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Phone Nokia Lumia 521 / 520 Nokia N78 Nokia 6170 Motorola Moto z4 LG K8 (2017)
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size 4" diag.
5 : 3
2.4" diag.
4 : 3
? 6.4" diag.
19.5 : 9
5" diag.
16 : 9
Display Resolution & Type 480 x 800 pixels
(~233 ppi)
LCD (TFT/TFD)
240 x 320 pixels
(~167 ppi)
LCD (TFT/TFD)
128 x 160 pixels
LCD (TFT/TFD)
1080 x 2340 pixels
(~403 ppi)
AMOLED
720 x 1280 pixels
(~294 ppi)
LCD (TFT/TFD)
Display Refresh ? ? ? 60 Hz 60 Hz
Battery 1,430 mAh 1,200 mAh 760 mAh 3,600 mAh 2,500 mAh
Processor 1 GHz Qualcomm Snapdragon S4 MSM8270 369 MHz ARM 11 ? 2 GHz Qualcomm Snapdragon 675 1.4 GHz Qualcomm Snapdragon 425 (MSM8917)
RAM 512 MB ? ? 4 GB 1.5 GB
Storage 8 GB ? raw hardware ? raw hardware 128 GB 16 GB
Main Camera 5 megapixel 3 megapixel Yes 48 megapixel 8 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture 720p HD VGA (640 x 480) ? 4K UHD 1080p HD
Front Camera - - - 25 megapixel 5 megapixel
Weight 4.39 oz
(124g)
3.59 oz
(102g)
4.34 oz
(123g)
6 oz
(170g)
5 oz
(142g)
Dimensions 4.72" x 2.52" x 0.39"
(120 x 64 x 9.9 mm)
4.45" x 1.93" x 0.59"
(113 x 49 x 15.1 mm)
3.46" x 1.81" x 0.94"
(88 x 46 x 23.9 mm)
6.22" x 2.96" x 0.29"
(158 x 75 x 7.4 mm)
5.7" x 2.83" x 0.31"
(145 x 72 x 7.9 mm)
Form Factor Slab Slab Clamshell Slab Slab
Platform / OS Windows S60 (Symbian) (proprietary) Android Android
Network Bands

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

*

WCDMA: 2, 5

GSM: 850, 900, 1800, 1900

*

GSM: 850, 1800, 1900

*

4G LTE: 2, 3, 4, 5, 7, 12, 13, 20, 25, 26, 28, 29, 30, 38, 41, 66, 71

WCDMA: 1, 2, 4, 5, 8

CDMA: 800, 850, 1900

GSM: 850, 900, 1800, 1900

*

4G LTE: 2, 4, 5, 12, 25

CDMA: 850, 1900

Data Technology HSPA+ 21 HSDPA 3.6 EDGE LTE (Cat 12) LTE (Cat 4)
Features 
Fingerprint Reader - - - Yes -
Flashlight - - - Yes Yes
GPS / Location n/a n/a - n/a n/a
Water-Resistant - - - Yes -
Accessibility
Hearing Aid Compatible Yes - - Yes Yes
Multiple Languages n/a n/a Yes n/a n/a
TTY/TDD (Digital) Yes - Yes Yes Yes
Alerts
Extra Display - - Yes - -
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 n/a
NFC - - - Yes -
USB Yes Yes
Micro-USB
Yes Yes
USB Type C
Yes
Micro-USB
Wi-Fi Yes Yes
802.11 b,g
- Yes
5 (802.11 a,ac,b,g,n)
Yes
4 (802.11 b,g,n)
Contacts
Picture ID n/a n/a Yes n/a n/a
Ringer ID n/a n/a - n/a n/a
Voice Dialing n/a n/a Yes n/a n/a
Customization
Custom Graphics n/a n/a Yes n/a n/a
Custom Ringtones n/a n/a Yes n/a n/a
Real-Music Ringers n/a n/a - n/a n/a
Data & Network
Data Tethering n/a n/a Yes n/a n/a
WAP / Web Browser n/a n/a Yes n/a n/a
Input
Predictive Text Entry n/a n/a Yes n/a n/a
Side Keys Yes Yes Yes Yes Yes
Touch Screen Yes - - Yes Yes
Memory
Memory Card Slot Yes Yes - Yes Yes
Messaging
Email Client n/a n/a Yes n/a n/a
EMS / Picture Messaging n/a n/a Yes n/a n/a
Instant Messaging n/a n/a Yes n/a n/a
MMS n/a n/a Yes n/a n/a
Text Messaging Templates n/a n/a Yes n/a n/a
Music
FM Radio - Yes - Yes Yes
FM Transmitter n/a n/a - n/a n/a
Headphone Jack (3.5mm) Yes Yes - Yes Yes
Music Player n/a n/a - n/a n/a
Stereo Speakers - Yes - - -
Photo & Video
TV Output - Yes - - -
Video Calling n/a n/a - n/a n/a
Power
Fast Charging - - - Yes -
Productivity
Alarm n/a n/a Yes n/a n/a
Calculator n/a n/a Yes n/a n/a
Calendar n/a n/a Yes n/a n/a
To-Do List n/a n/a Yes n/a n/a
Voice Memo n/a n/a Yes n/a n/a
Software
Games n/a n/a Yes n/a n/a
Java (J2ME) n/a n/a Yes n/a n/a
Voice
HD Voice - - - Yes -
Push-To-Talk - Yes * Yes - -
Speaker Phone Yes Yes Yes Yes Yes
  * Some versions only
  Nokia Lumia 521 / 520 Nokia N78 Nokia 6170 Motorola Moto z4 LG K8 (2017)
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Phone Nokia Lumia 521 / 520 Nokia N78 Nokia 6170 Motorola Moto z4 LG K8 (2017)

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