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| Phone | Samsung SCH-A990 | Siemens CT56 | Samsung SGH-D520 | Huawei M750 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size | ? | ? | ? |
2.8" diag. 4 : 3 |
| Display Resolution & Type |
240 x 320 pixels LCD (TFT/TFD) |
101 x 64 pixels |
176 x 220 pixels LCD (TFT/TFD) |
240 x 320 pixels (~143 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | ? | ? | ? |
| Battery | 1,000 mAh | 700 mAh | 800 mAh | 1,150 mAh |
| Processor | ? | ? | ? | ? |
| RAM | ? | ? | ? | ? |
| Storage | ? raw hardware | ? raw hardware | ? raw hardware | ? raw hardware |
| Main Camera | 3 megapixel | - | 1 megapixel | 1 megapixel |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | ? | - | CIF (352 x 288) | - |
| Front Camera | - | - | - | - |
| Weight |
4.4 oz (125g) |
2.96 oz (84g) |
3.32 oz (94g) |
3.92 oz (111g) |
| Dimensions |
3.8" x 1.88" x 0.82" (97 x 48 x 20.8 mm) |
3.98" x 1.73" x 0.83" (101 x 44 x 21.1 mm) |
3.98" x 1.81" x 0.63" (101 x 46 x 16 mm) |
4.21" x 2.25" x 0.59" (107 x 57 x 14.9 mm) |
| Form Factor | Clamshell | Slab | Slide | Slab |
| Platform / OS | (proprietary) | (proprietary) | (proprietary) | (proprietary) |
| Network Bands |
CDMA: 850, 1900 |
GSM: 850, 1900 |
GSM: 900, 1800, 1900 |
CDMA: 850, 1700, 1900 |
| Data Technology | EVDO r0 | GPRS | GPRS | 1xRTT |
| Features | ||||
| Flashlight | Yes | - | - | - |
| GPS / Location | Yes | Yes | - | Yes |
| Accessibility | ||||
| Hearing Aid Compatible |
Yes M3 (mostly compatible) |
- | - |
Yes M3 (mostly compatible) |
| Multiple Languages | Yes | Yes | Yes | - |
| TTY/TDD (Digital) | Yes | Yes | - | Yes |
| Alerts | ||||
| Extra Display | Yes | - | - | - |
| Connectivity | ||||
| Bluetooth | Yes | - | Yes | Yes |
| USB | Yes | Yes | - | Yes |
| Contacts | ||||
| Picture ID | Yes | - | Yes | Yes |
| Ringer ID | Yes | - | Yes | Yes |
| Voice Dialing | Yes | Yes | - | - |
| Customization | ||||
| Changeable Body Plates | - | Yes | - | - |
| Custom Graphics | Yes | Yes | Yes | Yes |
| Custom Ringtones | Yes | Yes | Yes | Yes |
| Real-Music Ringers | Yes | - | - | - |
| Data & Network | ||||
| Data Tethering | Yes | Yes | Yes | - |
| External Antenna Jack | - | - | Yes | - |
| WAP / Web Browser | Yes | Yes | Yes | Yes |
| Input | ||||
| Predictive Text Entry | Yes | Yes | Yes | - |
| Side Keys | Yes | - | Yes | Yes |
| Stylus | - | - | - | Yes |
| Touch Screen | - | - | - |
Yes Resistive |
| Memory | ||||
| Memory Card Slot | Yes | - | - | Yes |
| Messaging | ||||
| Email Client | - | - | Yes | Yes |
| EMS / Picture Messaging | Yes | Yes | - | - |
| Instant Messaging | - | - | - | Yes |
| MMS | Yes | - | Yes | Yes |
| Text Messaging Templates | Yes | - | Yes | Yes |
| Music | ||||
| Headphone Jack (3.5mm) | - | - | - | Yes |
| Music Player | Yes | - | - | Yes |
| Stereo Speakers | Yes | - | - | - |
| Photo & Video | ||||
| TV Output | Yes | - | - | - |
| Productivity | ||||
| Alarm | Yes | - | Yes | Yes |
| Calculator | Yes | - | Yes | Yes |
| Calendar | Yes | - | Yes | Yes |
| To-Do List | - | - | Yes | - |
| Voice Memo | Yes | - | Yes | Yes |
| Software | ||||
| BREW | Yes | - | - | Yes |
| Games | Yes | - | Yes | Yes |
| Java (J2ME) | - | Yes | Yes | - |
| Voice | ||||
| Speaker Phone | Yes | Yes | Yes | Yes |
| Samsung SCH-A990 | Siemens CT56 | Samsung SGH-D520 | Huawei M750 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SCH-A990 | Siemens CT56 | Samsung SGH-D520 | Huawei M750 |
