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| Phone | Huawei Union | Samsung SCH-A990 | Siemens CT66 / C66 / C65 / C71 / C70 | Samsung Trance SCH-U490 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size |
4.5" diag. 16 : 9 |
? | ? |
2.1" diag. 4 : 3 |
| Display Resolution & Type |
480 x 854 pixels (~218 ppi) LCD (TFT/TFD) |
240 x 320 pixels LCD (TFT/TFD) |
130 x 130 pixels LCD (Color) |
176 x 220 pixels (~134 ppi) LCD (TFT/TFD) |
| Display Refresh | 60 Hz | ? | ? | ? |
| Battery | 2,000 mAh | 1,000 mAh | 600 mAh | ? |
| Processor | 1.1 GHz Qualcomm Snapdragon 210 (MSM8909) | ? | ? | ? |
| RAM | 1 GB | ? | ? | ? |
| Storage | 8 GB | ? raw hardware | ? raw hardware | ? raw hardware |
| Main Camera | 5 megapixel | 3 megapixel | Yes | 1 megapixel |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | 720p HD | ? | - | - |
| Front Camera | - | - | - | - |
| Weight |
4.97 oz (141g) |
4.4 oz (125g) |
3 oz (85g) |
3.53 oz (100g) |
| Dimensions |
5.33" x 2.67" x 0.39" (135 x 68 x 9.9 mm) |
3.8" x 1.88" x 0.82" (97 x 48 x 20.8 mm) |
4.1" x 1.8" x 0.7" (104 x 46 x 17.8 mm) |
4" x 1.97" x 0.55" (102 x 50 x 14 mm) |
| Form Factor | Slab | Clamshell | Slab | Slide |
| Platform / OS | Android | (proprietary) | (proprietary) | (proprietary) |
| Network Bands |
4G LTE: 25, 26, 41 WCDMA: 2, 5 CDMA: 800, 850, 1900 GSM: 850, 900, 1800, 1900 |
CDMA: 850, 1900 |
GSM: 850, 1800, 1900 |
CDMA: 850, 1900 |
| Data Technology | LTE (Cat 3) | EVDO r0 | GPRS | 1xRTT |
| Features | ||||
| Flashlight | - | Yes | - | - |
| GPS / Location | n/a | Yes | - | Yes |
| Accessibility | ||||
| Adjustable Text Size | n/a | - | - | Yes |
| Hearing Aid Compatible |
Yes M3, T3 (mostly tele-coil compatible) |
Yes M3 (mostly compatible) |
- |
Yes M4, T3 (mostly tele-coil compatible) |
| Multiple Languages | n/a | Yes | Yes | Yes |
| TTY/TDD (Digital) | Yes | Yes | - | Yes |
| Alerts | ||||
| Extra Display | - | Yes | - | - |
| Ringer Profiles | - | - | Yes | - |
| Connectivity | ||||
| Bluetooth | Yes | Yes | - | Yes |
| Infrared (IR) | - | - | Yes | - |
| Mobile Hotspot | n/a | - | - | - |
| USB |
Yes Micro-USB |
Yes | Yes | Yes |
| Wi-Fi |
Yes 4 (802.11 b,g,n) |
- | - | - |
| Contacts | ||||
| Picture ID | n/a | Yes | Yes | Yes |
| Ringer ID | n/a | Yes | Yes | Yes |
| Voice Dialing | n/a | Yes | - | Yes |
| Customization | ||||
| Changeable Body Plates | - | - | Yes | - |
| Custom Graphics | n/a | Yes | Yes | Yes |
| Custom Ringtones | n/a | Yes | Yes | Yes |
| Real-Music Ringers | n/a | Yes | - | Yes |
| Data & Network | ||||
| Data Tethering | n/a | Yes | - | Yes |
| WAP / Web Browser | n/a | Yes | Yes | Yes |
| Input | ||||
| Predictive Text Entry | n/a | Yes | Yes | Yes |
| Side Keys | Yes | Yes | - | Yes |
| Touch Screen |
Yes Capacitive |
- | - | - |
| Memory | ||||
| Memory Card Slot | Yes | Yes | - | Yes |
| Messaging | ||||
| Email Client | n/a | - | - | - |
| EMS / Picture Messaging | n/a | Yes | Yes | - |
| MMS | n/a | Yes | Yes | Yes |
| Text Messaging Templates | n/a | Yes | Yes | Yes |
| Music | ||||
| FM Radio | Yes | - | - | - |
| Headphone Jack (3.5mm) | Yes | - | - | Yes |
| Music Player | n/a | Yes | - | Yes |
| Stereo Speakers | Yes | Yes | - | - |
| Photo & Video | ||||
| TV Output | - | Yes | - | - |
| Productivity | ||||
| Alarm | n/a | Yes | Yes | Yes |
| Calculator | n/a | Yes | Yes | Yes |
| Calendar | n/a | Yes | Yes | Yes |
| To-Do List | n/a | - | Yes | - |
| Voice Memo | n/a | Yes | Yes | Yes |
| Software | ||||
| BREW | n/a | Yes | - | Yes |
| Games | n/a | Yes | Yes | Yes |
| Java (J2ME) | n/a | - | Yes | - |
| Voice | ||||
| Call Screening | - | - | Yes | - |
| Push-To-Talk | - | - | Yes * | - |
| Speaker Phone | Yes | Yes | Yes | Yes |
| * Some versions only | ||||
| Huawei Union | Samsung SCH-A990 | Siemens CT66 / C66 / C65 / C71 / C70 | Samsung Trance SCH-U490 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Huawei Union | Samsung SCH-A990 | Siemens CT66 / C66 / C65 / C71 / C70 | Samsung Trance SCH-U490 |
