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| Phone | Nokia Lumia 521 / 520 | Siemens A56 / A56i | Palm Pre 2 (GSM) | Samsung SGH-ZX20 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released |
| Specifications | ||||
|---|---|---|---|---|
| Display Size |
4" diag. 5 : 3 |
? |
3.1" diag. 5 : 3 |
? |
| Display Resolution & Type |
480 x 800 pixels (~233 ppi) LCD (TFT/TFD) |
101 x 64 pixels |
320 x 480 pixels (~186 ppi) LCD (TFT/TFD) |
176 x 220 pixels LCD (TFT/TFD) |
| Display Refresh | ? | ? | ? | ? |
| Battery | 1,430 mAh | 700 mAh | 1,150 mAh | ? |
| Processor | 1 GHz Qualcomm Snapdragon S4 MSM8270 | ? | 1 GHz TI 3630 | ? |
| RAM | 512 MB | ? | ? | ? |
| Storage | 8 GB | ? raw hardware | ? raw hardware | ? raw hardware |
| Main Camera | 5 megapixel | - | 5 megapixel | 1 megapixel |
| Wide Camera | - | - | - | - |
| Tele Camera | - | - | - | - |
| Video Capture | 720p HD | - | VGA (640 x 480) | QCIF (176 x 144) |
| Front Camera | - | - | - | - |
| Weight |
4.39 oz (124g) |
3 oz (85g) |
5.1 oz (145g) |
3.95 oz (112g) |
| Dimensions |
4.72" x 2.52" x 0.39" (120 x 64 x 9.9 mm) |
4" x 1.7" x 0.8" (102 x 43 x 20.3 mm) |
3.96" x 2.35" x 0.67" (101 x 60 x 17 mm) |
3.46" x 1.89" x 1.02" (88 x 48 x 25.9 mm) |
| Form Factor | Slab | Slab | Slide | Clamshell |
| Platform / OS | Windows | (proprietary) | webOS | (proprietary) |
| Network Bands |
GSM: 850, 1900 |
WCDMA: 2, 5 GSM: 850, 900, 1800, 1900 |
WCDMA: 2, 5 GSM: 850, 900, 1800, 1900 |
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| Data Technology | HSPA+ 21 | - | HSDPA 3.6 | HSDPA 1.8 |
| Features | ||||
| GPS / Location | n/a | Yes | n/a | - |
| Accessibility | ||||
| Hearing Aid Compatible | Yes | - | - | Yes |
| Multiple Languages | n/a | - | n/a | Yes |
| TTY/TDD (Digital) | Yes | Yes | Yes | Yes |
| Alerts | ||||
| Extra Display | - | - | - | Yes |
| Ringer Profiles | - | Yes | - | Yes |
| Connectivity | ||||
| Bluetooth |
Yes |
- |
Yes Classic Audio |
Yes Classic Audio |
| Mobile Hotspot | n/a | - | n/a | - |
| USB | Yes | - |
Yes Micro-USB |
Yes |
| Wi-Fi | Yes | - |
Yes 802.11 b,g |
- |
| Contacts | ||||
| Picture ID | n/a | Yes | n/a | Yes |
| Ringer ID | n/a | Yes | n/a | Yes |
| Voice Dialing | n/a | - | n/a | - |
| Customization | ||||
| Changeable Body Plates | - | Yes | - | - |
| Custom Graphics | n/a | Yes | n/a | Yes |
| Custom Ringtones | n/a | Yes | n/a | Yes |
| Real-Music Ringers | n/a | - | n/a | Yes |
| Data & Network | ||||
| Data Tethering | n/a | - | n/a | Yes |
| WAP / Web Browser | n/a | Yes | n/a | Yes |
| Input | ||||
| Predictive Text Entry | n/a | Yes | n/a | Yes |
| Side Keys | Yes | - | Yes | Yes |
| Text Keyboard, Hardware | - | - | Yes | - |
| Touch Screen | Yes | - | Yes | - |
| Memory | ||||
| Memory Card Slot | Yes | - | - | Yes |
| Messaging | ||||
| Email Client | n/a | - | n/a | Yes |
| EMS / Picture Messaging | n/a | Yes | n/a | - |
| 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 | Yes | n/a | Yes |
| Calculator | n/a | Yes | n/a | Yes |
| Calendar | n/a | - | n/a | Yes |
| To-Do List | n/a | - | n/a | Yes |
| Voice Memo | n/a | - | n/a | Yes |
| Software | ||||
| Games | n/a | Yes | n/a | Yes |
| Java (J2ME) | n/a | - | n/a | Yes |
| Voice | ||||
| Speaker Phone | Yes | - | Yes | Yes |
| Nokia Lumia 521 / 520 | Siemens A56 / A56i | Palm Pre 2 (GSM) | Samsung SGH-ZX20 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Nokia Lumia 521 / 520 | Siemens A56 / A56i | Palm Pre 2 (GSM) | Samsung SGH-ZX20 |
