compatible |
Yes M4 (very compatible) |
- |
Yes M3 (mostly compatible) |
| Multiple Languages | Yes | Yes | Yes |
| TTY/TDD (Digital) | Yes | Yes | Yes |
| Alerts | |||
| Extra Display | Yes | - | Yes |
| Connectivity | |||
| Bluetooth | - | - | Yes |
| USB | - | - | Yes |
| Contacts | |||
| Picture ID | Yes | - | Yes |
| Ringer ID | Yes | - | Yes |
| Voice Dialing | Yes | Yes | Yes |
| Customization | |||
| Custom Graphics | Yes | Yes | Yes |
| Custom Ringtones | Yes | 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 |
| Side Keys | Yes | Yes | Yes |
| Memory | |||
| Memory Card Slot | - | - | Yes |
| Messaging | |||
| Email Client | - | Yes | - |
| EMS / Picture Messaging | - | Yes | Yes |
| Instant Messaging | Yes | - | - |
| MMS | - | Yes | Yes |
| Text Messaging Templates | Yes | - | Yes |
| Music | |||
| Music Player | - | - | Yes |
| Stereo Speakers | - | - | Yes |
| Photo & Video | |||
| TV Output | - | - | Yes |
| Productivity | |||
| Alarm | Yes | - | Yes |
| Calculator | Yes | - | Yes |
| Calendar | Yes | Yes | Yes |
| Voice Memo | Yes | - | Yes |
| Software | |||
| BREW | Yes | - | Yes |
| Games | Yes | Yes | Yes |
| Java (J2ME) | - | Yes | - |
| Voice | |||
| Speaker Phone | Yes | Yes | Yes |
| Samsung SCH-R300 | Siemens M55 | Samsung SCH-A990 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SCH-R300 | Siemens M55 | Samsung SCH-A990 |
