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Phone Nokia Lumia 521 / 520 Audiovox CDM-8150X LeEco Le Pro3 BlackBerry 7100 / 7105
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size 4" diag.
5 : 3
? 5.5" diag.
16 : 9
?
Display Resolution & Type 480 x 800 pixels
(~233 ppi)
LCD (TFT/TFD)
? 1080 x 1920 pixels
(~401 ppi)
LCD (TFT/TFD)
240 x 260 pixels
LCD (Color)
Display Refresh ? ? 60 Hz ?
Battery 1,430 mAh ? 4,070 mAh ?
Processor 1 GHz Qualcomm Snapdragon S4 MSM8270 ? 2.4 GHz Qualcomm Snapdragon 821 (MSM8996) ?
RAM 512 MB ? 4 GB ?
Storage 8 GB ? raw hardware 64 GB ? raw hardware
Main Camera 5 megapixel - 16 megapixel -
Wide Camera - - - -
Tele Camera - - - -
Video Capture 720p HD - 4K UHD -
Front Camera - - 8 megapixel -
Weight 4.39 oz
(124g)
3.88 oz
(110g)
6.24 oz
(177g)
4.3 oz
(122g)
Dimensions 4.72" x 2.52" x 0.39"
(120 x 64 x 9.9 mm)
4.88" x 1.89" x 0.71"
(124 x 48 x 18 mm)
5.96" x 2.9" x 0.29"
(151 x 74 x 7.4 mm)
4.7" x 2.3" x 0.7"
(119 x 58 x 17.8 mm)
Form Factor Slab Slab Slab Slab
Platform / OS Windows (proprietary) Android BlackBerry OS
Network Bands

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

*

CDMA: 850, 1900

AMPS: 850

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 17, 29, 30

WCDMA: 1, 2, 4, 5, 8

GSM: 850, 900, 1800, 1900

GSM: 850, 900, 1800, 1900

Data Technology HSPA+ 21 1xRTT LTE (Cat 6) GPRS
Features 
Fingerprint Reader - - Yes -
Flashlight - - Yes -
GPS / Location n/a - n/a n/a
Accessibility
Hearing Aid Compatible Yes - Yes -
Multiple Languages n/a Yes n/a n/a
TTY/TDD (Digital) Yes - Yes Yes
Alerts
Ringer Profiles - - - Yes
Connectivity
Bluetooth Yes - Yes
Classic Audio
Yes
Classic Audio
Infrared (IR) - - Yes -
Mobile Hotspot n/a - n/a n/a
NFC - - Yes -
USB Yes - Yes
USB Type C
Yes
Wi-Fi Yes - 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 Yes n/a n/a
Customization
Custom Graphics n/a - n/a n/a
Custom Ringtones n/a Yes n/a n/a
Real-Music Ringers n/a - n/a n/a
Data & Network
Data Tethering n/a - n/a n/a
WAP / Web Browser n/a Yes n/a n/a
Input
Predictive Text Entry n/a Yes n/a n/a
Side Keys Yes Yes Yes Yes
Text Keyboard, Hardware - - - Yes
Touch Screen Yes - Yes -
Memory
Memory Card Slot 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
Music
Headphone Jack (3.5mm) Yes - - -
Music Player n/a - n/a n/a
Photo & Video
DLNA - - Yes -
Miracast - - Yes -
Power
Fast Charging - - Yes -
Productivity
Alarm n/a - n/a n/a
Calculator n/a Yes n/a n/a
Calendar n/a Yes n/a n/a
To-Do List n/a - n/a n/a
Voice Memo n/a Yes n/a n/a
Software
Games n/a - n/a n/a
Java (J2ME) n/a - n/a n/a
Voice
HD Voice - - Yes -
Headset Jack (2.5 mm) n/a Yes n/a n/a
Speaker Phone Yes - Yes Yes
  Nokia Lumia 521 / 520 Audiovox CDM-8150X LeEco Le Pro3 BlackBerry 7100 / 7105
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Phone Nokia Lumia 521 / 520 Audiovox CDM-8150X LeEco Le Pro3 BlackBerry 7100 / 7105

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