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Phone Nokia Lumia 521 / 520 HTC 10 BlackBerry Curve 8330 Sony Xperia XZ1 Samsung M520
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size 4" diag.
5 : 3
5.2" diag.
16 : 9
? 5.2" diag.
16 : 9
2.1" diag.
4 : 3
Display Resolution & Type 480 x 800 pixels
(~233 ppi)
LCD (TFT/TFD)
1440 x 2560 pixels
(~565 ppi)
LCD (TFT/TFD)
320 x 240 pixels
LCD (TFT/TFD)
1080 x 1920 pixels
(~424 ppi)
LCD (TFT/TFD)
176 x 220 pixels
(~134 ppi)
LCD (TFT/TFD)
Display Refresh ? 60 Hz ? 60 Hz ?
Battery 1,430 mAh 3,000 mAh 1,150 mAh 2,700 mAh ?
Processor 1 GHz Qualcomm Snapdragon S4 MSM8270 2.2 GHz Qualcomm Snapdragon 820 (MSM8996) ? 2.5 GHz Qualcomm Snapdragon 835 (MSM8998) ?
RAM 512 MB 4 GB ? 4 GB ?
Storage 8 GB 32 GB * ? raw hardware 64 GB ? raw hardware
Main Camera 5 megapixel 12 megapixel 2 megapixel 19 megapixel 1 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture 720p HD 4K UHD ? 4K UHD ?
Front Camera - 5 megapixel - 13 megapixel -
Weight 4.39 oz
(124g)
5.68 oz
(161g)
4.02 oz
(114g)
5.5 oz
(156g)
2.75 oz
(78g)
Dimensions 4.72" x 2.52" x 0.39"
(120 x 64 x 9.9 mm)
5.74" x 2.83" x 0.35"
(146 x 72 x 9 mm)
4.2" x 2.4" x 0.6"
(107 x 61 x 15.2 mm)
5.82" x 2.89" x 0.29"
(148 x 73 x 7.4 mm)
4.01" x 2.04" x 0.5"
(102 x 52 x 12.7 mm)
Form Factor Slab Slab Slab Slab Slide
Platform / OS Windows Android BlackBerry OS Android (proprietary)
Network Bands

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

*

4G LTE: 1, 2, 3, 4, 5, 7, 12, 13, 17, 20, 28, 29, 30

WCDMA: 1, 2, 4, 5

CDMA: 850, 1900

GSM: 850, 900, 1800, 1900

*

CDMA: 850, 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

CDMA: 850, 1900

Data Technology HSPA+ 21 LTE (Cat 9) EVDO r0 LTE (Cat 16) EVDO r0
Features 
Barometer - - - Yes -
Fingerprint Reader - Yes - Yes *
stand-alone
-
Flashlight - Yes - Yes -
GPS / Location n/a n/a n/a n/a Yes
Water-Resistant - Yes
IPX3 (falling spray)
- Yes
IPX8 (SCUBA)
-
Accessibility
Adjustable Text Size n/a n/a n/a n/a -
Hearing Aid Compatible Yes Yes Yes Yes Yes
Multiple Languages n/a n/a n/a n/a Yes
TTY/TDD (Digital) Yes Yes Yes Yes Yes
Alerts
Ringer Profiles - - Yes - -
Connectivity
Bluetooth Yes Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
MirrorLink - Yes - - -
Mobile Hotspot n/a n/a n/a n/a -
NFC - Yes - Yes -
USB Yes Yes
USB Type C
Yes
Mini-USB
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 n/a Yes
Ringer ID n/a n/a n/a n/a Yes
Voice Dialing n/a n/a n/a n/a Yes
Customization
Custom Graphics n/a n/a n/a n/a Yes
Custom Ringtones n/a n/a n/a n/a Yes
Real-Music Ringers n/a n/a n/a n/a -
Data & Network
Data Tethering n/a n/a n/a n/a Yes
Dual-SIM - - - Yes * -
WAP / Web Browser n/a n/a n/a n/a Yes
Input
Predictive Text Entry n/a n/a n/a n/a Yes
Side Keys Yes Yes Yes Yes Yes
Text Keyboard, Hardware - - Yes - -
Touch Screen Yes Yes - Yes -
Memory
Memory Card Slot Yes Yes Yes Yes Yes
Messaging
Email Client n/a n/a n/a n/a -
Instant Messaging n/a n/a n/a n/a -
MMS n/a n/a n/a n/a -
Text Messaging Templates n/a n/a n/a n/a Yes
Music
Headphone Jack (3.5mm) Yes Yes Yes Yes -
Music Player n/a n/a n/a n/a Yes
Stereo Speakers - - - Yes -
Photo & Video
DLNA - Yes - Yes -
Miracast - Yes - Yes -
TV Output - Yes - - -
Power
Fast Charging - Yes - Yes -
Productivity
Alarm n/a n/a n/a n/a Yes
Calculator n/a n/a n/a n/a Yes
Calendar n/a n/a n/a n/a Yes
To-Do List n/a n/a n/a n/a Yes
Voice Memo n/a n/a n/a n/a Yes
Software
Games n/a n/a n/a n/a Yes
Java (J2ME) n/a n/a n/a n/a Yes
Voice
HD Voice - Yes - Yes -
Speaker Phone Yes Yes Yes Yes Yes
  * Some versions only
  Nokia Lumia 521 / 520 HTC 10 BlackBerry Curve 8330 Sony Xperia XZ1 Samsung M520
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Nokia Lumia 521 / 520 HTC 10 BlackBerry Curve 8330 Sony Xperia XZ1 Samsung M520

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