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| Phone | Ericsson R278d | Motorola i425 | Sony Ericsson Z550a |
| Current U.S. Carriers | (none) | (none) | (none) |
| Global Availability | Released | Released | Released |
| Specifications | |||
|---|---|---|---|
| Display Size | ? | ? |
1.9" diag. 4 : 3 |
| Display Resolution & Type | 101 x 40 pixels |
130 x 130 pixels LCD (STN) |
176 x 220 pixels (~148 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | ? | ? |
| Battery | ? | ? | ? |
| Processor | ? | ? | ? |
| RAM | ? | ? | ? |
| Storage | ? raw hardware | ? raw hardware | ? raw hardware |
| Main Camera | - | - | 1 megapixel |
| Wide Camera | - | - | - |
| Tele Camera | - | - | - |
| Video Capture | - | - | ? |
| Front Camera | - | - | - |
| Weight |
9.28 oz (263g) |
3.9 oz (111g) |
3.26 oz (92g) |
| Dimensions |
5.1" x 2" x 1" (130 x 51 x 25.4 mm) |
4.9" x 1.9" x 0.47" (124 x 48 x 11.9 mm) |
3.43" x 1.77" x 0.79" (87 x 45 x 20.1 mm) |
| Form Factor | Slab | Slab | Clamshell |
| Platform / OS | (proprietary) | (proprietary) | (proprietary) |
| Network Bands |
TDMA: 850, 1900 AMPS: 850 |
iDEN: 800 |
GSM: 850, 900, 1800, 1900 |
| Data Technology | - | - | GPRS |
| Features | |||
| GPS / Location | - | Yes | - |
| Accessibility | |||
| Adjustable Text Size | - | Yes | - |
| Multiple Languages | Yes | Yes | Yes |
| TTY/TDD (Digital) | - | Yes | Yes |
| Alerts | |||
| Extra Display | - | - | Yes |
| Ringer Profiles | Yes | Yes | Yes |
| Connectivity | |||
| Bluetooth | - | - | Yes |
| USB | - |
Yes Mini-USB |
Yes |
| Contacts | |||
| Picture ID | - | Yes | Yes |
| Ringer ID | - | Yes | Yes |
| Voice Dialing | - | Yes | Yes |
| Customization | |||
| Custom Graphics | - | Yes | Yes |
| Custom Ringtones | Yes | Yes | Yes |
| Real-Music Ringers | - | Yes | Yes |
| Data & Network | |||
| Data Tethering | Yes | Yes | Yes |
| WAP / Web Browser | Yes | Yes | Yes |
| Input | |||
| Predictive Text Entry | Yes | Yes | Yes |
| Side Keys | Yes | Yes | Yes |
| Memory | |||
| Memory Card Slot | - | - | Yes |
| Messaging | |||
| Email Client | - | - | Yes |
| MMS | - | Yes | Yes |
| Text Messaging Templates | - | Yes | Yes |
| Music | |||
| FM Radio | - | - | Yes |
| Music Player | - | - | Yes |
| Productivity | |||
| Alarm | Yes | - | Yes |
| Calculator | - | - | Yes |
| Calendar | - | Yes | Yes |
| To-Do List | - | - | Yes |
| Voice Memo | - | Yes | Yes |
| Software | |||
| Games | - | Yes | Yes |
| Java (J2ME) | - | Yes | Yes |
| Voice | |||
| Headset Jack (2.5 mm) | - | Yes | - |
| Push-To-Talk | - | Yes | Yes * |
| Speaker Phone | - | Yes | Yes |
| * Some versions only | |||
| Ericsson R278d | Motorola i425 | Sony Ericsson Z550a | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Ericsson R278d | Motorola i425 | Sony Ericsson Z550a |
