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Phone Samsung SGH-X640 Samsung Glyde U940 Samsung Galaxy S6 (GSM) TCL 20 XE Samsung Captivate Glide
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
5.1" diag.
16 : 9
6.5" diag.
20 : 9
4" diag.
5 : 3
Display Resolution & Type 128 x 160 pixels
LCD (TFT/TFD)
240 x 440 pixels
(~182 ppi)
LCD (TFT/TFD)
1440 x 2560 pixels
(~576 ppi)
AMOLED
720 x 1600 pixels
(~269 ppi)
LCD (TFT/TFD)
480 x 800 pixels
(~233 ppi)
AMOLED
Display Refresh ? ? 60 Hz 60 Hz 60 Hz
Battery 800 mAh 1,000 mAh 2,550 mAh 5,000 mAh 1,650 mAh
Processor ? ? 2.1 GHz Samsung Exynos 7420 2 GHz MediaTek Helio P22 (MT6762) 1 GHz Nvidia Tegra 2 AP20H
RAM ? ? 3 GB 3 GB 1 GB
Storage ? raw hardware ? raw hardware 32 GB * 32 GB 8 GB
Main Camera Yes 2 megapixel 16 megapixel 13 megapixel 8 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture - QVGA (320 x 240) 4K UHD 1080p HD 720p HD
Front Camera - - 5 megapixel 5 megapixel 1 megapixel
Weight 3 oz
(85g)
4.2 oz
(119g)
4.87 oz
(138g)
6.88 oz
(195g)
5.2 oz
(147g)
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)
5.65" x 2.78" x 0.27"
(143 x 71 x 6.8 mm)
6.48" x 2.95" x 0.35"
(165 x 75 x 8.9 mm)
4.88" x 2.55" x 0.51"
(124 x 65 x 13 mm)
Form Factor Clamshell Slide Slab Slab Slide
Platform / OS (proprietary) (proprietary) Android Android Android
Network Bands

GSM: 900, 1800, 1900

CDMA: 850, 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, 7, 12, 25, 26, 41, 66, 71

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

Data Technology GPRS EVDO r0 LTE (Cat 6) LTE (Cat 6) HSPA+ 21
Features 
Barometer - - - Yes -
Fingerprint Reader - - Yes Yes
stand-alone
-
Flashlight - - Yes Yes -
GPS / Location - Yes n/a n/a n/a
VR-ready - - Yes - -
Accessibility
Hearing Aid Compatible - Yes Yes Yes Yes
Multiple Languages Yes Yes n/a n/a n/a
TTY/TDD (Digital) - Yes Yes Yes Yes
Connectivity
Bluetooth - Yes Yes Yes Yes
Infrared (IR) - - Yes - -
MirrorLink - - Yes - -
Mobile Hotspot - - n/a n/a n/a
NFC - - Yes - -
USB - Yes Yes
Micro-USB
Yes
USB Type C
Yes
Micro-USB
Wi-Fi - - Yes
5 (802.11 a,ac,b,g,n)
Yes
5 (802.11 a,ac,b,g,n)
Yes
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
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 - - Yes
Touch Screen - Yes Yes Yes Yes
Memory
Memory Card Slot - Yes - 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
Headphone Jack (3.5mm) - - Yes Yes Yes
Music Player - Yes n/a n/a n/a
Photo & Video
DLNA - - Yes - Yes
Miracast - - Yes - -
TV Output - - Yes - Yes
Power
Fast Charging - - Yes Yes -
Wireless 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
HD Voice - - Yes Yes -
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 Samsung Galaxy S6 (GSM) TCL 20 XE Samsung Captivate Glide
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Samsung SGH-X640 Samsung Glyde U940 Samsung Galaxy S6 (GSM) TCL 20 XE Samsung Captivate Glide

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