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Phone Nubia Red Magic 3 / 3S Samsung SGH-X640 Samsung Galaxy S6 (GSM) HTC Desire 555 Huawei M750
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size 6.7" diag.
19.5 : 9
? 5.1" diag.
16 : 9
5" diag.
16 : 9
2.8" diag.
4 : 3
Display Resolution & Type 1080 x 2340 pixels
(~388 ppi)
AMOLED
128 x 160 pixels
LCD (TFT/TFD)
1440 x 2560 pixels
(~576 ppi)
AMOLED
720 x 1280 pixels
(~294 ppi)
LCD (TFT/TFD)
240 x 320 pixels
(~143 ppi)
LCD (TFT/TFD)
Display Refresh 90 Hz ? 60 Hz 60 Hz ?
Battery 5,000 mAh 800 mAh 2,550 mAh 2,200 mAh 1,150 mAh
Processor Qualcomm Snapdragon 855+ ? 2.1 GHz Samsung Exynos 7420 1.1 GHz Qualcomm Snapdragon 210 (MSM8909) ?
RAM 8 GB * ? 3 GB 2 GB ?
Storage 128 GB * ? raw hardware 32 GB * 16 GB ? raw hardware
Main Camera 48 megapixel Yes 16 megapixel 8 megapixel 1 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture 4K UHD - 4K UHD 720p HD -
Front Camera 16 megapixel - 5 megapixel 5 megapixel -
Weight 7.58 oz
(215g)
3 oz
(85g)
4.87 oz
(138g)
4.93 oz
(140g)
3.92 oz
(111g)
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)
5.65" x 2.78" x 0.27"
(143 x 71 x 6.8 mm)
5.78" x 2.79" x 0.33"
(147 x 71 x 8.4 mm)
4.21" x 2.25" x 0.59"
(107 x 57 x 14.9 mm)
Form Factor Slab Clamshell Slab Slab Slab
Platform / OS Android (proprietary) Android Android (proprietary)
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: 1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 29, 30

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

*

4G LTE: 2, 4, 5, 12

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

CDMA: 850, 1700, 1900

Data Technology LTE (Cat 9) GPRS LTE (Cat 6) LTE (Cat 4) 1xRTT
Features 
Fingerprint Reader Yes
stand-alone
- Yes - -
Flashlight Yes - Yes Yes -
GPS / Location n/a - n/a n/a Yes
VR-ready - - Yes - -
Accessibility
Hearing Aid Compatible - - Yes Yes * Yes
Multiple Languages n/a Yes n/a n/a -
TTY/TDD (Digital) Yes - Yes Yes Yes
Connectivity
Bluetooth Yes - Yes Yes Yes
Infrared (IR) - - Yes - -
MirrorLink - - Yes - -
NFC - - Yes - -
USB Yes
USB Type C
- Yes
Micro-USB
Yes
Micro-USB
Yes
Wi-Fi Yes
5 (802.11 a,ac,b,g,n)
- Yes
5 (802.11 a,ac,b,g,n)
Yes
4 (802.11 b,g,n)
-
Contacts
Picture ID n/a Yes n/a n/a Yes
Ringer ID n/a Yes n/a n/a Yes
Customization
Custom Graphics n/a Yes n/a n/a Yes
Custom Ringtones n/a Yes n/a n/a Yes
Data & Network
Dual-SIM Yes - - - -
WAP / Web Browser n/a Yes n/a n/a Yes
Input
Predictive Text Entry n/a Yes n/a n/a -
Side Keys Yes Yes Yes Yes Yes
Stylus - - - - Yes
Text Keyboard, Hardware Yes - - - -
Touch Screen Yes - Yes Yes Yes
Memory
Memory Card Slot - - - Yes Yes
Messaging
Email Client n/a - n/a n/a Yes
EMS / Picture Messaging n/a Yes n/a n/a -
Instant Messaging n/a - n/a n/a Yes
MMS n/a Yes n/a n/a Yes
Text Messaging Templates n/a Yes n/a n/a Yes
Music
FM Radio - - - Yes -
Headphone Jack (3.5mm) Yes - Yes Yes Yes
Music Player n/a - n/a n/a Yes
Stereo Speakers Yes - - - -
Photo & Video
DLNA - - Yes Yes -
Miracast - - Yes Yes -
TV Output Yes - Yes - -
Power
Fast Charging Yes - Yes - -
Wireless Charging - - Yes - -
Productivity
Alarm n/a Yes n/a n/a Yes
Calculator n/a Yes n/a n/a Yes
Calendar n/a Yes n/a n/a Yes
To-Do List n/a Yes n/a n/a -
Voice Memo n/a Yes n/a n/a Yes
Software
BREW n/a - n/a n/a Yes
Games n/a Yes n/a n/a Yes
Java (J2ME) n/a Yes n/a n/a -
Voice
HD Voice Yes - Yes Yes -
Headset Jack (2.5 mm) n/a Yes n/a n/a -
Speaker Phone Yes Yes Yes Yes Yes
  * Some versions only
  Nubia Red Magic 3 / 3S Samsung SGH-X640 Samsung Galaxy S6 (GSM) HTC Desire 555 Huawei M750
  X > < 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 Samsung Galaxy S6 (GSM) HTC Desire 555 Huawei M750

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