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| Phone | Pantech Duo C810 | HTC Windows Phone 8S | Samsung Zeal / Alias 2 SCH-U750 | Siemens CT66 / C66 / C65 / C71 / C70 | Samsung SCH-A990 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released | Released |
| Specifications | |||||
|---|---|---|---|---|---|
| Display Size |
2.2" diag. 4 : 3 |
4" diag. 5 : 3 |
2.6" diag. 4 : 3 |
? | ? |
| Display Resolution & Type |
240 x 320 pixels (~182 ppi) LCD (TFT/TFD) |
480 x 800 pixels (~233 ppi) LCD (TFT/TFD) |
240 x 320 pixels (~154 ppi) LCD (TFT/TFD) |
130 x 130 pixels LCD (Color) |
240 x 320 pixels LCD (TFT/TFD) |
| Display Refresh | ? | ? | ? | ? | ? |
| Battery | 1,320 mAh | 1,700 mAh | 880 mAh | 600 mAh | 1,000 mAh |
| Processor | ARM 920t PXA27x | 1 GHz Qualcomm Snapdragon S4 | ? | ? | ? |
| RAM | ? | 512 MB | ? | ? | ? |
| Storage | ? raw hardware | 4 GB | ? raw hardware | ? raw hardware | ? raw hardware |
| Main Camera | 1 megapixel | 5 megapixel | 2 megapixel | Yes | 3 megapixel |
| Wide Camera | - | - | - | - | - |
| Tele Camera | - | - | - | - | - |
| Video Capture | QVGA (320 x 240) | 720p HD | QCIF (176 x 144) | - | ? |
| Front Camera | - | - | - | - | - |
| Weight |
3.88 oz (110g) |
3.99 oz (113g) |
4.34 oz (123g) |
3 oz (85g) |
4.4 oz (125g) |
| Dimensions |
4.01" x 1.97" x 0.78" (102 x 50 x 19.8 mm) |
4.74" x 2.48" x 0.4" (121 x 63 x 10.3 mm) |
4.01" x 2.04" x 0.67" (102 x 52 x 17 mm) |
4.1" x 1.8" x 0.7" (104 x 46 x 17.8 mm) |
3.8" x 1.88" x 0.82" (97 x 48 x 20.8 mm) |
| Form Factor | Slide | Slab | Clamshell | Slab | Clamshell |
| Platform / OS | Windows Mobile Standard | Windows | (proprietary) | (proprietary) | (proprietary) |
| Network Bands |
WCDMA: 2, 5 GSM: 850, 900, 1800, 1900 |
WCDMA: 2, 4, 5 GSM: 850, 900, 1800, 1900 |
CDMA: 850, 1900 |
GSM: 850, 1800, 1900 |
CDMA: 850, 1900 |
| Data Technology | HSDPA 1.8 | HSPA+ 21 | EVDO r0 | GPRS | EVDO r0 |
| Features | |||||
| Flashlight | - | Yes | - | - | Yes |
| GPS / Location | n/a | n/a | Yes | - | Yes |
| Accessibility | |||||
| Adjustable Text Size | n/a | n/a | Yes | - | - |
| Hearing Aid Compatible | - |
Yes M3, T3 (mostly tele-coil compatible) |
Yes M4 (very compatible) |
- |
Yes M3 (mostly compatible) |
| Multiple Languages | n/a | n/a | Yes | Yes | Yes |
| TTY/TDD (Digital) | - | Yes | Yes | - | Yes |
| Alerts | |||||
| Extra Display | - | - | Yes | - | Yes |
| Ringer Profiles | Yes | - | - | Yes | - |
| Connectivity | |||||
| Bluetooth | Yes | Yes | Yes | - | Yes |
| Infrared (IR) | - | - | - | Yes | - |
| USB | Yes | Yes | Yes | Yes | Yes |
| Wi-Fi | - |
Yes 4 (802.11 b,g,n) |
- | - | - |
| Contacts | |||||
| Picture ID | n/a | n/a | Yes | Yes | Yes |
| Ringer ID | n/a | n/a | Yes | Yes | Yes |
| Voice Dialing | n/a | n/a | Yes | - | Yes |
| Customization | |||||
| Changeable Body Plates | - | - | - | Yes | - |
| Custom Graphics | n/a | n/a | Yes | Yes | Yes |
| Custom Ringtones | n/a | n/a | Yes | Yes | Yes |
| Real-Music Ringers | n/a | n/a | Yes | - | Yes |
| Data & Network | |||||
| Data Tethering | n/a | n/a | Yes | - | Yes |
| WAP / Web Browser | n/a | n/a | Yes | Yes | Yes |
| Input | |||||
| Predictive Text Entry | n/a | n/a | Yes | Yes | Yes |
| Side Keys | Yes | Yes | Yes | - | Yes |
| Text Keyboard, Hardware | Yes | - | Yes | - | - |
| Touch Screen | - |
Yes Capacitive |
- | - | - |
| Memory | |||||
| Memory Card Slot | Yes | Yes | Yes | - | Yes |
| Messaging | |||||
| Email Client | n/a | n/a | Yes | - | - |
| EMS / Picture Messaging | n/a | n/a | - | Yes | Yes |
| Instant Messaging | n/a | n/a | Yes | - | - |
| MMS | n/a | n/a | Yes | Yes | Yes |
| Text Messaging Templates | n/a | n/a | Yes | Yes | Yes |
| Music | |||||
| Headphone Jack (3.5mm) | - | Yes | - | - | - |
| Music Player | n/a | n/a | Yes | - | Yes |
| Stereo Speakers | - | - | - | - | Yes |
| Photo & Video | |||||
| TV Output | - | - | - | - | Yes |
| Productivity | |||||
| Alarm | n/a | n/a | Yes | Yes | Yes |
| Calculator | n/a | n/a | Yes | Yes | Yes |
| Calendar | n/a | n/a | Yes | Yes | Yes |
| To-Do List | n/a | n/a | - | Yes | - |
| Voice Memo | n/a | n/a | Yes | Yes | Yes |
| Software | |||||
| BREW | n/a | n/a | Yes | - | Yes |
| Games | n/a | n/a | Yes | Yes | Yes |
| Java (J2ME) | n/a | n/a | - | Yes | - |
| Voice | |||||
| Call Screening | - | - | - | Yes | - |
| Headset Jack (2.5 mm) | n/a | n/a | Yes | - | - |
| Push-To-Talk | - | - | - | Yes * | - |
| Speaker Phone | Yes | Yes | Yes | Yes | Yes |
| * Some versions only | |||||
| Pantech Duo C810 | HTC Windows Phone 8S | Samsung Zeal / Alias 2 SCH-U750 | Siemens CT66 / C66 / C65 / C71 / C70 | Samsung SCH-A990 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Pantech Duo C810 | HTC Windows Phone 8S | Samsung Zeal / Alias 2 SCH-U750 | Siemens CT66 / C66 / C65 / C71 / C70 | Samsung SCH-A990 |
