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| Phone | Samsung SGH-X820 | Samsung SGH-X640 | Siemens M75 | BlackBerry 7750 | Ericsson R520 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Not yet released | Released | Released |
| Specifications | |||||
|---|---|---|---|---|---|
| Display Size | ? | ? | ? | ? | ? |
| Display Resolution & Type |
220 x 176 pixels LCD (TFT/TFD) |
128 x 160 pixels LCD (TFT/TFD) |
132 x 176 pixels LCD (TFT/TFD) |
240 x 240 pixels LCD (Color) |
? |
| Display Refresh | ? | ? | ? | ? | ? |
| Battery | 650 mAh | 800 mAh | 750 mAh | ? | ? |
| Processor | ? | ? | ? | ? | ? |
| RAM | ? | ? | ? | ? | ? |
| Storage | ? raw hardware | ? raw hardware | ? raw hardware | ? raw hardware | ? raw hardware |
| Main Camera | 2 megapixel | Yes | 1 megapixel | - | - |
| Wide Camera | - | - | - | - | - |
| Tele Camera | - | - | - | - | - |
| Video Capture | ? | - | ? | - | - |
| Front Camera | - | - | - | - | - |
| Weight |
2.33 oz (66g) |
3 oz (85g) |
3.88 oz (110g) |
5.01 oz (142g) |
4.23 oz (120g) |
| Dimensions |
4.45" x 1.97" x 0.27" (113 x 50 x 6.9 mm) |
3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm) |
4.35" x 2.03" x 0.82" (110 x 52 x 20.8 mm) |
4.76" x 3.03" x 0.71" (121 x 77 x 18 mm) |
5.12" x 1.97" x 0.63" (130 x 50 x 16 mm) |
| Form Factor | Slab | Clamshell | Slab | Slab | Slab |
| Platform / OS | (proprietary) | (proprietary) | (proprietary) | BlackBerry OS | (proprietary) |
| Network Bands |
GSM: 900, 1800, 1900 |
GSM: 900, 1800, 1900 |
GSM: 900, 1800, 1900 |
CDMA: 850, 1900 |
GSM: 900, 1800, 1900 |
| Data Technology | EDGE | GPRS | GPRS | 1xRTT | GPRS |
| Features | |||||
| GPS / Location | - | - | - | n/a | - |
| Ruggedized | - | - | Yes | - | - |
| Accessibility | |||||
| Multiple Languages | Yes | Yes | Yes | n/a | Yes |
| TTY/TDD (Digital) | - | - | - | Yes | - |
| Alerts | |||||
| Ringer Profiles | - | - | Yes | Yes | Yes |
| Connectivity | |||||
| Bluetooth | Yes | - | Yes | - | Yes |
| Infrared (IR) | - | - | Yes | - | Yes |
| USB | Yes | - | Yes | Yes | - |
| Contacts | |||||
| Picture ID | Yes | Yes | Yes | n/a | - |
| Ringer ID | Yes | Yes | Yes | n/a | - |
| Voice Dialing | - | - | - | n/a | Yes |
| Customization | |||||
| Custom Graphics | Yes | Yes | Yes | n/a | - |
| Custom Ringtones | Yes | Yes | Yes | n/a | Yes |
| Real-Music Ringers | Yes | - | - | n/a | - |
| Data & Network | |||||
| Data Tethering | - | - | Yes | n/a | Yes |
| External Antenna Jack | Yes | - | - | n/a | - |
| WAP / Web Browser | Yes | Yes | Yes | n/a | Yes |
| Input | |||||
| Predictive Text Entry | Yes | Yes | Yes | n/a | Yes |
| Side Keys | Yes | Yes | Yes | Yes | Yes |
| Text Keyboard, Hardware | - | - | - | Yes | - |
| Memory | |||||
| Memory Card Slot | - | - | Yes | - | - |
| Messaging | |||||
| Email Client | Yes | - | Yes | n/a | - |
| EMS / Picture Messaging | Yes | Yes | Yes | n/a | - |
| MMS | Yes | Yes | Yes | n/a | - |
| Text Messaging Templates | Yes | Yes | - | n/a | Yes |
| Music | |||||
| Music Player | - | - | Yes | n/a | - |
| Photo & Video | |||||
| TV Output | Yes | - | - | - | - |
| Productivity | |||||
| Alarm | Yes | Yes | Yes | n/a | Yes |
| Calculator | Yes | Yes | Yes | n/a | Yes |
| Calendar | Yes | Yes | Yes | n/a | Yes |
| To-Do List | Yes | Yes | Yes | n/a | - |
| Voice Memo | Yes | Yes | Yes | n/a | Yes |
| Software | |||||
| Games | Yes | Yes | Yes | n/a | Yes |
| Java (J2ME) | Yes | Yes | Yes | n/a | - |
| Voice | |||||
| Headset Jack (2.5 mm) | - | Yes | - | n/a | - |
| Push-To-Talk | - | - | Yes | - | - |
| Speaker Phone | Yes | Yes | Yes | - | Yes |
| Samsung SGH-X820 | Samsung SGH-X640 | Siemens M75 | BlackBerry 7750 | Ericsson R520 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SGH-X820 | Samsung SGH-X640 | Siemens M75 | BlackBerry 7750 | Ericsson R520 |
