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| Phone | Siemens SL55 | ZTE C88 | Nokia Lumia 521 / 520 |
| Current U.S. Carriers | (none) | (none) | (none) |
| Global Availability | Released | Released | Released |
| Specifications | |||
|---|---|---|---|
| Display Size | ? |
2" diag. 4 : 3 |
4" diag. 5 : 3 |
| Display Resolution & Type |
101 x 80 pixels LCD (STN) |
176 x 220 pixels (~141 ppi) LCD (TFT/TFD) |
480 x 800 pixels (~233 ppi) LCD (TFT/TFD) |
| Display Refresh | ? | ? | ? |
| Battery | 500 mAh | 800 mAh | 1,430 mAh |
| Processor | ? | ? | 1 GHz Qualcomm Snapdragon S4 MSM8270 |
| RAM | ? | ? | 512 MB |
| Storage | ? raw hardware | ? raw hardware | 8 GB |
| Main Camera | - | Yes | 5 megapixel |
| Wide Camera | - | - | - |
| Tele Camera | - | - | - |
| Video Capture | - | - | 720p HD |
| Front Camera | - | - | - |
| Weight |
2.79 oz (79g) |
3.46 oz (98g) |
4.39 oz (124g) |
| Dimensions |
3.21" x 1.75" x 0.86" (82 x 44 x 21.8 mm) |
3.85" x 1.92" x 0.7" (98 x 49 x 17.8 mm) |
4.72" x 2.52" x 0.39" (120 x 64 x 9.9 mm) |
| Form Factor | Slide | Clamshell | Slab |
| Platform / OS | (proprietary) | (proprietary) | Windows |
| Network Bands |
GSM: 900, 1800, 1900 |
CDMA: 850, 1900 |
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| Data Technology | GPRS | 1xRTT | HSPA+ 21 |
| Features | |||
| GPS / Location | - | Yes | n/a |
| Accessibility | |||
| Hearing Aid Compatible | - | - |
Yes M3, T4 (very tele-coil compatible) |
| Multiple Languages | Yes | Yes | n/a |
| TTY/TDD (Digital) | - | Yes | Yes |
| Alerts | |||
| Extra Display | - | Yes | - |
| Ringer Profiles | Yes | - | - |
| Connectivity | |||
| Bluetooth | - | Yes | Yes |
| Infrared (IR) | Yes | - | - |
| Mobile Hotspot | - | - | n/a |
| USB | - |
Yes Micro-USB |
Yes |
| Wi-Fi | - | - | Yes |
| Contacts | |||
| Picture ID | Yes | - | n/a |
| Ringer ID | Yes | Yes | n/a |
| Voice Dialing | Yes | Yes | n/a |
| Customization | |||
| Custom Graphics | Yes | Yes | n/a |
| Custom Ringtones | Yes | Yes | n/a |
| Real-Music Ringers | - | Yes | n/a |
| Data & Network | |||
| Data Tethering | Yes | - | n/a |
| WAP / Web Browser | Yes | Yes | n/a |
| Input | |||
| Predictive Text Entry | Yes | Yes | n/a |
| Side Keys | Yes | Yes | Yes |
| Touch Screen | - | - |
Yes Capacitive |
| Memory | |||
| Memory Card Slot | - | - | Yes |
| Messaging | |||
| Email Client | Yes | Yes | n/a |
| EMS / Picture Messaging | Yes | - | n/a |
| Instant Messaging | - | Yes | n/a |
| MMS | Yes | Yes | n/a |
| Text Messaging Templates | Yes | Yes | n/a |
| Music | |||
| Headphone Jack (3.5mm) | - | - | Yes |
| Music Player | - | - | n/a |
| Productivity | |||
| Alarm | Yes | Yes | n/a |
| Calculator | Yes | Yes | n/a |
| Calendar | Yes | Yes | n/a |
| To-Do List | Yes | - | n/a |
| Voice Memo | Yes | Yes | n/a |
| Software | |||
| BREW | - | Yes | n/a |
| Games | Yes | Yes | n/a |
| Java (J2ME) | Yes | - | n/a |
| Voice | |||
| Speaker Phone | Yes | Yes | Yes |
| Siemens SL55 | ZTE C88 | Nokia Lumia 521 / 520 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Siemens SL55 | ZTE C88 | Nokia Lumia 521 / 520 |
