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Phone Nubia Red Magic 3 / 3S Samsung SGH-X640 BlackBerry Classic (CDMA) Pantech Matrix Pro C820
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size 6.7" diag.
19.5 : 9
? 3.5" diag.
1 : 1
2.4" diag.
4 : 3
Display Resolution & Type 1080 x 2340 pixels
(~388 ppi)
AMOLED
128 x 160 pixels
LCD (TFT/TFD)
720 x 720 pixels
(~291 ppi)
LCD (TFT/TFD)
240 x 320 pixels
(~167 ppi)
LCD (TFT/TFD)
Display Refresh 90 Hz ? ? ?
Battery 5,000 mAh 800 mAh 2,515 mAh 1,320 mAh
Processor Qualcomm Snapdragon 855+ ? 1.5 GHz Qualcomm Snapdragon S4 Plus MSM8960 528 MHz ARM 11
RAM 8 GB * ? 2 GB ?
Storage 128 GB * ? raw hardware 16 GB ? raw hardware
Main Camera 48 megapixel Yes 8 megapixel 2 megapixel
Wide Camera - - - -
Tele Camera - - - -
Video Capture 4K UHD - 1080p HD QCIF (176 x 144)
Front Camera 16 megapixel - 2 megapixel -
Weight 7.58 oz
(215g)
3 oz
(85g)
6.28 oz
(178g)
5.34 oz
(151g)
Dimensions 6.76" x 3.09" x 0.38"
(172 x 79 x 9.7 mm)
3.43" x 1.81" x 0.91"
(87 x 46 x 23.1 mm)
5.16" x 2.85" x 0.4"
(131 x 72 x 10.2 mm)
4.2" x 2" x 0.9"
(107 x 51 x 22.9 mm)
Form Factor Slab Clamshell Slab Slide
Platform / OS Android (proprietary) BlackBerry 10 Windows Mobile Standard
Network Bands

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 25, 26, 28, 30, 34, 38, 39, 40, 41, 66

WCDMA: 1, 2, 4, 5, 8, 19

CDMA: 850, 1900

GSM: 850, 900, 1800, 1900

GSM: 900, 1800, 1900

4G LTE: 3, 4, 13

WCDMA: 1, 2, 5, 8

CDMA: 850, 1900

GSM: 850, 900, 1800, 1900

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

Data Technology LTE (Cat 9) GPRS LTE (Cat 3) HSDPA 3.6
Features 
Fingerprint Reader Yes
stand-alone
- - -
Flashlight Yes - - -
GPS / Location n/a - n/a n/a
Accessibility
Adjustable Text Size n/a - n/a n/a
Hearing Aid Compatible - - Yes
M3, T4 (very tele-coil compatible)
-
Multiple Languages n/a Yes n/a n/a
TTY/TDD (Digital) Yes - Yes Yes
Alerts
Ringer Profiles - - Yes Yes
Connectivity
Bluetooth Yes - Yes Yes
Mobile Hotspot n/a - n/a n/a
NFC - - Yes -
USB Yes
USB Type C
- Yes
Micro-USB
Yes
Wi-Fi Yes
5 (802.11 a,ac,b,g,n)
- Yes
4 (802.11 a,b,g,n)
-
Contacts
Picture ID n/a Yes n/a n/a
Ringer ID n/a Yes n/a n/a
Voice Dialing n/a - n/a n/a
Customization
Custom Graphics n/a Yes 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
Dual-SIM Yes - - -
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 - Yes Yes
Touch Screen Yes
Capacitive
- Yes
Capacitive
-
Memory
Memory Card Slot - - Yes Yes
Messaging
Email Client n/a - n/a n/a
EMS / Picture Messaging n/a Yes n/a n/a
Instant Messaging n/a - n/a n/a
MMS n/a Yes n/a n/a
Text Messaging Templates n/a Yes n/a n/a
Music
FM Radio - - Yes -
Headphone Jack (3.5mm) Yes - Yes -
Music Player n/a - n/a n/a
Stereo Speakers Yes - - -
Photo & Video
DLNA - - Yes -
Miracast - - Yes -
TV Output Yes - Yes -
Power
Fast Charging Yes - - -
Productivity
Alarm n/a Yes 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 Yes n/a n/a
Voice Memo n/a Yes n/a n/a
Software
Games n/a Yes n/a n/a
Java (J2ME) n/a Yes 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 Yes
  Nubia Red Magic 3 / 3S Samsung SGH-X640 BlackBerry Classic (CDMA) Pantech Matrix Pro C820
  X > < X > < X > < X

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

 
Phone Nubia Red Magic 3 / 3S Samsung SGH-X640 BlackBerry Classic (CDMA) Pantech Matrix Pro C820

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