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| Phone | Siemens SK65 | Siemens CT66 / C66 / C65 / C71 / C70 | HTC ThunderBolt | Samsung SCH-A990 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size | ? | ? |
4.3" diag. 5 : 3 |
? |
| Display Resolution & Type |
132 x 176 pixels LCD (TFT/TFD) |
130 x 130 pixels LCD (Color) |
480 x 800 pixels (~217 ppi) LCD (TFT/TFD) |
240 x 320 pixels LCD (TFT/TFD) |
| Display Refresh | ? | ? | 60 Hz | ? |
| Battery | 750 mAh | 600 mAh | 1,400 mAh | 1,000 mAh |
| Processor | ? | ? | 1 GHz Qualcomm Snapdragon S2 MSM8655 | ? |
| RAM | ? | ? | 768 MB | ? |
| Storage | ? raw hardware | ? raw hardware | 8 GB | ? raw hardware |
| Main Camera | - | Yes | 8 megapixel | 3 megapixel |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | - | - | 720p HD | ? |
| Front Camera | - | - | 1 megapixel | - |
| Weight |
5.08 oz (144g) |
3 oz (85g) |
5.78 oz (164g) |
4.4 oz (125g) |
| Dimensions |
4.72" x 1.85" x 0.87" (120 x 47 x 22.1 mm) |
4.1" x 1.8" x 0.7" (104 x 46 x 17.8 mm) |
4.8" x 2.6" x 0.52" (122 x 66 x 13.2 mm) |
3.8" x 1.88" x 0.82" (97 x 48 x 20.8 mm) |
| Form Factor | Slab | Slab | Slab | Clamshell |
| Platform / OS | (proprietary) | (proprietary) | Android | (proprietary) |
| Network Bands |
GSM: 900, 1800, 1900 |
GSM: 850, 1800, 1900 |
4G LTE: 13 CDMA: 850, 1900 |
CDMA: 850, 1900 |
| Data Technology | GPRS | GPRS | LTE (Cat 3) | EVDO r0 |
| Features | ||||
| Flashlight | - | - | Yes | Yes |
| GPS / Location | - | - | n/a | Yes |
| Accessibility | ||||
| Hearing Aid Compatible | - | - | Yes |
Yes M3 (mostly compatible) |
| Multiple Languages | Yes | Yes | n/a | Yes |
| TTY/TDD (Digital) | - | - | Yes | Yes |
| Alerts | ||||
| Extra Display | - | - | - | Yes |
| Ringer Profiles | - | Yes | - | - |
| Connectivity | ||||
| Bluetooth | Yes | - | Yes | Yes |
| Infrared (IR) | Yes | Yes | - | - |
| Mobile Hotspot | - | - | n/a | - |
| USB | Yes | Yes |
Yes Micro-USB |
Yes |
| Wi-Fi | - | - |
Yes 4 (802.11 b,g,n) |
- |
| Contacts | ||||
| Picture ID | - | Yes | n/a | Yes |
| Ringer ID | - | Yes | n/a | Yes |
| Voice Dialing | - | - | n/a | Yes |
| Customization | ||||
| Changeable Body Plates | - | Yes | - | - |
| Custom Graphics | Yes | Yes | n/a | Yes |
| Custom Ringtones | Yes | Yes | n/a | Yes |
| Real-Music Ringers | - | - | n/a | Yes |
| Data & Network | ||||
| Data Tethering | Yes | - | n/a | Yes |
| WAP / Web Browser | Yes | Yes | n/a | Yes |
| Input | ||||
| Predictive Text Entry | - | Yes | n/a | Yes |
| Side Keys | Yes | - | Yes | Yes |
| Text Keyboard, Hardware | Yes | - | - | - |
| Touch Screen | - | - |
Yes Capacitive |
- |
| Memory | ||||
| Memory Card Slot | - | - | Yes | Yes |
| Messaging | ||||
| Email Client | Yes | - | n/a | - |
| EMS / Picture Messaging | - | Yes | n/a | Yes |
| Instant Messaging | - | - | n/a | - |
| MMS | Yes | Yes | n/a | Yes |
| Text Messaging Templates | - | Yes | n/a | Yes |
| Music | ||||
| FM Radio | - | - | Yes | - |
| Headphone Jack (3.5mm) | - | - | Yes | - |
| Music Player | - | - | n/a | Yes |
| Stereo Speakers | - | - | - | Yes |
| Photo & Video | ||||
| DLNA | - | - | Yes | - |
| TV Output | - | - | - | Yes |
| Video Calling | - | - | n/a | - |
| Productivity | ||||
| Alarm | Yes | Yes | n/a | Yes |
| Calculator | Yes | Yes | n/a | Yes |
| Calendar | Yes | Yes | n/a | Yes |
| To-Do List | Yes | Yes | n/a | - |
| Voice Memo | Yes | Yes | n/a | Yes |
| Software | ||||
| BREW | - | - | n/a | Yes |
| Games | Yes | Yes | n/a | Yes |
| Java (J2ME) | Yes | Yes | n/a | - |
| Voice | ||||
| Call Screening | - | Yes | - | - |
| Push-To-Talk | Yes * | Yes * | - | - |
| Speaker Phone | Yes | Yes | Yes | Yes |
| * Some versions only | ||||
| Siemens SK65 | Siemens CT66 / C66 / C65 / C71 / C70 | HTC ThunderBolt | Samsung SCH-A990 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Siemens SK65 | Siemens CT66 / C66 / C65 / C71 / C70 | HTC ThunderBolt | Samsung SCH-A990 |
