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| Phone | BlackBerry 7750 | Samsung SCH-A570 | Nokia E75 | Siemens SL55 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size | ? | ? |
2.4" diag. 4 : 3 |
? |
| Display Resolution & Type |
240 x 240 pixels LCD (Color) |
128 x 160 pixels LCD (STN) |
240 x 320 pixels (~167 ppi) LCD (TFT/TFD) |
101 x 80 pixels LCD (STN) |
| Display Refresh | ? | ? | ? | ? |
| Battery | ? | ? | 1,000 mAh | 500 mAh |
| Processor | ? | ? | 369 MHz ARM 11 | ? |
| RAM | ? | ? | ? | ? |
| Storage | ? raw hardware | ? raw hardware | ? raw hardware | ? raw hardware |
| Main Camera | - | - | 3 megapixel | - |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | - | - | VGA (640 x 480) | - |
| Front Camera | - | - | - | - |
| Weight |
5.01 oz (142g) |
3.6 oz (102g) |
4.9 oz (139g) |
2.79 oz (79g) |
| Dimensions |
4.76" x 3.03" x 0.71" (121 x 77 x 18 mm) |
3.3" x 1.8" x 0.9" (84 x 46 x 22.9 mm) |
4.4" x 1.97" x 0.57" (112 x 50 x 14.4 mm) |
3.21" x 1.75" x 0.86" (82 x 44 x 21.8 mm) |
| Form Factor | Slab | Clamshell | Slab | Slide |
| Platform / OS | BlackBerry OS | (proprietary) | S60 (Symbian) | (proprietary) |
| Network Bands |
CDMA: 850, 1900 |
CDMA: 850, 1900 |
GSM: 900, 1800, 1900 |
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| Data Technology | 1xRTT | 1xRTT | HSDPA 3.6 | GPRS |
| Features | ||||
| GPS / Location | n/a | Yes | n/a | - |
| Accessibility | ||||
| Multiple Languages | n/a | Yes | n/a | Yes |
| TTY/TDD (Digital) | Yes | Yes | - | - |
| Alerts | ||||
| Extra Display | - | Yes | - | - |
| Ringer Profiles | Yes | - | Yes | Yes |
| Connectivity | ||||
| Bluetooth | - | - | Yes | - |
| Infrared (IR) | - | - | - | Yes |
| USB | Yes | - |
Yes Micro-USB |
- |
| Wi-Fi | - | - |
Yes 802.11 b,g |
- |
| Contacts | ||||
| Picture ID | n/a | - | n/a | Yes |
| Ringer ID | n/a | - | n/a | Yes |
| Voice Dialing | n/a | Yes | n/a | Yes |
| Customization | ||||
| Custom Graphics | n/a | Yes | n/a | Yes |
| Custom Ringtones | n/a | Yes | n/a | Yes |
| Real-Music Ringers | n/a | - | n/a | - |
| Data & Network | ||||
| Data Tethering | n/a | - | n/a | Yes |
| WAP / Web Browser | n/a | Yes | n/a | Yes |
| Input | ||||
| Predictive Text Entry | n/a | Yes | n/a | Yes |
| Side Keys | Yes | Yes | Yes | Yes |
| Text Keyboard, Hardware | Yes | - | Yes | - |
| Memory | ||||
| Memory Card Slot | - | - | Yes | - |
| Messaging | ||||
| Email Client | n/a | - | n/a | Yes |
| EMS / Picture Messaging | n/a | Yes | n/a | Yes |
| Instant Messaging | n/a | - | n/a | - |
| MMS | n/a | - | n/a | Yes |
| Text Messaging Templates | n/a | Yes | n/a | Yes |
| Music | ||||
| FM Radio | - | - | Yes | - |
| Headphone Jack (3.5mm) | - | - | Yes | - |
| Music Player | n/a | - | n/a | - |
| Photo & Video | ||||
| Video Calling | n/a | - | n/a | - |
| Productivity | ||||
| Alarm | n/a | Yes | n/a | Yes |
| Calculator | n/a | Yes | n/a | Yes |
| Calendar | n/a | Yes | n/a | Yes |
| To-Do List | n/a | Yes | n/a | Yes |
| Voice Memo | n/a | Yes | n/a | Yes |
| Software | ||||
| BREW | n/a | Yes | n/a | - |
| Games | n/a | Yes | n/a | Yes |
| Java (J2ME) | n/a | - | n/a | Yes |
| Voice | ||||
| Headset Jack (2.5 mm) | n/a | Yes | n/a | - |
| Push-To-Talk | - | - | Yes * | - |
| Speaker Phone | - | - | Yes | Yes |
| * Some versions only | ||||
| BlackBerry 7750 | Samsung SCH-A570 | Nokia E75 | Siemens SL55 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | BlackBerry 7750 | Samsung SCH-A570 | Nokia E75 | Siemens SL55 |
