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Phone Samsung SGH-X640 Samsung Glyde U940 Motorola Moto X (Verizon, 1st gen.) Motorola Moto G (GSM, 2nd gen.) Nubia RedMagic 5S
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size ? 2.8" diag.
16.5 : 9
4.7" diag.
16 : 9
5" diag.
16 : 9
6.7" diag.
19.5 : 9
Display Resolution & Type 128 x 160 pixels
LCD (TFT/TFD)
240 x 440 pixels
(~182 ppi)
LCD (TFT/TFD)
720 x 1280 pixels
(~312 ppi)
AMOLED
720 x 1280 pixels
(~294 ppi)
LCD (TFT/TFD)
1080 x 2340 pixels
(~388 ppi)
AMOLED
Display Refresh ? ? 60 Hz 60 Hz 144 Hz
Battery 800 mAh 1,000 mAh 2,200 mAh 2,070 mAh 4,500 mAh
Processor ? ? 1.7 GHz Qualcomm Snapdragon S4 Pro MSM8960 1.2 GHz Qualcomm Snapdragon 400 Qualcomm Snapdragon 865
RAM ? ? 2 GB 1 GB 8 GB *
Storage ? raw hardware ? raw hardware 16 GB * 8 GB * 128 GB *
Main Camera Yes 2 megapixel 10 megapixel 8 megapixel 64 megapixel
Wide Camera - - - - 8 megapixel
Tele Camera - - - - -
Video Capture - QVGA (320 x 240) 1080p HD 720p HD 4K UHD
Front Camera - - 2 megapixel 2 megapixel 8 megapixel
Weight 3 oz
(85g)
4.2 oz
(119g)
4.76 oz
(135g)
5.26 oz
(149g)
7.76 oz
(220g)
Dimensions 3.43" x 1.81" x 0.91"
(87 x 46 x 23.1 mm)
4.09" x 1.98" x 0.71"
(104 x 50 x 18 mm)
5.09" x 2.57" x 0.43"
(129 x 65 x 10.8 mm)
5.57" x 2.78" x 0.43"
(141 x 71 x 11 mm)
6.64" x 3.07" x 0.38"
(169 x 78 x 9.8 mm)
Form Factor Clamshell Slide Slab Slab Slab
Platform / OS (proprietary) (proprietary) Android Android Android
Network Bands

GSM: 900, 1800, 1900

CDMA: 850, 1900

4G LTE: 4, 13

WCDMA: 1, 2, 5, 8

CDMA: 850, 1900

GSM: 850, 900, 1800, 1900

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

5G: 41, 78

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 18, 19, 20, 26, 34, 38, 40, 41

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

CDMA: 850, 1900

GSM: 850, 900, 1800, 1900

Data Technology GPRS EVDO r0 LTE (Cat 3) HSPA+ 21 NR (5G)
Features 
Fingerprint Reader - - - - Yes
Flashlight - - - - Yes
GPS / Location - Yes n/a n/a n/a
Accessibility
Adjustable Text Size - - n/a n/a n/a
Hearing Aid Compatible - Yes Yes Yes -
Multiple Languages Yes Yes n/a n/a n/a
TTY/TDD (Digital) - Yes Yes Yes -
Connectivity
Bluetooth - Yes Yes Yes Yes
Mobile Hotspot - - n/a n/a n/a
NFC - - Yes - -
USB - Yes Yes
Micro-USB
Yes
Micro-USB
Yes
USB Type C
Wi-Fi - - Yes
5 (802.11 a,ac,b,g,n)
Yes
4 (802.11 b,g,n)
Yes
6 (802.11 a,ac,ax,b,g,n)
Contacts
Picture ID Yes Yes n/a n/a n/a
Ringer ID Yes Yes n/a n/a n/a
Voice Dialing - Yes n/a n/a n/a
Customization
Custom Graphics Yes Yes n/a n/a n/a
Custom Ringtones Yes Yes n/a n/a n/a
Real-Music Ringers - Yes n/a n/a n/a
Data & Network
Data Tethering - Yes n/a n/a n/a
Dual-SIM - - - - Yes
WAP / Web Browser Yes Yes n/a n/a n/a
Input
Predictive Text Entry Yes Yes n/a n/a n/a
Side Keys Yes Yes Yes Yes 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
EMS / Picture Messaging Yes - n/a n/a n/a
Instant Messaging - - n/a n/a n/a
MMS Yes Yes n/a n/a n/a
Text Messaging Templates Yes Yes n/a n/a n/a
Music
FM Radio - - - Yes -
Headphone Jack (3.5mm) - - Yes Yes Yes
Music Player - Yes n/a n/a n/a
Stereo Speakers - - - Yes Yes
Photo & Video
Miracast - - Yes - -
TV Output - - - - Yes
Power
Fast Charging - - - - Yes
Productivity
Alarm Yes Yes n/a n/a n/a
Calculator Yes Yes n/a n/a n/a
Calendar Yes Yes n/a n/a n/a
To-Do List Yes - n/a n/a n/a
Voice Memo Yes - n/a n/a n/a
Software
BREW - Yes n/a n/a n/a
Games Yes Yes n/a n/a n/a
Java (J2ME) Yes - n/a n/a n/a
Voice
Headset Jack (2.5 mm) Yes Yes n/a n/a n/a
Speaker Phone Yes Yes Yes Yes Yes
  Samsung SGH-X640 Samsung Glyde U940 Motorola Moto X (Verizon, 1st gen.) Motorola Moto G (GSM, 2nd gen.) Nubia RedMagic 5S
  X > < X > < X > < X > < X

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

 
Phone Samsung SGH-X640 Samsung Glyde U940 Motorola Moto X (Verizon, 1st gen.) Motorola Moto G (GSM, 2nd gen.) Nubia RedMagic 5S

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