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| Phone | Nokia Lumia 521 / 520 | HTC SDA (USA) / SP5m (Tornado) | Sharp Sidekick LX 2009 |
| Current U.S. Carriers | (none) | (none) | (none) |
| Global Availability | Released | Released | Released |
| Specifications | |||
|---|---|---|---|
| Display Size |
4" diag. 5 : 3 |
2.2" diag. 4 : 3 |
3.2" diag. 16 : 9 |
| Display Resolution & Type |
480 x 800 pixels (~233 ppi) LCD (TFT/TFD) |
240 x 320 pixels (~182 ppi) LCD (TFT/TFD) |
854 x 480 pixels (~306 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | ? | ? |
| Battery | 1,430 mAh | ? | 1,250 mAh |
| Processor | 1 GHz Qualcomm Snapdragon S4 MSM8270 | ? | ? |
| RAM | 512 MB | ? | ? |
| Storage | 8 GB | ? raw hardware | ? raw hardware |
| Main Camera | 5 megapixel | 1 megapixel | 3 megapixel |
| Wide Camera | - | - | - |
| Tele Camera | - | - | - |
| Video Capture | 720p HD | QCIF (176 x 144) | QVGA (320 x 240) |
| Front Camera | - | - | - |
| Weight |
4.39 oz (124g) |
3.74 oz (106g) |
5.78 oz (164g) |
| Dimensions |
4.72" x 2.52" x 0.39" (120 x 64 x 9.9 mm) |
4.53" x 1.82" x 0.69" (115 x 46 x 17.5 mm) |
5.12" x 2.36" x 0.63" (130 x 60 x 16 mm) |
| Form Factor | Slab | Slab | Swivel |
| Platform / OS | Windows | Windows Mobile Standard | (proprietary) |
| Network Bands |
GSM: 850, 900, 1800, 1900 |
WCDMA: 1, 4 GSM: 850, 900, 1800, 1900 |
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| Data Technology | HSPA+ 21 | EDGE | HSPA 7.2 |
| Features | |||
| GPS / Location | n/a | n/a | Yes |
| Accessibility | |||
| Adjustable Text Size | n/a | n/a | Yes |
| Hearing Aid Compatible |
Yes M3, T4 (very tele-coil compatible) |
- |
Yes M3 (mostly compatible) |
| Multiple Languages | n/a | n/a | Yes |
| TTY/TDD (Digital) | Yes | Yes | - |
| Alerts | |||
| Ringer Profiles | - | Yes | Yes |
| Connectivity | |||
| Bluetooth | Yes | Yes | Yes |
| Infrared (IR) | - | Yes | - |
| Mobile Hotspot | n/a | n/a | - |
| USB | Yes |
Yes Mini-USB |
Yes |
| Wi-Fi | Yes | Yes | - |
| Contacts | |||
| Picture ID | n/a | n/a | Yes |
| Ringer ID | n/a | n/a | Yes |
| Voice Dialing | n/a | n/a | - |
| Customization | |||
| Custom Graphics | n/a | n/a | Yes |
| Custom Ringtones | n/a | n/a | Yes |
| Real-Music Ringers | n/a | n/a | Yes |
| Data & Network | |||
| Data Tethering | n/a | n/a | - |
| External Antenna Jack | n/a | n/a | - |
| WAP / Web Browser | n/a | n/a | Yes |
| Input | |||
| Predictive Text Entry | n/a | n/a | - |
| Side Keys | Yes | Yes | Yes |
| Text Keyboard, Hardware | - | - | Yes |
| Touch Screen |
Yes Capacitive |
- | - |
| Memory | |||
| Memory Card Slot | Yes | Yes | Yes |
| Messaging | |||
| Email Client | n/a | n/a | Yes |
| Instant Messaging | n/a | n/a | Yes |
| MMS | n/a | n/a | Yes |
| Text Messaging Templates | n/a | n/a | Yes |
| Music | |||
| Headphone Jack (3.5mm) | Yes | - | Yes |
| Music Player | n/a | n/a | Yes |
| Productivity | |||
| Alarm | n/a | n/a | Yes |
| Calculator | n/a | n/a | - |
| Calendar | n/a | n/a | Yes |
| To-Do List | n/a | n/a | Yes |
| Voice Memo | n/a | n/a | - |
| Software | |||
| Games | n/a | n/a | Yes |
| Java (J2ME) | n/a | n/a | Yes |
| Voice | |||
| Headset Jack (2.5 mm) | n/a | n/a | - |
| Speaker Phone | Yes | Yes | Yes |
| * Some versions only | |||
| Nokia Lumia 521 / 520 | HTC SDA (USA) / SP5m (Tornado) | Sharp Sidekick LX 2009 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Nokia Lumia 521 / 520 | HTC SDA (USA) / SP5m (Tornado) | Sharp Sidekick LX 2009 |
