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Phone Samsung SCH-A990 Samsung Galaxy S6 (GSM) TCL 20 Pro 5G Samsung SGH-X640 Kyocera DuraForce Pro 3
Current U.S. Carriers (none) (none) (none) (none) Verizon
Global Availability Released Released Released Released Released
Specifications 
Display Size ? 5.1" diag.
16 : 9
6.7" diag.
20 : 9
? 5.4" diag.
18 : 9
Display Resolution & Type 240 x 320 pixels
LCD (TFT/TFD)
1440 x 2560 pixels
(~576 ppi)
AMOLED
1080 x 2400 pixels
(~395 ppi)
AMOLED
128 x 160 pixels
LCD (TFT/TFD)
1080 x 2160 pixels
(~449 ppi)
AMOLED
Display Refresh ? 60 Hz 60 Hz ? 60 Hz
Battery 1,000 mAh 2,550 mAh 4,500 mAh 800 mAh 4,270 mAh
Processor ? 2.1 GHz Samsung Exynos 7420 2 GHz Qualcomm Snapdragon 750G ? 2.4 GHz Snapdragon 7 Gen 1
RAM ? 3 GB 6 GB ? 6 GB
Storage ? raw hardware 32 GB * 256 GB ? raw hardware 128 GB
Main Camera 3 megapixel 16 megapixel 48 megapixel Yes 16 megapixel
Wide Camera - - 16 megapixel - 16 megapixel
Tele Camera - - - - -
Video Capture ? 4K UHD 4K UHD - 4K UHD
Front Camera - 5 megapixel 32 megapixel - 8 megapixel
Weight 4.4 oz
(125g)
4.87 oz
(138g)
6.82 oz
(193g)
3 oz
(85g)
8.36 oz
(237g)
Dimensions 3.8" x 1.88" x 0.82"
(97 x 48 x 20.8 mm)
5.65" x 2.78" x 0.27"
(143 x 71 x 6.8 mm)
6.46" x 2.87" x 0.36"
(164 x 73 x 9.1 mm)
3.43" x 1.81" x 0.91"
(87 x 46 x 23.1 mm)
6.06" x 2.95" x 0.57"
(154 x 75 x 14.5 mm)
Form Factor Clamshell Slab Slab Clamshell Slab
Platform / OS (proprietary) Android Android (proprietary) Android
Network Bands

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

*

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

GSM: 900, 1800, 1900

5G: 2, 5, 48, 66, 77-A, 77-C, 78, 260, 261

4G LTE: 1, 2, 3, 4, 5, 7, 12, 13, 46, 48, 66

WCDMA: 1, 2, 5, 8

Data Technology EVDO r0 LTE (Cat 6) NR (5G) GPRS NR (5G)
Features 
Barometer - - Yes - Yes
Fingerprint Reader - Yes Yes
in-display (optical)
- Yes
stand-alone
Flashlight Yes Yes Yes - Yes
GPS / Location Yes n/a n/a - n/a
Ruggedized - - - - Yes
VR-ready - Yes - - -
Water-Resistant - - Yes
IPX2 (drip)
- Yes
IPX8 (SCUBA)
Accessibility
Hearing Aid Compatible Yes
M3 (mostly compatible)
Yes
M3, T3 (mostly tele-coil compatible)
Yes
M4, T4 (very tele-coil compatible)
- Yes
M4, T4 (very tele-coil compatible)
Multiple Languages Yes n/a n/a Yes n/a
TTY/TDD (Digital) Yes Yes Yes - Yes
Alerts
Extra Display Yes - - - -
Connectivity
Bluetooth Yes Yes Yes - Yes
Infrared (IR) - Yes Yes - -
MirrorLink - Yes - - -
NFC - Yes Yes - Yes
USB Yes Yes
Micro-USB
Yes
USB Type C
- Yes
USB Type C
Wi-Fi - Yes
5 (802.11 a,ac,b,g,n)
Yes
5 (802.11 a,ac,b,g,n)
- Yes
6E (802.11 a,ac,ax,b,g,n)
Contacts
Picture ID Yes n/a n/a Yes n/a
Ringer ID Yes n/a n/a Yes n/a
Voice Dialing Yes n/a n/a - n/a
Customization
Custom Graphics Yes n/a n/a Yes n/a
Custom Ringtones Yes n/a n/a Yes 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 n/a n/a Yes n/a
Input
Predictive Text Entry Yes n/a n/a Yes n/a
Side Keys Yes Yes Yes Yes Yes
Touch Screen - Yes
Capacitive
Yes
Capacitive
- Yes
Capacitive
Memory
Memory Card Slot Yes - Yes - Yes
Messaging
EMS / Picture Messaging Yes n/a n/a Yes n/a
MMS Yes n/a n/a Yes n/a
Text Messaging Templates Yes n/a n/a Yes n/a
Music
FM Radio - - Yes - -
Headphone Jack (3.5mm) - Yes Yes - -
Music Player Yes n/a n/a - n/a
Stereo Speakers Yes - - - Yes
Photo & Video
DLNA - Yes - - -
Miracast - Yes - - Yes
TV Output Yes Yes - - -
Power
Fast Charging - Yes Yes - Yes
Wireless Charging - Yes Yes - Yes
Productivity
Alarm Yes n/a n/a Yes n/a
Calculator Yes n/a n/a Yes n/a
Calendar Yes n/a n/a Yes n/a
To-Do List - n/a n/a Yes n/a
Voice Memo Yes n/a n/a Yes n/a
Software
BREW Yes n/a n/a - n/a
Games Yes n/a n/a Yes n/a
Java (J2ME) - n/a n/a Yes n/a
Voice
HD Voice - Yes Yes - Yes
Headset Jack (2.5 mm) - n/a n/a Yes n/a
Push-To-Talk - - - - Yes
Speaker Phone Yes Yes Yes Yes Yes
  Samsung SCH-A990 Samsung Galaxy S6 (GSM) TCL 20 Pro 5G Samsung SGH-X640 Kyocera DuraForce Pro 3
  X > < X > < X > < X > < X

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

 
Phone Samsung SCH-A990 Samsung Galaxy S6 (GSM) TCL 20 Pro 5G Samsung SGH-X640 Kyocera DuraForce Pro 3

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