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| Phone | Nokia Lumia 521 / 520 | Apple iPhone 11 Pro | Sony Ericsson W810 | ZTE Agent | BlackBerry 7750 |
| Current U.S. Carriers | (none) | (none) | (none) | (none) | (none) |
| Global Availability | Released | Released | Released | Released | Released |
| Specifications | |||||
|---|---|---|---|---|---|
| Display Size |
4" diag. 5 : 3 |
5.8" diag. 19.5 : 9 |
? |
2.4" diag. 4 : 3 |
? |
| Display Resolution & Type |
480 x 800 pixels (~233 ppi) LCD (TFT/TFD) |
1125 x 2436 pixels (~463 ppi) AMOLED |
176 x 220 pixels LCD (TFT/TFD) |
240 x 320 pixels (~167 ppi) LCD (TFT/TFD) |
240 x 240 pixels LCD (Color) |
| Display Refresh | ? | 60 Hz | ? | ? | ? |
| Battery | 1,430 mAh | 3,190 mAh | ? | 900 mAh | ? |
| Processor | 1 GHz Qualcomm Snapdragon S4 MSM8270 | Apple A13 Bionic | ? | ? | ? |
| RAM | 512 MB | 4 GB | ? | ? | ? |
| Storage | 8 GB | 64 GB * | ? raw hardware | ? raw hardware | ? raw hardware |
| Main Camera | 5 megapixel | 12 megapixel | 2 megapixel | 1 megapixel | - |
| Wide Camera | - | 12 megapixel | - | - | - |
| Tele Camera | - | 12 megapixel | - | - | - |
| Video Capture | 720p HD | 4K UHD | ? | ? | - |
| Front Camera | - | 12 megapixel | - | - | - |
| Weight |
4.39 oz (124g) |
6.63 oz (188g) |
3.49 oz (99g) |
3.53 oz (100g) |
5.01 oz (142g) |
| Dimensions |
4.72" x 2.52" x 0.39" (120 x 64 x 9.9 mm) |
5.67" x 2.81" x 0.32" (144 x 71 x 8.1 mm) |
3.94" x 1.81" x 0.77" (100 x 46 x 19.6 mm) |
4.3" x 1.9" x 0.6" (109 x 48 x 15.2 mm) |
4.76" x 3.03" x 0.71" (121 x 77 x 18 mm) |
| Form Factor | Slab | Slab | Slab | Slab | Slab |
| Platform / OS | Windows | iOS | (proprietary) | (proprietary) | BlackBerry OS |
| Network Bands |
4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 29, 30, 34, 38, 39, 40, 41, 46, 48, 66, 71 WCDMA: 1, 2, 4, 5, 8 CDMA: 800, 850, 1900 GSM: 850, 900, 1800, 1900 |
GSM: 850, 900, 1800, 1900 |
CDMA: 850, 1700, 1900 |
CDMA: 850, 1900 |
|
| Data Technology | HSPA+ 21 | LTE (Cat 18) | EDGE | 1xRTT | 1xRTT |
| Features | |||||
| Barometer | - | Yes | - | - | - |
| Flashlight | - | Yes | Yes | - | - |
| GPS / Location | n/a | n/a | - | Yes | n/a |
| Water-Resistant | - |
Yes IPX8 (SCUBA) |
- | - | - |
| Accessibility | |||||
| Hearing Aid Compatible | Yes | Yes | - | Yes | - |
| Multiple Languages | n/a | n/a | Yes | Yes | n/a |
| TTY/TDD (Digital) | Yes | Yes | Yes | Yes | Yes |
| Alerts | |||||
| Ringer Profiles | - | - | Yes | - | Yes |
| Connectivity | |||||
| Bluetooth |
Yes |
Yes Classic Audio |
Yes Classic Audio |
Yes Classic Audio |
- |
| Infrared (IR) | - | - | Yes | - | - |
| Mobile Hotspot | n/a | n/a | - | - | n/a |
| NFC | - | Yes | - | - | - |
| USB | Yes | Yes | Yes |
Yes Micro-USB |
Yes |
| UWB | - | Yes | - | - | - |
| Wi-Fi | Yes |
Yes 6 (802.11 a,ac,ax,b,g,n) |
- | - | - |
| Contacts | |||||
| Picture ID | n/a | n/a | Yes | - | n/a |
| Ringer ID | n/a | n/a | Yes | Yes | n/a |
| Voice Dialing | n/a | n/a | Yes | - | n/a |
| Customization | |||||
| Custom Graphics | n/a | n/a | Yes | Yes | n/a |
| Custom Ringtones | n/a | n/a | Yes | Yes | n/a |
| Real-Music Ringers | n/a | n/a | Yes | Yes | n/a |
| Data & Network | |||||
| Data Tethering | n/a | n/a | Yes | - | n/a |
| Dual-SIM | - | Yes | - | - | - |
| External Antenna Jack | n/a | n/a | Yes | - | n/a |
| WAP / Web Browser | n/a | n/a | Yes | Yes | n/a |
| Input | |||||
| Predictive Text Entry | n/a | n/a | Yes | Yes | n/a |
| Side Keys | Yes | Yes | Yes | Yes | Yes |
| Text Keyboard, Hardware | - | - | - | - | Yes |
| Touch Screen | Yes | Yes | - | - | - |
| Memory | |||||
| Memory Card Slot | Yes | - | Yes | Yes | - |
| Messaging | |||||
| Email Client | n/a | n/a | Yes | Yes | n/a |
| EMS / Picture Messaging | n/a | n/a | Yes | - | n/a |
| Instant Messaging | n/a | n/a | Yes | Yes | n/a |
| MMS | n/a | n/a | Yes | Yes | n/a |
| Text Messaging Templates | n/a | n/a | Yes | Yes | n/a |
| Music | |||||
| FM Radio | - | - | Yes | - | - |
| Headphone Jack (3.5mm) | Yes | - | - | Yes | - |
| Music Player | n/a | n/a | Yes | Yes | n/a |
| Stereo Speakers | - | Yes | - | - | - |
| Photo & Video | |||||
| TV Output | - | Yes | - | - | - |
| Power | |||||
| Fast Charging | - | Yes | - | - | - |
| Wireless Charging | - | Yes | - | - | - |
| Productivity | |||||
| Alarm | n/a | n/a | Yes | Yes | n/a |
| Calculator | n/a | n/a | Yes | Yes | n/a |
| Calendar | n/a | n/a | Yes | Yes | n/a |
| To-Do List | n/a | n/a | Yes | - | n/a |
| Voice Memo | n/a | n/a | Yes | Yes | n/a |
| Software | |||||
| BREW | n/a | n/a | - | Yes | n/a |
| Games | n/a | n/a | Yes | Yes | n/a |
| Java (J2ME) | n/a | n/a | Yes | - | n/a |
| Voice | |||||
| HD Voice | - | Yes | - | - | - |
| Headset Jack (2.5 mm) | n/a | n/a | - | - | n/a |
| Speaker Phone | Yes | Yes | Yes | Yes | - |
| Nokia Lumia 521 / 520 | Apple iPhone 11 Pro | Sony Ericsson W810 | ZTE Agent | BlackBerry 7750 | |
NOTE: Differences are highlighted with bold / black text for visual clarity only.
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| Phone | Nokia Lumia 521 / 520 | Apple iPhone 11 Pro | Sony Ericsson W810 | ZTE Agent | BlackBerry 7750 |
