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| Phone | Samsung SCH-A990 | Sharp Aquos Crystal | Sony Ericsson Z550a | Pantech Ease |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size | ? |
5" diag. 16 : 9 |
1.9" diag. 4 : 3 |
3.2" diag. 5 : 3 |
| Display Resolution & Type |
240 x 320 pixels LCD (TFT/TFD) |
720 x 1280 pixels (~294 ppi) LCD (TFT/TFD) |
176 x 220 pixels (~148 ppi) LCD (TFT/TFD) |
240 x 400 pixels (~146 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | 60 Hz | ? | ? |
| Battery | 1,000 mAh | 2,040 mAh | ? | 1,000 mAh |
| Processor | ? | 1.2 GHz Qualcomm Snapdragon 400 MSM8926 | ? | ? |
| RAM | ? | 1.5 GB | ? | ? |
| Storage | ? raw hardware | 8 GB | ? raw hardware | ? raw hardware |
| Main Camera | 3 megapixel | 8 megapixel | 1 megapixel | 2 megapixel |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | ? | 1080p HD | ? | QVGA (320 x 240) |
| Front Camera | - | 1 megapixel | - | - |
| Weight |
4.4 oz (125g) |
4.97 oz (141g) |
3.26 oz (92g) |
4.86 oz (138g) |
| Dimensions |
3.8" x 1.88" x 0.82" (97 x 48 x 20.8 mm) |
5.16" x 2.6" x 0.4" (131 x 66 x 10.2 mm) |
3.43" x 1.77" x 0.79" (87 x 45 x 20.1 mm) |
4.48" x 2.28" x 0.56" (114 x 58 x 14.2 mm) |
| Form Factor | Clamshell | Slab | Clamshell | Slide |
| Platform / OS | (proprietary) | Android | (proprietary) | (proprietary) |
| Network Bands |
CDMA: 850, 1900 |
4G LTE: 25, 26, 41 CDMA: 800, 850, 1900 |
GSM: 850, 900, 1800, 1900 |
WCDMA: 2, 5 GSM: 850, 900, 1800, 1900 |
| Data Technology | EVDO r0 | LTE (Cat 4) | GPRS | ? |
| Features | ||||
| Flashlight | Yes | - | - | - |
| GPS / Location | Yes | n/a | - | Yes |
| Accessibility | ||||
| Adjustable Text Size | - | n/a | - | Yes |
| Hearing Aid Compatible |
Yes M3 (mostly compatible) |
Yes M4, T4 (very tele-coil compatible) |
- |
Yes M3, T4 (very tele-coil compatible) |
| Multiple Languages | Yes | n/a | Yes | Yes |
| TTY/TDD (Digital) | Yes | Yes | Yes | Yes |
| Alerts | ||||
| Extra Display | Yes | - | Yes | - |
| Ringer Profiles | - | - | Yes | Yes |
| Connectivity | ||||
| Bluetooth | Yes | Yes | Yes | Yes |
| Mobile Hotspot | - | n/a | - | - |
| USB | Yes |
Yes Micro-USB |
Yes | Yes |
| Wi-Fi | - |
Yes 4 (802.11 b,g,n) |
- | - |
| Contacts | ||||
| Picture ID | Yes | n/a | Yes | Yes |
| Ringer ID | Yes | n/a | Yes | Yes |
| Voice Dialing | Yes | n/a | Yes | Yes |
| Customization | ||||
| Custom Graphics | Yes | n/a | Yes | Yes |
| Custom Ringtones | Yes | n/a | Yes | Yes |
| Real-Music Ringers | Yes | n/a | Yes | Yes |
| Data & Network | ||||
| Data Tethering | Yes | n/a | Yes | Yes |
| WAP / Web Browser | Yes | n/a | Yes | Yes |
| Input | ||||
| Predictive Text Entry | Yes | n/a | Yes | Yes |
| Side Keys | Yes | Yes | Yes | Yes |
| Text Keyboard, Hardware | - | - | - | Yes |
| Touch Screen | - |
Yes Capacitive |
- | Yes |
| Memory | ||||
| Memory Card Slot | Yes | Yes | Yes | Yes |
| Messaging | ||||
| Email Client | - | n/a | Yes | Yes |
| EMS / Picture Messaging | Yes | n/a | - | - |
| Instant Messaging | - | n/a | - | Yes |
| MMS | Yes | n/a | Yes | Yes |
| Text Messaging Templates | Yes | n/a | Yes | Yes |
| Music | ||||
| FM Radio | - | - | Yes | - |
| Headphone Jack (3.5mm) | - | Yes | - | - |
| Music Player | Yes | n/a | Yes | Yes |
| Stereo Speakers | Yes | - | - | - |
| Photo & Video | ||||
| Miracast | - | Yes | - | - |
| TV Output | Yes | - | - | - |
| Productivity | ||||
| Alarm | Yes | n/a | Yes | Yes |
| Calculator | Yes | n/a | Yes | Yes |
| Calendar | Yes | n/a | Yes | Yes |
| To-Do List | - | n/a | Yes | - |
| Voice Memo | Yes | n/a | Yes | Yes |
| Software | ||||
| BREW | Yes | n/a | - | - |
| Games | Yes | n/a | Yes | Yes |
| Java (J2ME) | - | n/a | Yes | Yes |
| Voice | ||||
| HD Voice | - | Yes | - | - |
| Push-To-Talk | - | - | Yes * | - |
| Speaker Phone | Yes | Yes | Yes | Yes |
| * Some versions only | ||||
| Samsung SCH-A990 | Sharp Aquos Crystal | Sony Ericsson Z550a | Pantech Ease | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SCH-A990 | Sharp Aquos Crystal | Sony Ericsson Z550a | Pantech Ease |
