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| Phone | Sony Ericsson Z550a | Motorola ROKR E2 | Motorola Droid Ultra |
| Current U.S. Carriers | (none) | (none) | (none) |
| Global Availability | Released | Released | Released |
| Specifications | |||
|---|---|---|---|
| Display Size |
1.9" diag. 4 : 3 |
? |
5" diag. 16 : 9 |
| Display Resolution & Type |
176 x 220 pixels (~148 ppi) LCD (TFT/TFD) |
240 x 320 pixels LCD (TFT/TFD) |
720 x 1280 pixels (~294 ppi) AMOLED |
| Display Refresh | ? | ? | 60 Hz |
| Battery | ? | ? | 2,130 mAh |
| Processor | ? | ? | 1.7 GHz Qualcomm Snapdragon S4 Pro MSM8960T |
| RAM | ? | ? | 2 GB |
| Storage | ? raw hardware | ? raw hardware | 16 GB |
| Main Camera | 1 megapixel | 1 megapixel | 10 megapixel |
| Wide Camera | - | - | - |
| Tele Camera | - | - | - |
| Video Capture | ? | ? | 1080p HD |
| Front Camera | - | - | 2 megapixel |
| Weight |
3.26 oz (92g) |
3.77 oz (107g) |
4.83 oz (137g) |
| Dimensions |
3.43" x 1.77" x 0.79" (87 x 45 x 20.1 mm) |
4.17" x 1.95" x 0.71" (106 x 50 x 18 mm) |
5.41" x 2.8" x 0.28" (137 x 71 x 7.2 mm) |
| Form Factor | Clamshell | Slab | Slab |
| Platform / OS | (proprietary) | (proprietary) | Android |
| Network Bands |
GSM: 850, 900, 1800, 1900 |
GSM: 900, 1800, 1900 |
4G LTE: 4, 13 WCDMA: 1, 2, 5, 8 CDMA: 850, 1900 GSM: 850, 900, 1800, 1900 |
| Data Technology | GPRS | EDGE | LTE (Cat 3) |
| Features | |||
| GPS / Location | - | - | n/a |
| Accessibility | |||
| Adjustable Text Size | - | - | n/a |
| Hearing Aid Compatible | - | - |
Yes M3, T4 (very tele-coil compatible) |
| Multiple Languages | Yes | Yes | n/a |
| TTY/TDD (Digital) | Yes | - | Yes |
| Alerts | |||
| Extra Display | Yes | - | - |
| Ringer Profiles | Yes | Yes | - |
| Connectivity | |||
| Bluetooth | Yes | Yes | Yes |
| Mobile Hotspot | - | - | n/a |
| NFC | - | - | Yes |
| USB | Yes | Yes |
Yes Micro-USB |
| Wi-Fi | - | - |
Yes 4 (802.11 a,b,g,n) |
| Contacts | |||
| Picture ID | Yes | Yes | n/a |
| Ringer ID | Yes | Yes | n/a |
| Voice Dialing | Yes | Yes | n/a |
| Customization | |||
| Custom Graphics | Yes | Yes | n/a |
| Custom Ringtones | Yes | Yes | n/a |
| Real-Music Ringers | Yes | - | n/a |
| Data & Network | |||
| Data Tethering | Yes | Yes | n/a |
| WAP / Web Browser | Yes | Yes | n/a |
| Input | |||
| Predictive Text Entry | Yes | Yes | n/a |
| Side Keys | Yes | Yes | Yes |
| Touch Screen | - | - |
Yes Capacitive |
| Memory | |||
| Memory Card Slot | Yes | Yes | - |
| Messaging | |||
| Email Client | Yes | Yes | n/a |
| Instant Messaging | - | - | n/a |
| MMS | Yes | Yes | n/a |
| Text Messaging Templates | Yes | Yes | n/a |
| Music | |||
| FM Radio | Yes | Yes | - |
| Headphone Jack (3.5mm) | - | Yes | Yes |
| Music Player | Yes | Yes | n/a |
| Photo & Video | |||
| Miracast | - | - | Yes |
| Productivity | |||
| Alarm | Yes | Yes | n/a |
| Calculator | Yes | Yes | n/a |
| Calendar | Yes | Yes | n/a |
| To-Do List | Yes | Yes | n/a |
| Voice Memo | Yes | Yes | n/a |
| Software | |||
| Games | Yes | Yes | n/a |
| Java (J2ME) | Yes | Yes | n/a |
| Voice | |||
| Push-To-Talk | Yes * | - | - |
| Speaker Phone | Yes | Yes | Yes |
| * Some versions only | |||
| Sony Ericsson Z550a | Motorola ROKR E2 | Motorola Droid Ultra | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Sony Ericsson Z550a | Motorola ROKR E2 | Motorola Droid Ultra |
