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| Phone | Samsung SCH-A990 | Ericsson R278d | BlackBerry 7750 | HTC Desire 520 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size | ? | ? | ? |
4.5" diag. 16 : 9 |
| Display Resolution & Type |
240 x 320 pixels LCD (TFT/TFD) |
101 x 40 pixels |
240 x 240 pixels LCD (Color) |
480 x 854 pixels (~218 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | ? | ? | 60 Hz |
| Battery | 1,000 mAh | ? | ? | 2,000 mAh |
| Processor | ? | ? | ? | 1.1 GHz Qualcomm Snapdragon 210 (MSM8909) |
| RAM | ? | ? | ? | 1 GB |
| Storage | ? raw hardware | ? raw hardware | ? raw hardware | 8 GB |
| Main Camera | 3 megapixel | - | - | 8 megapixel |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | ? | - | - | 720p HD |
| Front Camera | - | - | - | 2 megapixel |
| Weight |
4.4 oz (125g) |
9.28 oz (263g) |
5.01 oz (142g) |
4.9 oz (139g) |
| Dimensions |
3.8" x 1.88" x 0.82" (97 x 48 x 20.8 mm) |
5.1" x 2" x 1" (130 x 51 x 25.4 mm) |
4.76" x 3.03" x 0.71" (121 x 77 x 18 mm) |
5.5" x 2.71" x 0.36" (140 x 69 x 9 mm) |
| Form Factor | Clamshell | Slab | Slab | Slab |
| Platform / OS | (proprietary) | (proprietary) | BlackBerry OS | Android |
| Network Bands |
CDMA: 850, 1900 |
TDMA: 850, 1900 AMPS: 850 |
CDMA: 850, 1900 |
4G LTE: 2, 4, 5, 17 WCDMA: 1, 2, 5 GSM: 850, 900, 1800, 1900 |
| Data Technology | EVDO r0 | - | 1xRTT | LTE (Cat 3) |
| Features | ||||
| Flashlight | Yes | - | - | - |
| GPS / Location | Yes | - | n/a | n/a |
| Accessibility | ||||
| Adjustable Text Size | - | - | n/a | n/a |
| Hearing Aid Compatible |
Yes M3 (mostly compatible) |
- | - |
Yes M4, T3 (mostly tele-coil compatible) |
| Multiple Languages | Yes | Yes | n/a | n/a |
| TTY/TDD (Digital) | Yes | - | Yes | Yes |
| Alerts | ||||
| Extra Display | Yes | - | - | - |
| Ringer Profiles | - | Yes | Yes | - |
| Connectivity | ||||
| Bluetooth | Yes | - | - | Yes |
| Mobile Hotspot | - | - | n/a | n/a |
| USB | Yes | - | Yes |
Yes Micro-USB |
| Wi-Fi | - | - | - |
Yes 4 (802.11 b,g,n) |
| Contacts | ||||
| Picture ID | Yes | - | n/a | n/a |
| Ringer ID | Yes | - | n/a | n/a |
| Voice Dialing | Yes | - | n/a | n/a |
| Customization | ||||
| Custom Graphics | Yes | - | n/a | n/a |
| Custom Ringtones | Yes | Yes | n/a | n/a |
| Real-Music Ringers | Yes | - | n/a | n/a |
| Data & Network | ||||
| Data Tethering | Yes | Yes | n/a | n/a |
| WAP / Web Browser | Yes | Yes | n/a | n/a |
| Input | ||||
| Predictive Text Entry | Yes | Yes | n/a | n/a |
| Side Keys | Yes | Yes | Yes | Yes |
| Text Keyboard, Hardware | - | - | Yes | - |
| Touch Screen | - | - | - |
Yes Capacitive |
| Memory | ||||
| Memory Card Slot | Yes | - | - | Yes |
| Messaging | ||||
| Email Client | - | - | n/a | n/a |
| EMS / Picture Messaging | Yes | - | n/a | n/a |
| Instant Messaging | - | - | n/a | n/a |
| MMS | Yes | - | n/a | n/a |
| Text Messaging Templates | Yes | - | n/a | n/a |
| Music | ||||
| FM Radio | - | - | - | Yes |
| Headphone Jack (3.5mm) | - | - | - | Yes |
| Music Player | Yes | - | n/a | n/a |
| Stereo Speakers | Yes | - | - | - |
| Photo & Video | ||||
| DLNA | - | - | - | Yes |
| TV Output | Yes | - | - | - |
| Productivity | ||||
| Alarm | Yes | Yes | n/a | n/a |
| Calculator | Yes | - | n/a | n/a |
| Calendar | Yes | - | n/a | n/a |
| To-Do List | - | - | n/a | n/a |
| Voice Memo | Yes | - | n/a | n/a |
| Software | ||||
| BREW | Yes | - | n/a | n/a |
| Games | Yes | - | n/a | n/a |
| Java (J2ME) | - | - | n/a | n/a |
| Voice | ||||
| Headset Jack (2.5 mm) | - | - | n/a | n/a |
| Speaker Phone | Yes | - | - | Yes |
| Samsung SCH-A990 | Ericsson R278d | BlackBerry 7750 | HTC Desire 520 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Samsung SCH-A990 | Ericsson R278d | BlackBerry 7750 | HTC Desire 520 |
