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| Phone | Siemens CT66 / C66 / C65 / C71 / C70 | Samsung UpStage M620 | Sony Ericsson T68i | Pantech Duo C810 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size | ? |
2.1" diag. 4 : 3 |
? |
2.2" diag. 4 : 3 |
| Display Resolution & Type |
130 x 130 pixels LCD (Color) |
176 x 220 pixels (~134 ppi) LCD (TFT/TFD) |
101 x 80 pixels LCD (STN) |
240 x 320 pixels (~182 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | ? | ? | ? |
| Battery | 600 mAh | 620 mAh | 700 mAh | 1,320 mAh |
| Processor | ? | ? | ? | ARM 920t PXA27x |
| RAM | ? | ? | ? | ? |
| Storage | ? raw hardware | ? raw hardware | ? raw hardware | ? raw hardware |
| Main Camera | Yes | 1 megapixel | - | 1 megapixel |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | - | ? | - | QVGA (320 x 240) |
| Front Camera | - | - | - | - |
| Weight |
3 oz (85g) |
2.57 oz (73g) |
2.96 oz (84g) |
3.88 oz (110g) |
| Dimensions |
4.1" x 1.8" x 0.7" (104 x 46 x 17.8 mm) |
4.07" x 1.73" x 0.37" (103 x 44 x 9.4 mm) |
3.94" x 1.89" x 0.79" (100 x 48 x 20.1 mm) |
4.01" x 1.97" x 0.78" (102 x 50 x 19.8 mm) |
| Form Factor | Slab | Slab | Slab | Slide |
| Platform / OS | (proprietary) | (proprietary) | (proprietary) | Windows Mobile Standard |
| Network Bands |
GSM: 850, 1800, 1900 |
CDMA: 850, 1900 |
GSM: 900, 1800, 1900 |
WCDMA: 2, 5 GSM: 850, 900, 1800, 1900 |
| Data Technology | GPRS | EVDO r0 | GPRS | HSDPA 1.8 |
| Features | ||||
| Accessibility | ||||
| Adjustable Text Size | - | Yes | - | n/a |
| Hearing Aid Compatible | - |
Yes M4 (very compatible) |
- | - |
| Multiple Languages | Yes | - | Yes | n/a |
| TTY/TDD (Digital) | - | Yes | - | - |
| Alerts | ||||
| Extra Display | - | Yes | - | - |
| Ringer Profiles | Yes | - | Yes | Yes |
| Connectivity | ||||
| Bluetooth | - | Yes | Yes | Yes |
| Infrared (IR) | Yes | - | Yes | - |
| USB | Yes | Yes | - | Yes |
| Contacts | ||||
| Picture ID | Yes | Yes | Yes | n/a |
| Ringer ID | Yes | Yes | Yes | n/a |
| Voice Dialing | - | Yes | Yes | n/a |
| Customization | ||||
| Changeable Body Plates | Yes | - | - | - |
| Custom Graphics | Yes | Yes | Yes | n/a |
| Custom Ringtones | Yes | Yes | Yes | n/a |
| Real-Music Ringers | - | Yes | - | n/a |
| Data & Network | ||||
| Data Tethering | - | - | Yes | n/a |
| External Antenna Jack | - | Yes | - | n/a |
| WAP / Web Browser | Yes | Yes | Yes | n/a |
| Input | ||||
| Predictive Text Entry | Yes | Yes | Yes | n/a |
| Side Keys | - | Yes | Yes | Yes |
| Text Keyboard, Hardware | - | - | - | Yes |
| Memory | ||||
| Memory Card Slot | - | Yes | - | Yes |
| Messaging | ||||
| Email Client | - | - | Yes | n/a |
| EMS / Picture Messaging | Yes | - | Yes | n/a |
| Instant Messaging | - | Yes | - | n/a |
| MMS | Yes | Yes | Yes | n/a |
| Text Messaging Templates | Yes | Yes | Yes | n/a |
| Music | ||||
| Music Player | - | Yes | - | n/a |
| Productivity | ||||
| Alarm | Yes | Yes | Yes | n/a |
| Calculator | Yes | Yes | Yes | n/a |
| Calendar | Yes | Yes | Yes | n/a |
| To-Do List | Yes | Yes | Yes | n/a |
| Voice Memo | Yes | Yes | Yes | n/a |
| Software | ||||
| Games | Yes | Yes | Yes | n/a |
| Java (J2ME) | Yes | Yes | - | n/a |
| Voice | ||||
| Call Screening | Yes | - | - | - |
| Push-To-Talk | Yes * | - | - | - |
| Speaker Phone | Yes | Yes | - | Yes |
| * Some versions only | ||||
| Siemens CT66 / C66 / C65 / C71 / C70 | Samsung UpStage M620 | Sony Ericsson T68i | Pantech Duo C810 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Siemens CT66 / C66 / C65 / C71 / C70 | Samsung UpStage M620 | Sony Ericsson T68i | Pantech Duo C810 |
