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| Phone | Siemens A56 / A56i | Nokia N73 | BlackBerry 7750 | ZTE Z331 |
| 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 | 101 x 64 pixels |
240 x 320 pixels LCD (TFT/TFD) |
240 x 240 pixels LCD (Color) |
176 x 220 pixels (~117 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | ? | ? | ? |
| Battery | 700 mAh | 1,100 mAh | ? | 950 mAh |
| Processor | ? | ? | ? | ? |
| RAM | ? | ? | ? | ? |
| Storage | ? raw hardware | ? raw hardware | ? raw hardware | ? raw hardware |
| Main Camera | - | 3 megapixel | - | 3 megapixel |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | - | CIF (352 x 288) | - | QCIF (176 x 144) |
| Front Camera | - | - | - | - |
| Weight |
3 oz (85g) |
4.09 oz (116g) |
5.01 oz (142g) |
4 oz (113g) |
| Dimensions |
4" x 1.7" x 0.8" (102 x 43 x 20.3 mm) |
4.33" x 1.93" x 0.75" (110 x 49 x 19.1 mm) |
4.76" x 3.03" x 0.71" (121 x 77 x 18 mm) |
3.84" x 2.02" x 0.69" (98 x 51 x 17.5 mm) |
| Form Factor | Slab | Slab | Slab | Clamshell |
| Platform / OS | (proprietary) | S60 (Symbian) | BlackBerry OS | (proprietary) |
| Network Bands |
GSM: 850, 1900 |
WCDMA: 1 GSM: 850, 900, 1800, 1900 |
CDMA: 850, 1900 |
WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
| Data Technology | - | EDGE | 1xRTT | HSDPA 3.6 |
| Features | ||||
| GPS / Location | Yes | n/a | n/a | Yes |
| Accessibility | ||||
| Hearing Aid Compatible | - | - | - |
Yes M3, T4 (very tele-coil compatible) |
| Multiple Languages | - | n/a | n/a | Yes |
| TTY/TDD (Digital) | Yes | - | Yes | Yes |
| Alerts | ||||
| Extra Display | - | - | - | Yes |
| Ringer Profiles | Yes | Yes | Yes | Yes |
| Connectivity | ||||
| Bluetooth | - | Yes | - | Yes |
| Infrared (IR) | - | Yes | - | - |
| USB | - | Yes | Yes |
Yes Micro-USB |
| Contacts | ||||
| Picture ID | Yes | n/a | n/a | Yes |
| Ringer ID | Yes | n/a | n/a | Yes |
| Voice Dialing | - | n/a | n/a | - |
| Customization | ||||
| Changeable Body Plates | Yes | - | - | - |
| Custom Graphics | Yes | n/a | n/a | Yes |
| Custom Ringtones | Yes | n/a | n/a | Yes |
| Real-Music Ringers | - | n/a | n/a | Yes |
| Data & Network | ||||
| Data Tethering | - | n/a | n/a | Yes |
| WAP / Web Browser | Yes | n/a | n/a | Yes |
| Input | ||||
| Predictive Text Entry | Yes | n/a | n/a | Yes |
| Side Keys | - | Yes | Yes | Yes |
| Text Keyboard, Hardware | - | - | Yes | - |
| Memory | ||||
| Memory Card Slot | - | Yes | - | Yes |
| Messaging | ||||
| Email Client | - | n/a | n/a | Yes |
| EMS / Picture Messaging | Yes | n/a | n/a | - |
| Instant Messaging | - | n/a | n/a | Yes |
| MMS | - | n/a | n/a | Yes |
| Text Messaging Templates | - | n/a | n/a | Yes |
| Music | ||||
| FM Radio | - | Yes | - | - |
| Music Player | - | n/a | n/a | Yes |
| Stereo Speakers | - | Yes | - | - |
| Photo & Video | ||||
| Video Calling | - | n/a | n/a | - |
| Productivity | ||||
| Alarm | Yes | n/a | n/a | Yes |
| Calculator | Yes | n/a | n/a | Yes |
| Calendar | - | n/a | n/a | Yes |
| To-Do List | - | n/a | n/a | - |
| Voice Memo | - | n/a | n/a | Yes |
| Software | ||||
| Games | Yes | n/a | n/a | Yes |
| Java (J2ME) | - | n/a | n/a | Yes |
| Voice | ||||
| Headset Jack (2.5 mm) | - | n/a | n/a | - |
| Push-To-Talk | - | Yes * | - | - |
| Speaker Phone | - | Yes | - | Yes |
| * Some versions only | ||||
| Siemens A56 / A56i | Nokia N73 | BlackBerry 7750 | ZTE Z331 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Siemens A56 / A56i | Nokia N73 | BlackBerry 7750 | ZTE Z331 |
