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| Phone | Ericsson R520 | Nokia E66 | Casio G'zOne Boulder | Nokia N900 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size | ? |
2.4" diag. 4 : 3 |
2" diag. 4 : 3 |
3.5" diag. 5 : 3 |
| Display Resolution & Type | ? |
240 x 320 pixels (~167 ppi) LCD (TFT/TFD) |
240 x 320 pixels (~200 ppi) LCD (TFT/TFD) |
800 x 480 pixels (~267 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | ? | ? | ? |
| Battery | ? | 1,000 mAh | 810 mAh | 1,320 mAh |
| Processor | ? | ? | ? | 600 MHz TI OMAP 3430 (ARM Cortex-A8) |
| RAM | ? | ? | ? | ? |
| Storage | ? raw hardware | ? raw hardware | ? raw hardware | ? raw hardware |
| Main Camera | - | 3 megapixel | 1 megapixel | 5 megapixel |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | - | QVGA (320 x 240) | ? | ? |
| Front Camera | - | - | - | - |
| Weight |
4.23 oz (120g) |
4.27 oz (121g) |
4.9 oz (139g) |
6.38 oz (181g) |
| Dimensions |
5.12" x 1.97" x 0.63" (130 x 50 x 16 mm) |
4.21" x 1.93" x 0.51" (107 x 49 x 13 mm) |
3.9" x 2" x 0.9" (99 x 51 x 22.9 mm) |
4.36" x 2.35" x 0.69" (111 x 60 x 17.6 mm) |
| Form Factor | Slab | Slide | Clamshell | Slide |
| Platform / OS | (proprietary) | S60 (Symbian) | (proprietary) | (proprietary) |
| Network Bands |
GSM: 900, 1800, 1900 |
CDMA: 850, 1900 |
WCDMA: 1, 4, 8 GSM: 850, 900, 1800, 1900 |
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| Data Technology | GPRS | HSDPA 3.6 | EVDO rA | HSPA 10.1 |
| Features | ||||
| Flashlight | - | - | Yes | - |
| GPS / Location | - | n/a | Yes | Yes |
| Ruggedized | - | - | Yes | - |
| Water-Resistant | - | - | Yes | - |
| Accessibility | ||||
| Hearing Aid Compatible | - | - | Yes | Yes |
| Multiple Languages | Yes | n/a | Yes | Yes |
| TTY/TDD (Digital) | - | - | Yes | - |
| Alerts | ||||
| Extra Display | - | - | Yes | - |
| Ringer Profiles | Yes | Yes | - | - |
| Connectivity | ||||
| Bluetooth |
Yes HSP, Sync, OPP, DUN |
Yes Classic Audio |
Yes Classic Audio |
Yes Classic Audio |
| Infrared (IR) | Yes | Yes | - | - |
| USB | - |
Yes Micro-USB |
Yes |
Yes Micro-USB |
| Wi-Fi | - |
Yes 802.11 b,g |
- |
Yes 802.11 b,g |
| Contacts | ||||
| Picture ID | - | n/a | Yes | Yes |
| Ringer ID | - | n/a | Yes | - |
| Voice Dialing | Yes | n/a | Yes | - |
| Customization | ||||
| Changeable Body Plates | - | - | Yes | - |
| Custom Graphics | - | n/a | Yes | Yes |
| Custom Ringtones | Yes | n/a | Yes | Yes |
| Real-Music Ringers | - | n/a | - | Yes |
| Data & Network | ||||
| Data Tethering | Yes | n/a | Yes | - |
| WAP / Web Browser | Yes | n/a | Yes | Yes |
| Input | ||||
| Predictive Text Entry | Yes | n/a | Yes | - |
| Side Keys | Yes | Yes | Yes | Yes |
| Stylus | - | - | - | Yes |
| Text Keyboard, Hardware | - | - | - | Yes |
| Touch Screen | - | - | - | Yes |
| Memory | ||||
| Memory Card Slot | - | Yes | Yes | Yes |
| Messaging | ||||
| Email Client | - | n/a | - | Yes |
| EMS / Picture Messaging | - | n/a | Yes | - |
| Instant Messaging | - | n/a | - | Yes |
| MMS | - | n/a | Yes | - |
| Text Messaging Templates | Yes | n/a | Yes | - |
| Music | ||||
| FM Radio | - | Yes | - | - |
| FM Transmitter | - | n/a | - | Yes |
| Headphone Jack (3.5mm) | - | - | - | Yes |
| Music Player | - | n/a | Yes | Yes |
| Stereo Speakers | - | - | - | Yes |
| Photo & Video | ||||
| DLNA | - | - | - | Yes |
| TV Output | - | - | - | Yes |
| Video Calling | - | n/a | - | Yes * |
| Productivity | ||||
| Alarm | Yes | n/a | Yes | Yes |
| Calculator | Yes | n/a | Yes | Yes |
| Calendar | Yes | n/a | Yes | Yes |
| To-Do List | - | n/a | - | - |
| Voice Memo | Yes | n/a | Yes | - |
| Software | ||||
| BREW | - | n/a | Yes | - |
| Games | Yes | n/a | Yes | Yes |
| Java (J2ME) | - | n/a | - | - |
| Voice | ||||
| Headset Jack (2.5 mm) | - | n/a | - | - |
| Push-To-Talk | - | - | Yes | - |
| Speaker Phone | Yes | Yes | Yes | Yes |
| * Some versions only | ||||
| Ericsson R520 | Nokia E66 | Casio G'zOne Boulder | Nokia N900 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Ericsson R520 | Nokia E66 | Casio G'zOne Boulder | Nokia N900 |
