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| Phone | Sony Ericsson Z550a | Ericsson R278d | Huawei Ascend Q |
| Current U.S. Carriers | (none) | (none) | (none) |
| Global Availability | Released | Released | Released |
| Specifications | |||
|---|---|---|---|
| Display Size |
1.9" diag. 4 : 3 |
? |
3.2" diag. 5 : 3 |
| Display Resolution & Type |
176 x 220 pixels (~148 ppi) LCD (TFT/TFD) |
101 x 40 pixels |
320 x 480 pixels (~180 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | ? | 60 Hz |
| Battery | ? | ? | 1,500 mAh |
| Processor | ? | ? | 800 MHz Qualcomm MSM7627A |
| RAM | ? | ? | 512 MB |
| Storage | ? raw hardware | ? raw hardware | 2 GB |
| Main Camera | 1 megapixel | - | 3 megapixel |
| Wide Camera | - | - | - |
| Tele Camera | - | - | - |
| Video Capture | ? | - | ? |
| Front Camera | - | - | - |
| Weight |
3.26 oz (92g) |
9.28 oz (263g) |
4.6 oz (130g) |
| Dimensions |
3.43" x 1.77" x 0.79" (87 x 45 x 20.1 mm) |
5.1" x 2" x 1" (130 x 51 x 25.4 mm) |
4.8" x 2.3" x 0.5" (122 x 58 x 12.7 mm) |
| Form Factor | Clamshell | Slab | Slab |
| Platform / OS | (proprietary) | (proprietary) | Android |
| Network Bands |
GSM: 850, 900, 1800, 1900 |
TDMA: 850, 1900 AMPS: 850 |
CDMA: 850, 1700, 1900 |
| Data Technology | GPRS | - | EVDO rA |
| Features | |||
| GPS / Location | - | - | n/a |
| Accessibility | |||
| Hearing Aid Compatible | - | - |
Yes M4, 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 |
| Mobile Hotspot | - | - | n/a |
| USB | Yes | - |
Yes Micro-USB |
| Wi-Fi | - | - |
Yes 4 (802.11 b,g,n) |
| Contacts | |||
| Picture ID | Yes | - | n/a |
| Ringer ID | Yes | - | n/a |
| Voice Dialing | Yes | - | n/a |
| Customization | |||
| Custom Graphics | 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 |
| Text Keyboard, Hardware | - | - | Yes |
| Touch Screen | - | - |
Yes Capacitive |
| Memory | |||
| Memory Card Slot | Yes | - | Yes |
| Messaging | |||
| Email Client | Yes | - | n/a |
| Instant Messaging | - | - | n/a |
| MMS | Yes | - | n/a |
| Text Messaging Templates | Yes | - | n/a |
| Music | |||
| FM Radio | Yes | - | - |
| Headphone Jack (3.5mm) | - | - | Yes |
| Music Player | Yes | - | n/a |
| Productivity | |||
| Alarm | Yes | Yes | n/a |
| Calculator | Yes | - | n/a |
| Calendar | Yes | - | n/a |
| To-Do List | Yes | - | n/a |
| Voice Memo | Yes | - | n/a |
| Software | |||
| Games | Yes | - | n/a |
| Java (J2ME) | Yes | - | n/a |
| Voice | |||
| Push-To-Talk | Yes * | - | - |
| Speaker Phone | Yes | - | Yes |
| * Some versions only | |||
| Sony Ericsson Z550a | Ericsson R278d | Huawei Ascend Q | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Sony Ericsson Z550a | Ericsson R278d | Huawei Ascend Q |
