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| Phone | Ericsson R278d | Samsung Sidekick 4G | Samsung Trance SCH-U490 |
| Current U.S. Carriers | (none) | (none) | (none) |
| Global Availability | Released | Released | Released |
| Specifications | |||
|---|---|---|---|
| Display Size | ? |
3.5" diag. 5 : 3 |
2.1" diag. 4 : 3 |
| Display Resolution & Type | 101 x 40 pixels |
480 x 800 pixels (~267 ppi) LCD (TFT/TFD) |
176 x 220 pixels (~134 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | 60 Hz | ? |
| Battery | ? | ? | ? |
| Processor | ? | 1 GHz Samsung Hummingbird Cortex A8 | ? |
| RAM | ? | ? | ? |
| Storage | ? raw hardware | ? raw hardware | ? raw hardware |
| Main Camera | - | 3 megapixel | 1 megapixel |
| Wide Camera | - | - | - |
| Tele Camera | - | - | - |
| Video Capture | - | WVGA / 480p | - |
| Front Camera | - | Yes | - |
| Weight |
9.28 oz (263g) |
5.7 oz (162g) |
3.53 oz (100g) |
| Dimensions |
5.1" x 2" x 1" (130 x 51 x 25.4 mm) |
5" x 2.42" x 0.6" (127 x 61 x 15.2 mm) |
4" x 1.97" x 0.55" (102 x 50 x 14 mm) |
| Form Factor | Slab | Slide | Slide |
| Platform / OS | (proprietary) | Android | (proprietary) |
| Network Bands |
TDMA: 850, 1900 AMPS: 850 |
WCDMA: 1, 4 GSM: 850, 900, 1800, 1900 |
CDMA: 850, 1900 |
| Data Technology | - | HSPA+ 21 | 1xRTT |
| Features | |||
| GPS / Location | - | n/a | Yes |
| Accessibility | |||
| Adjustable Text Size | - | n/a | Yes |
| Hearing Aid Compatible | - |
Yes M3, T3 (mostly tele-coil compatible) |
Yes M4, T3 (mostly tele-coil compatible) |
| Multiple Languages | Yes | n/a | Yes |
| TTY/TDD (Digital) | - | Yes | Yes |
| Alerts | |||
| Ringer Profiles | Yes | - | - |
| Connectivity | |||
| Bluetooth | - | Yes | Yes |
| Mobile Hotspot | - | n/a | - |
| USB | - |
Yes Micro-USB |
Yes |
| Wi-Fi | - |
Yes 4 (802.11 b,g,n) |
- |
| Contacts | |||
| Picture ID | - | n/a | Yes |
| Ringer ID | - | n/a | Yes |
| Voice Dialing | - | n/a | Yes |
| Customization | |||
| Custom Graphics | - | n/a | Yes |
| Custom Ringtones | Yes | n/a | Yes |
| Real-Music Ringers | - | n/a | Yes |
| Data & Network | |||
| Data Tethering | Yes | n/a | Yes |
| WAP / Web Browser | Yes | n/a | Yes |
| Input | |||
| Predictive Text Entry | Yes | n/a | Yes |
| Side Keys | Yes | Yes | Yes |
| Text Keyboard, Hardware | - | Yes | - |
| Touch Screen | - | Yes | - |
| Memory | |||
| Memory Card Slot | - | Yes | Yes |
| Messaging | |||
| Email Client | - | n/a | - |
| Instant Messaging | - | n/a | - |
| MMS | - | n/a | Yes |
| Text Messaging Templates | - | n/a | Yes |
| Music | |||
| Headphone Jack (3.5mm) | - | Yes | Yes |
| Music Player | - | n/a | Yes |
| Photo & Video | |||
| DLNA | - | Yes | - |
| Productivity | |||
| Alarm | Yes | n/a | Yes |
| Calculator | - | n/a | Yes |
| Calendar | - | n/a | Yes |
| Voice Memo | - | n/a | Yes |
| Software | |||
| BREW | - | n/a | Yes |
| Games | - | n/a | Yes |
| Voice | |||
| Speaker Phone | - | Yes | Yes |
| Ericsson R278d | Samsung Sidekick 4G | Samsung Trance SCH-U490 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Ericsson R278d | Samsung Sidekick 4G | Samsung Trance SCH-U490 |
