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Phone Nokia Lumia 521 / 520 Google Pixel 5a Sony Xperia Z1 / Z1s
Current U.S. Carriers (none) (none) (none)
Global Availability Released Released Released
Specifications 
Display Size 4" diag.
5 : 3
6.3" diag.
20 : 9
5" diag.
16 : 9
Display Resolution & Type 480 x 800 pixels
(~233 ppi)
LCD (TFT/TFD)
1080 x 2400 pixels
(~415 ppi)
AMOLED
1080 x 1920 pixels
(~441 ppi)
LCD (TFT/TFD)
Display Refresh ? 60 Hz 60 Hz
Battery 1,430 mAh 4,680 mAh 3,000 mAh
Processor 1 GHz Qualcomm Snapdragon S4 MSM8270 2.4 GHz Qualcomm Snapdragon 765G 2.2 GHz Qualcomm Snapdragon 800 MSM8974
RAM 512 MB 6 GB 2 GB
Storage 8 GB 128 GB 32 GB *
Main Camera 5 megapixel 12 megapixel 20 megapixel
Wide Camera - 16 megapixel -
Tele Camera - - -
Video Capture 720p HD 4K UHD 1080p HD
Front Camera - 8 megapixel 2 megapixel
Weight 4.39 oz
(124g)
6.53 oz
(185g)
5.96 oz
(169g)
Dimensions 4.72" x 2.52" x 0.39"
(120 x 64 x 9.9 mm)
6.1" x 2.9" x 0.3"
(155 x 74 x 7.6 mm)
5.69" x 2.91" x 0.33"
(144 x 74 x 8.5 mm)
Platform / OS Windows Android Android
Network Bands

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

*

5G: 1, 2, 5, 12, 25, 28, 41, 66, 71, 77-C, 78

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 29, 30, 32, 38, 39, 40, 41, 46, 48, 66, 71

WCDMA: 1, 2, 4, 5, 8

CDMA: 800, 850, 1900

GSM: 850, 900, 1800, 1900

4G LTE: 4, 17

WCDMA: 1, 2, 4, 5, 8

GSM: 850, 900, 1800, 1900

*

Data Technology HSPA+ 21 NR (5G) HSPA+ 42
Features 
Barometer - Yes -
Fingerprint Reader - Yes
stand-alone
-
Flashlight - Yes -
Ruggedized - - Yes
Water-Resistant - Yes
IPX7 (snorkeling)
Yes
Accessibility
Hearing Aid Compatible Yes Yes Yes
TTY/TDD (Digital) Yes Yes Yes
Connectivity
Bluetooth Yes Yes Yes
MirrorLink - - Yes
NFC - Yes Yes
USB Yes Yes
USB Type C
Yes
Micro-USB
Wi-Fi Yes Yes
5 (802.11 a,ac,b,g,n)
Yes
5 (802.11 a,ac,b,g,n)
Data & Network
Dual-SIM - Yes -
Input
Side Keys Yes Yes Yes
Touch Screen Yes Yes Yes
Memory
Memory Card Slot Yes - Yes
Music
FM Radio - - Yes
Headphone Jack (3.5mm) Yes Yes Yes
Stereo Speakers - Yes -
Photo & Video
DLNA - - Yes
Miracast - - Yes
TV Output - - Yes
Power
Fast Charging - Yes -
Voice
Call Screening - Yes -
HD Voice - Yes -
Speaker Phone Yes Yes Yes
  Nokia Lumia 521 / 520 Google Pixel 5a Sony Xperia Z1 / Z1s
  X > < X > < X

NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Nokia Lumia 521 / 520 Google Pixel 5a Sony Xperia Z1 / Z1s

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