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| Phone | Sony Ericsson Z550a | Samsung SGH-E400 | Siemens C56 | Pantech C630 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Not yet released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size |
1.9" diag. 4 : 3 |
? | ? |
1.8" diag. 4 : 3 |
| Display Resolution & Type |
176 x 220 pixels (~148 ppi) LCD (TFT/TFD) |
128 x 144 pixels LCD (TFT/TFD) |
101 x 64 pixels |
176 x 220 pixels (~160 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | ? | ? | ? |
| Battery | ? | 700 mAh | 700 mAh | 930 mAh |
| Processor | ? | ? | ? | ? |
| RAM | ? | ? | ? | ? |
| Storage | ? raw hardware | ? raw hardware | ? raw hardware | ? raw hardware |
| Main Camera | 1 megapixel | - | - | 1 megapixel |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | ? | - | - | QCIF (176 x 144) |
| Front Camera | - | - | - | - |
| Weight |
3.26 oz (92g) |
3.1 oz (88g) |
3 oz (85g) |
2.77 oz (79g) |
| Dimensions |
3.43" x 1.77" x 0.79" (87 x 45 x 20.1 mm) |
3.46" x 1.65" x 0.89" (88 x 42 x 22.6 mm) |
3.98" x 1.73" x 0.83" (101 x 44 x 21.1 mm) |
4.1" x 1.7" x 0.46" (104 x 43 x 11.7 mm) |
| Form Factor | Clamshell | Clamshell | Slab | Slab |
| Platform / OS | (proprietary) | (proprietary) | (proprietary) | (proprietary) |
| Network Bands |
GSM: 850, 900, 1800, 1900 |
GSM: 900, 1800, 1900 |
GSM: 850, 1900 |
WCDMA: 2, 5 GSM: 850, 900, 1800, 1900 |
| Data Technology | GPRS | GPRS | GPRS | HSDPA 3.6 |
| Features | ||||
| GPS / Location | - | - | Yes | Yes |
| Accessibility | ||||
| Multiple Languages | Yes | Yes | Yes | Yes |
| TTY/TDD (Digital) | Yes | - | Yes | Yes |
| Alerts | ||||
| Extra Display | Yes | Yes | - | - |
| Ringer Profiles | Yes | - | Yes | Yes |
| Connectivity | ||||
| Bluetooth | Yes | - | - | Yes |
| Infrared (IR) | - | Yes | - | - |
| USB | Yes | - | Yes | Yes |
| Contacts | ||||
| Picture ID | Yes | - | - | Yes |
| Ringer ID | Yes | - | Yes | Yes |
| Voice Dialing | Yes | - | Yes | Yes |
| Customization | ||||
| Changeable Body Plates | - | - | Yes | - |
| Custom Graphics | Yes | Yes | Yes | Yes |
| Custom Ringtones | Yes | Yes | Yes | Yes |
| Real-Music Ringers | Yes | - | - | Yes |
| Data & Network | ||||
| Data Tethering | Yes | Yes | Yes | - |
| WAP / Web Browser | Yes | Yes | Yes | Yes |
| Input | ||||
| Predictive Text Entry | Yes | Yes | Yes | Yes |
| Side Keys | Yes | Yes | - | Yes |
| Memory | ||||
| Memory Card Slot | Yes | - | - | Yes |
| Messaging | ||||
| Email Client | Yes | - | - | Yes |
| EMS / Picture Messaging | - | Yes | Yes | - |
| Instant Messaging | - | - | - | Yes |
| MMS | Yes | - | - | Yes |
| Text Messaging Templates | Yes | Yes | Yes | Yes |
| Music | ||||
| FM Radio | Yes | - | - | - |
| Music Player | Yes | - | - | Yes |
| Productivity | ||||
| Alarm | Yes | Yes | Yes | Yes |
| Calculator | Yes | Yes | Yes | Yes |
| Calendar | Yes | Yes | Yes | Yes |
| To-Do List | Yes | Yes | - | - |
| Voice Memo | Yes | - | - | Yes |
| Software | ||||
| Games | Yes | Yes | Yes | Yes |
| Java (J2ME) | Yes | Yes | Yes | Yes |
| Voice | ||||
| Headset Jack (2.5 mm) | - | Yes | - | - |
| Push-To-Talk | Yes * | - | - | - |
| Speaker Phone | Yes | - | Yes | Yes |
| * Some versions only | ||||
| Sony Ericsson Z550a | Samsung SGH-E400 | Siemens C56 | Pantech C630 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Sony Ericsson Z550a | Samsung SGH-E400 | Siemens C56 | Pantech C630 |
