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| Phone | Ericsson R520 | Samsung Jitterbug J / SPH-A310 | Samsung SGH-D307 |
| Current U.S. Carriers | (none) | (none) | (none) |
| Global Availability | Released | Released | Released |
| Specifications | |||
|---|---|---|---|
| Display Size | ? |
2.1" diag. 4 : 3 |
? |
| Display Resolution & Type | ? |
176 x 220 pixels (~134 ppi) LCD (Color) |
176 x 220 pixels LCD (TFT/TFD) |
| Display Refresh | ? | ? | ? |
| Battery | ? | ? | ? |
| Processor | ? | ? | ? |
| RAM | ? | ? | ? |
| Storage | ? raw hardware | ? raw hardware | ? raw hardware |
| Main Camera | - | - | - |
| Wide Camera | - | - | - |
| Tele Camera | - | - | - |
| Video Capture | - | - | - |
| Front Camera | - | - | - |
| Weight |
4.23 oz (120g) |
3.99 oz (113g) |
4.3 oz (122g) |
| Dimensions |
5.12" x 1.97" x 0.63" (130 x 50 x 16 mm) |
3.87" x 2.16" x 0.97" (98 x 55 x 24.6 mm) |
3.7" x 1.9" x 0.85" (94 x 48 x 21.6 mm) |
| Form Factor | Slab | Clamshell | Clamshell |
| Platform / OS | (proprietary) | (proprietary) | (proprietary) |
| Network Bands |
GSM: 900, 1800, 1900 |
CDMA: 850, 1900 |
GSM: 850, 1800, 1900 |
| Data Technology | GPRS | - | EDGE |
| Features | |||
| GPS / Location | - | Yes | - |
| Accessibility | |||
| Hearing Aid Compatible | - |
Yes M4, T4 (very tele-coil compatible) |
Yes M4 (very compatible) |
| Multiple Languages | Yes | - | Yes |
| TTY/TDD (Digital) | - | - | Yes |
| Alerts | |||
| Extra Display | - | Yes | Yes |
| Ringer Profiles | Yes | - | - |
| Connectivity | |||
| Bluetooth | Yes | Yes | Yes |
| Infrared (IR) | Yes | - | - |
| USB | - | - | Yes |
| Contacts | |||
| Picture ID | - | - | Yes |
| Ringer ID | - | - | Yes |
| Voice Dialing | Yes | Yes | Yes |
| Customization | |||
| Custom Graphics | - | - | Yes |
| Custom Ringtones | Yes | - | Yes |
| Real-Music Ringers | - | - | Yes |
| Data & Network | |||
| Data Tethering | Yes | - | Yes |
| WAP / Web Browser | Yes | - | Yes |
| Input | |||
| Predictive Text Entry | Yes | - | Yes |
| Side Keys | Yes | Yes | Yes |
| Text Keyboard, Hardware | - | - | Yes |
| Messaging | |||
| Email Client | - | - | Yes |
| EMS / Picture Messaging | - | - | Yes |
| MMS | - | - | Yes |
| Text Messaging Templates | Yes | Yes | Yes |
| Productivity | |||
| Alarm | Yes | - | Yes |
| Calculator | Yes | - | Yes |
| Calendar | Yes | - | Yes |
| To-Do List | - | - | Yes |
| Voice Memo | Yes | - | Yes |
| Software | |||
| Games | Yes | - | Yes |
| Java (J2ME) | - | - | Yes |
| Voice | |||
| Speaker Phone | Yes | Yes | Yes |
| Ericsson R520 | Samsung Jitterbug J / SPH-A310 | Samsung SGH-D307 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Ericsson R520 | Samsung Jitterbug J / SPH-A310 | Samsung SGH-D307 |
