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| Phone | BlackBerry 7750 | Ericsson R278d | Samsung SPH-N400 |
| Current U.S. Carriers | (none) | (none) | (none) |
| Global Availability | Released | Released | Released |
| Specifications | |||
|---|---|---|---|
| Display Size | ? | ? | ? |
| Display Resolution & Type |
240 x 240 pixels LCD (Color) |
101 x 40 pixels |
128 x 128 pixels LCD (STN) |
| Display Refresh | ? | ? | ? |
| Battery | ? | ? | ? |
| Processor | ? | ? | ? |
| RAM | ? | ? | ? |
| Storage | ? raw hardware | ? raw hardware | ? raw hardware |
| Main Camera | - | - | - |
| Wide Camera | - | - | - |
| Tele Camera | - | - | - |
| Video Capture | - | - | - |
| Front Camera | - | - | - |
| Weight |
5.01 oz (142g) |
9.28 oz (263g) |
4 oz (113g) |
| Dimensions |
4.76" x 3.03" x 0.71" (121 x 77 x 18 mm) |
5.1" x 2" x 1" (130 x 51 x 25.4 mm) |
4.25" x 2.04" x 0.82" (108 x 52 x 20.8 mm) |
| Form Factor | Slab | Slab | Flip |
| Platform / OS | BlackBerry OS | (proprietary) | (proprietary) |
| Network Bands |
CDMA: 850, 1900 |
TDMA: 850, 1900 AMPS: 850 |
CDMA: 850, 1900 AMPS: 850 |
| Data Technology | 1xRTT | - | 1xRTT |
| Features | |||
| GPS / Location | n/a | - | Yes |
| Accessibility | |||
| Multiple Languages | n/a | Yes | Yes |
| TTY/TDD (Digital) | Yes | - | Yes |
| Alerts | |||
| Ringer Profiles | Yes | Yes | - |
| Connectivity | |||
| USB | Yes | - | Yes |
| Contacts | |||
| Picture ID | n/a | - | Yes |
| Ringer ID | n/a | - | Yes |
| Voice Dialing | n/a | - | Yes |
| Customization | |||
| Custom Graphics | n/a | - | Yes |
| Custom Ringtones | n/a | Yes | Yes |
| Data & Network | |||
| Data Tethering | n/a | Yes | Yes |
| WAP / Web Browser | n/a | Yes | Yes |
| Input | |||
| Predictive Text Entry | n/a | Yes | Yes |
| Side Keys | Yes | Yes | Yes |
| Text Keyboard, Hardware | Yes | - | - |
| Messaging | |||
| Email Client | n/a | - | - |
| Productivity | |||
| Alarm | n/a | Yes | Yes |
| Calculator | n/a | - | Yes |
| Calendar | n/a | - | Yes |
| To-Do List | n/a | - | Yes |
| Software | |||
| Games | n/a | - | Yes |
| Java (J2ME) | n/a | - | Yes |
| Voice | |||
| Headset Jack (2.5 mm) | n/a | - | Yes |
| Speaker Phone | - | - | Yes |
| BlackBerry 7750 | Ericsson R278d | Samsung SPH-N400 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | BlackBerry 7750 | Ericsson R278d | Samsung SPH-N400 |
