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| Phone | HTC ThunderBolt | Sony Ericsson K850 | Sony Ericsson Z550a | Sony Xperia Z3 Compact |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size |
4.3" diag. 5 : 3 |
2.2" diag. 4 : 3 |
1.9" diag. 4 : 3 |
4.6" diag. 16 : 9 |
| Display Resolution & Type |
480 x 800 pixels (~217 ppi) LCD (TFT/TFD) |
240 x 320 pixels (~182 ppi) LCD (TFT/TFD) |
176 x 220 pixels (~148 ppi) LCD (TFT/TFD) |
720 x 1280 pixels (~319 ppi) LCD (TFT/TFD) |
| Display Refresh | 60 Hz | ? | ? | 60 Hz |
| Battery | 1,400 mAh | ? | ? | 2,600 mAh |
| Processor | 1 GHz Qualcomm Snapdragon S2 MSM8655 | ? | ? | 2.5 GHz Qualcomm Snapdragon 801 (MSM8974AC) |
| RAM | 768 MB | ? | ? | 2 GB |
| Storage | 8 GB | ? raw hardware | ? raw hardware | 16 GB |
| Main Camera | 8 megapixel | 5 megapixel | 1 megapixel | 20 megapixel |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | 720p HD | ? | ? | 4K UHD |
| Front Camera | 1 megapixel | - | - | 2 megapixel |
| Weight |
5.78 oz (164g) |
4.2 oz (119g) |
3.26 oz (92g) |
4.55 oz (129g) |
| Dimensions |
4.8" x 2.6" x 0.52" (122 x 66 x 13.2 mm) |
4" x 1.9" x 0.7" (102 x 48 x 17.8 mm) |
3.43" x 1.77" x 0.79" (87 x 45 x 20.1 mm) |
5" x 2.56" x 0.34" (127 x 65 x 8.6 mm) |
| Form Factor | Slab | Slab | Clamshell | Slab |
| Platform / OS | Android | (proprietary) | (proprietary) | Android |
| Network Bands |
4G LTE: 13 CDMA: 850, 1900 |
WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
GSM: 850, 900, 1800, 1900 |
4G LTE: 1, 2, 3, 4, 5, 7, 8, 13, 17 WCDMA: 1, 2, 4, 5, 8 GSM: 850, 900, 1800, 1900 |
| Data Technology | LTE (Cat 3) | HSDPA 3.6 | GPRS | LTE (Cat 4) |
| Features | ||||
| Flashlight | Yes | - | - | - |
| GPS / Location | n/a | - | - | n/a |
| Ruggedized | - | - | - | Yes |
| Water-Resistant | - | - | - |
Yes IPX8 (SCUBA) |
| Accessibility | ||||
| Adjustable Text Size | n/a | - | - | n/a |
| Hearing Aid Compatible | Yes | - | - |
Yes M3, T4 (very tele-coil compatible) |
| Multiple Languages | n/a | Yes | Yes | n/a |
| TTY/TDD (Digital) | Yes | Yes | Yes | Yes |
| Alerts | ||||
| Extra Display | - | - | Yes | - |
| Ringer Profiles | - | Yes | Yes | - |
| Connectivity | ||||
| Bluetooth | Yes | Yes | Yes | Yes |
| Mobile Hotspot | n/a | - | - | n/a |
| NFC | - | - | - | Yes |
| USB |
Yes Micro-USB |
Yes | Yes |
Yes Micro-USB |
| Wi-Fi |
Yes 4 (802.11 b,g,n) |
- | - |
Yes 5 (802.11 a,ac,b,g,n) |
| Contacts | ||||
| Picture ID | n/a | Yes | Yes | n/a |
| Ringer ID | n/a | Yes | Yes | n/a |
| Voice Dialing | n/a | Yes | Yes | n/a |
| Customization | ||||
| Custom Graphics | n/a | Yes | Yes | n/a |
| Custom Ringtones | n/a | Yes | Yes | n/a |
| Real-Music Ringers | n/a | Yes | Yes | n/a |
| Data & Network | ||||
| Data Tethering | n/a | Yes | Yes | n/a |
| WAP / Web Browser | n/a | Yes | Yes | n/a |
| Input | ||||
| Predictive Text Entry | n/a | Yes | Yes | n/a |
| Side Keys | Yes | Yes | Yes | Yes |
| Touch Screen |
Yes Capacitive |
- | - |
Yes Capacitive |
| Memory | ||||
| Memory Card Slot | Yes | Yes | Yes | Yes |
| Messaging | ||||
| Email Client | n/a | Yes | Yes | n/a |
| Instant Messaging | n/a | - | - | n/a |
| MMS | n/a | Yes | Yes | n/a |
| Text Messaging Templates | n/a | Yes | Yes | n/a |
| Music | ||||
| FM Radio | Yes | Yes | Yes | Yes |
| Headphone Jack (3.5mm) | Yes | - | - | Yes |
| Music Player | n/a | Yes | Yes | n/a |
| Stereo Speakers | - | - | - | Yes |
| Photo & Video | ||||
| DLNA | Yes | - | - | Yes |
| Miracast | - | - | - | Yes |
| TV Output | - | - | - | Yes |
| Video Calling | n/a | Yes * | - | n/a |
| Power | ||||
| Fast Charging | - | - | - | Yes |
| Productivity | ||||
| Alarm | n/a | Yes | Yes | n/a |
| Calculator | n/a | Yes | Yes | n/a |
| Calendar | n/a | Yes | Yes | n/a |
| To-Do List | n/a | Yes | Yes | n/a |
| Voice Memo | n/a | Yes | Yes | n/a |
| Software | ||||
| Games | n/a | Yes | Yes | n/a |
| Java (J2ME) | n/a | Yes | Yes | n/a |
| Voice | ||||
| Call Screening | - | - | - | Yes |
| Push-To-Talk | - | - | Yes * | - |
| Speaker Phone | Yes | Yes | Yes | Yes |
| * Some versions only | ||||
| HTC ThunderBolt | Sony Ericsson K850 | Sony Ericsson Z550a | Sony Xperia Z3 Compact | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | HTC ThunderBolt | Sony Ericsson K850 | Sony Ericsson Z550a | Sony Xperia Z3 Compact |
