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Phone Nokia Lumia 521 / 520 Sony Xperia XZ1 BlackBerry Key2 Motorola W175
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size 4" diag.
5 : 3
5.2" diag.
16 : 9
4.5" diag.
5 : 3
?
Display Resolution & Type 480 x 800 pixels
(~233 ppi)
LCD (TFT/TFD)
1080 x 1920 pixels
(~424 ppi)
LCD (TFT/TFD)
1080 x 1620 pixels
(~433 ppi)
LCD (TFT/TFD)
128 x 128 pixels
LCD (STN)
Display Refresh ? 60 Hz 60 Hz ?
Battery 1,430 mAh 2,700 mAh 3,500 mAh ?
Processor 1 GHz Qualcomm Snapdragon S4 MSM8270 2.5 GHz Qualcomm Snapdragon 835 (MSM8998) 2.2 GHz Qualcomm Snapdragon 660 ?
RAM 512 MB 4 GB 6 GB ?
Storage 8 GB 64 GB 64 GB * ? raw hardware
Main Camera 5 megapixel 19 megapixel 12 megapixel -
Wide Camera - - - -
Tele Camera - - 12 megapixel -
Video Capture 720p HD 4K UHD 4K UHD -
Front Camera - 13 megapixel 8 megapixel -
Weight 4.39 oz
(124g)
5.5 oz
(156g)
5.93 oz
(168g)
3 oz
(85g)
Dimensions 4.72" x 2.52" x 0.39"
(120 x 64 x 9.9 mm)
5.82" x 2.89" x 0.29"
(148 x 73 x 7.4 mm)
5.96" x 2.82" x 0.33"
(151 x 72 x 8.4 mm)
4.49" x 1.69" x 0.55"
(114 x 43 x 14 mm)
Form Factor Slab Slab Slab Slab
Platform / OS Windows Android Android (proprietary)
Network Bands

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

*

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 25, 26, 28, 29, 40, 41, 66

WCDMA: 1, 2, 4, 5, 8

GSM: 850, 900, 1800, 1900

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 20, 28, 29, 30, 38, 40, 41, 66

WCDMA: 1, 2, 4, 5, 8

GSM: 850, 900, 1800, 1900

GSM: 850, 1900

Data Technology HSPA+ 21 LTE (Cat 16) LTE (Cat 11) -
Features 
Barometer - Yes - -
Fingerprint Reader - Yes *
stand-alone
Yes
stand-alone
-
Flashlight - Yes Yes -
GPS / Location n/a n/a n/a -
Water-Resistant - Yes
IPX8 (SCUBA)
- -
Accessibility
Hearing Aid Compatible Yes Yes Yes -
Multiple Languages n/a n/a n/a Yes
TTY/TDD (Digital) Yes Yes Yes Yes
Connectivity
Bluetooth Yes Yes Yes -
Mobile Hotspot n/a n/a n/a -
NFC - Yes Yes -
USB Yes Yes
USB Type C
Yes
USB Type C
Yes
Wi-Fi Yes Yes
5 (802.11 a,ac,b,g,n)
Yes
5 (802.11 a,ac,b,g,n)
-
Contacts
Picture ID n/a n/a n/a -
Ringer ID n/a n/a n/a -
Voice Dialing n/a n/a n/a -
Customization
Custom Graphics n/a n/a n/a -
Custom Ringtones n/a n/a n/a -
Real-Music Ringers n/a n/a n/a -
Data & Network
Data Tethering n/a n/a n/a -
Dual-SIM - Yes * - -
WAP / Web Browser n/a n/a n/a -
Input
Predictive Text Entry n/a n/a n/a Yes
Side Keys Yes Yes Yes -
Text Keyboard, Hardware - - Yes -
Touch Screen Yes Yes Yes -
Memory
Memory Card Slot Yes Yes Yes -
Messaging
Email Client n/a n/a n/a -
Instant Messaging n/a n/a n/a -
MMS n/a n/a n/a -
Text Messaging Templates n/a n/a n/a Yes
Music
FM Radio - - Yes -
Headphone Jack (3.5mm) Yes Yes Yes -
Music Player n/a n/a n/a -
Stereo Speakers - Yes - -
Photo & Video
DLNA - Yes - -
Miracast - Yes - -
TV Output - - Yes -
Power
Fast Charging - Yes Yes -
Productivity
Alarm n/a n/a n/a Yes
Calculator n/a n/a n/a Yes
Calendar n/a n/a n/a Yes
To-Do List n/a n/a n/a -
Voice Memo n/a n/a n/a -
Software
Games n/a n/a n/a Yes
Voice
HD Voice - Yes Yes -
Speaker Phone Yes Yes Yes Yes
  * Some versions only
  Nokia Lumia 521 / 520 Sony Xperia XZ1 BlackBerry Key2 Motorola W175
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Nokia Lumia 521 / 520 Sony Xperia XZ1 BlackBerry Key2 Motorola W175

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