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Phone Samsung SGH-X640 TCL 20 Pro 5G Motorola Defy (2010) Samsung Galaxy S6 (GSM)
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size ? 6.7" diag.
20 : 9
3.6" diag.
16 : 9
5.1" diag.
16 : 9
Display Resolution & Type 128 x 160 pixels
LCD (TFT/TFD)
1080 x 2400 pixels
(~395 ppi)
AMOLED
480 x 854 pixels
(~272 ppi)
LCD (TFT/TFD)
1440 x 2560 pixels
(~576 ppi)
AMOLED
Display Refresh ? 60 Hz 60 Hz 60 Hz
Battery 800 mAh 4,500 mAh 1,540 mAh 2,550 mAh
Processor ? 2 GHz Qualcomm Snapdragon 750G 800 MHz TI OMAP3610 2.1 GHz Samsung Exynos 7420
RAM ? 6 GB ? 3 GB
Storage ? raw hardware 256 GB ? raw hardware 32 GB *
Main Camera Yes 48 megapixel 5 megapixel 16 megapixel
Wide Camera - 16 megapixel - -
Tele Camera - - - -
Video Capture - 4K UHD ? 4K UHD
Front Camera - 32 megapixel - 5 megapixel
Weight 3 oz
(85g)
6.82 oz
(193g)
4.16 oz
(118g)
4.87 oz
(138g)
Dimensions 3.43" x 1.81" x 0.91"
(87 x 46 x 23.1 mm)
6.46" x 2.87" x 0.36"
(164 x 73 x 9.1 mm)
4.21" x 2.32" x 0.53"
(107 x 59 x 13.4 mm)
5.65" x 2.78" x 0.27"
(143 x 71 x 6.8 mm)
Form Factor Clamshell Slab Slab Slab
Platform / OS (proprietary) Android Android Android
Network Bands

GSM: 900, 1800, 1900

5G: 2, 5, 7, 41, 66, 71, 78

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 20, 25, 26, 28, 29, 30, 38, 40, 41, 48, 66, 71

WCDMA: 1, 2, 4, 5, 8

GSM: 850, 900, 1800, 1900

WCDMA: 1, 4, 5

GSM: 850, 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

*

Data Technology GPRS NR (5G) HSPA 7.2 LTE (Cat 6)
Features 
Barometer - Yes - -
Fingerprint Reader - Yes
in-display (optical)
- Yes
Flashlight - Yes - Yes
GPS / Location - n/a n/a n/a
Ruggedized - - Yes -
VR-ready - - - Yes
Water-Resistant - Yes
IPX2 (drip)
- -
Accessibility
Hearing Aid Compatible - Yes
M4, T4 (very tele-coil compatible)
- Yes
M3, T3 (mostly tele-coil compatible)
Multiple Languages Yes n/a n/a n/a
TTY/TDD (Digital) - Yes Yes Yes
Connectivity
Bluetooth - Yes Yes Yes
Infrared (IR) - Yes - Yes
MirrorLink - - - Yes
NFC - Yes - Yes
USB - Yes
USB Type C
Yes
Micro-USB
Yes
Micro-USB
Wi-Fi - Yes
5 (802.11 a,ac,b,g,n)
Yes
4 (802.11 b,g,n)
Yes
5 (802.11 a,ac,b,g,n)
Contacts
Picture ID Yes n/a n/a n/a
Ringer ID Yes n/a n/a n/a
Voice Dialing - n/a n/a n/a
Customization
Custom Graphics Yes n/a n/a n/a
Custom Ringtones Yes n/a n/a n/a
Real-Music Ringers - n/a n/a n/a
Data & Network
WAP / Web Browser Yes n/a n/a n/a
Input
Predictive Text Entry Yes n/a n/a n/a
Side Keys Yes Yes Yes Yes
Touch Screen - Yes
Capacitive
Yes
Capacitive
Yes
Capacitive
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 n/a n/a n/a
Text Messaging Templates Yes n/a n/a n/a
Music
FM Radio - Yes Yes -
Headphone Jack (3.5mm) - Yes Yes Yes
Music Player - n/a n/a n/a
Photo & Video
DLNA - - Yes Yes
Miracast - - - Yes
TV Output - - - Yes
Power
Fast Charging - Yes - Yes
Wireless Charging - Yes - Yes
Productivity
Alarm Yes n/a n/a n/a
Calculator Yes n/a n/a n/a
Calendar 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
Games 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 n/a n/a n/a
Speaker Phone Yes Yes Yes Yes
  Samsung SGH-X640 TCL 20 Pro 5G Motorola Defy (2010) Samsung Galaxy S6 (GSM)
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Samsung SGH-X640 TCL 20 Pro 5G Motorola Defy (2010) Samsung Galaxy S6 (GSM)

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