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| Phone | HTC ThunderBolt | Samsung SCH-A990 | Motorola Charm | Samsung SCH-A890 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size |
4.3" diag. 5 : 3 |
? |
2.8" diag. 4 : 3 |
? |
| Display Resolution & Type |
480 x 800 pixels (~217 ppi) LCD (TFT/TFD) |
240 x 320 pixels LCD (TFT/TFD) |
320 x 240 pixels (~143 ppi) LCD (TFT/TFD) |
176 x 220 pixels LCD (TFT/TFD) |
| Display Refresh | 60 Hz | ? | 60 Hz | ? |
| Battery | 1,400 mAh | 1,000 mAh | 1,170 mAh | ? |
| Processor | 1 GHz Qualcomm Snapdragon S2 MSM8655 | ? | 720 MHz TI OMAP3410 | ? |
| RAM | 768 MB | ? | ? | ? |
| Storage | 8 GB | ? raw hardware | ? raw hardware | ? raw hardware |
| Main Camera | 8 megapixel | 3 megapixel | 3 megapixel | 1 megapixel |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | 720p HD | ? | ? | ? |
| Front Camera | 1 megapixel | - | - | - |
| Weight |
5.78 oz (164g) |
4.4 oz (125g) |
3.88 oz (110g) |
2.8 oz (79g) |
| Dimensions |
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) |
3.87" x 2.65" x 0.45" (98 x 67 x 11.4 mm) |
3.5" x 1.97" x 0.98" (89 x 50 x 24.9 mm) |
| Form Factor | Slab | Clamshell | Slab | Clamshell |
| Platform / OS | Android | (proprietary) | Android | (proprietary) |
| Network Bands |
4G LTE: 13 CDMA: 850, 1900 |
CDMA: 850, 1900 |
CDMA: 850, 1900 |
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| Data Technology | LTE (Cat 3) | EVDO r0 | HSDPA 3.6 | EVDO r0 |
| Features | ||||
| Flashlight | Yes | Yes | - | - |
| GPS / Location | n/a | Yes | n/a | Yes |
| Accessibility | ||||
| Hearing Aid Compatible | Yes |
Yes M3 (mostly compatible) |
- | - |
| Multiple Languages | n/a | Yes | n/a | Yes |
| TTY/TDD (Digital) | Yes | Yes | Yes | Yes |
| Alerts | ||||
| Extra Display | - | Yes | - | Yes |
| Ringer Profiles | - | - | - | Yes |
| Connectivity | ||||
| Bluetooth | Yes | Yes | Yes | - |
| Mobile Hotspot | n/a | - | n/a | - |
| USB |
Yes Micro-USB |
Yes |
Yes Micro-USB |
- |
| Wi-Fi |
Yes 4 (802.11 b,g,n) |
- |
Yes 4 (802.11 b,g,n) |
- |
| Contacts | ||||
| Picture ID | n/a | Yes | n/a | Yes |
| Ringer ID | n/a | Yes | n/a | Yes |
| Voice Dialing | n/a | Yes | n/a | Yes |
| Customization | ||||
| Custom Graphics | n/a | Yes | n/a | Yes |
| Custom Ringtones | n/a | Yes | n/a | Yes |
| Real-Music Ringers | n/a | Yes | n/a | - |
| Data & Network | ||||
| Data Tethering | n/a | Yes | n/a | - |
| WAP / Web Browser | n/a | Yes | n/a | Yes |
| Input | ||||
| Predictive Text Entry | n/a | Yes | n/a | Yes |
| Side Keys | Yes | Yes | Yes | Yes |
| Text Keyboard, Hardware | - | - | Yes | - |
| Touch Screen |
Yes Capacitive |
- |
Yes Capacitive |
- |
| Memory | ||||
| Memory Card Slot | Yes | Yes | Yes | - |
| Messaging | ||||
| Email Client | n/a | - | n/a | - |
| EMS / Picture Messaging | n/a | Yes | n/a | - |
| Instant Messaging | n/a | - | n/a | - |
| MMS | n/a | Yes | n/a | Yes |
| Text Messaging Templates | n/a | Yes | n/a | Yes |
| Music | ||||
| FM Radio | Yes | - | - | - |
| Headphone Jack (3.5mm) | Yes | - | Yes | - |
| Music Player | n/a | Yes | n/a | - |
| Stereo Speakers | - | Yes | - | - |
| Photo & Video | ||||
| DLNA | Yes | - | - | - |
| TV Output | - | Yes | - | - |
| Video Calling | n/a | - | n/a | - |
| Productivity | ||||
| Alarm | n/a | Yes | n/a | Yes |
| Calculator | n/a | Yes | n/a | Yes |
| Calendar | n/a | Yes | n/a | Yes |
| To-Do List | n/a | - | n/a | Yes |
| Voice Memo | n/a | Yes | n/a | Yes |
| Software | ||||
| BREW | n/a | Yes | n/a | Yes |
| Games | n/a | Yes | n/a | Yes |
| Voice | ||||
| Headset Jack (2.5 mm) | n/a | - | n/a | Yes |
| Speaker Phone | Yes | Yes | Yes | - |
| HTC ThunderBolt | Samsung SCH-A990 | Motorola Charm | Samsung SCH-A890 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | HTC ThunderBolt | Samsung SCH-A990 | Motorola Charm | Samsung SCH-A890 |
