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| Phone | Samsung SGH-X640 | Pantech Duo C810 | Sony Ericsson T608 | Pantech C630 | Sony Ericsson K850 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released | Released |
| Specifications | |||||
|---|---|---|---|---|---|
| Display Size | ? |
2.2" diag. 4 : 3 |
? |
1.8" diag. 4 : 3 |
2.2" diag. 4 : 3 |
| Display Resolution & Type |
128 x 160 pixels LCD (TFT/TFD) |
240 x 320 pixels (~182 ppi) LCD (TFT/TFD) |
128 x 128 pixels LCD (STN) |
176 x 220 pixels (~160 ppi) LCD (TFT/TFD) |
240 x 320 pixels (~182 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | ? | ? | ? | ? |
| Battery | 800 mAh | 1,320 mAh | 770 mAh | 930 mAh | ? |
| Processor | ? | ARM 920t PXA27x | ? | ? | ? |
| RAM | ? | ? | ? | ? | ? |
| Storage | ? raw hardware | ? raw hardware | ? raw hardware | ? raw hardware | ? raw hardware |
| Main Camera | Yes | 1 megapixel | - | 1 megapixel | 5 megapixel |
| Wide Camera | - | - | - | - | - |
| Tele Camera | - | - | - | - | - |
| Video Capture | - | QVGA (320 x 240) | - | QCIF (176 x 144) | ? |
| Front Camera | - | - | - | - | - |
| Weight |
3 oz (85g) |
3.88 oz (110g) |
3.49 oz (99g) |
2.77 oz (79g) |
4.2 oz (119g) |
| Dimensions |
3.43" x 1.81" x 0.91" (87 x 46 x 23.1 mm) |
4.01" x 1.97" x 0.78" (102 x 50 x 19.8 mm) |
4.17" x 1.89" x 0.75" (106 x 48 x 19.1 mm) |
4.1" x 1.7" x 0.46" (104 x 43 x 11.7 mm) |
4" x 1.9" x 0.7" (102 x 48 x 17.8 mm) |
| Form Factor | Clamshell | Slide | Slab | Slab | Slab |
| Platform / OS | (proprietary) | Windows Mobile Standard | (proprietary) | (proprietary) | (proprietary) |
| Network Bands |
GSM: 900, 1800, 1900 |
WCDMA: 2, 5 GSM: 850, 900, 1800, 1900 |
CDMA: 850, 1900 AMPS: 850 |
WCDMA: 2, 5 GSM: 850, 900, 1800, 1900 |
WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
| Data Technology | GPRS | HSDPA 1.8 | 1xRTT | HSDPA 3.6 | HSDPA 3.6 |
| Features | |||||
| GPS / Location | - | n/a | Yes | Yes | - |
| Accessibility | |||||
| Multiple Languages | Yes | n/a | Yes | Yes | Yes |
| TTY/TDD (Digital) | - | - | Yes | Yes | Yes |
| Alerts | |||||
| Ringer Profiles | - | Yes | Yes | Yes | Yes |
| Connectivity | |||||
| Bluetooth | - | Yes | Yes | Yes | Yes |
| USB | - | Yes | - | Yes | Yes |
| Contacts | |||||
| Picture ID | Yes | n/a | Yes | Yes | Yes |
| Ringer ID | Yes | n/a | Yes | Yes | Yes |
| Voice Dialing | - | n/a | Yes | Yes | Yes |
| Customization | |||||
| Custom Graphics | Yes | n/a | Yes | Yes | Yes |
| Custom Ringtones | Yes | n/a | Yes | Yes | Yes |
| Real-Music Ringers | - | n/a | - | Yes | Yes |
| Data & Network | |||||
| Data Tethering | - | n/a | Yes | - | Yes |
| WAP / Web Browser | Yes | n/a | Yes | Yes | Yes |
| Input | |||||
| Predictive Text Entry | Yes | n/a | Yes | Yes | Yes |
| Side Keys | Yes | Yes | Yes | Yes | Yes |
| Text Keyboard, Hardware | - | Yes | - | - | - |
| Memory | |||||
| Memory Card Slot | - | Yes | - | Yes | Yes |
| Messaging | |||||
| Email Client | - | n/a | - | Yes | Yes |
| EMS / Picture Messaging | Yes | n/a | - | - | - |
| Instant Messaging | - | n/a | - | Yes | - |
| MMS | Yes | n/a | - | Yes | Yes |
| Text Messaging Templates | Yes | n/a | - | Yes | Yes |
| Music | |||||
| FM Radio | - | - | - | - | Yes |
| Music Player | - | n/a | - | Yes | Yes |
| Photo & Video | |||||
| Video Calling | - | n/a | - | - | Yes * |
| Productivity | |||||
| Alarm | Yes | n/a | Yes | Yes | Yes |
| Calculator | Yes | n/a | Yes | Yes | Yes |
| Calendar | Yes | n/a | Yes | Yes | Yes |
| To-Do List | Yes | n/a | Yes | - | Yes |
| Voice Memo | Yes | n/a | Yes | Yes | Yes |
| Software | |||||
| Games | Yes | n/a | Yes | Yes | Yes |
| Java (J2ME) | Yes | n/a | Yes | Yes | Yes |
| Voice | |||||
| Headset Jack (2.5 mm) | Yes | n/a | Yes | - | - |
| Speaker Phone | Yes | Yes | Yes | Yes | Yes |
| * Some versions only | |||||
| Samsung SGH-X640 | Pantech Duo C810 | Sony Ericsson T608 | Pantech C630 | Sony Ericsson K850 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SGH-X640 | Pantech Duo C810 | Sony Ericsson T608 | Pantech C630 | Sony Ericsson K850 |
