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Phone Pantech Matrix Pro C820 Samsung Galaxy S21 Audiovox CDM-8920 / PM8920 Google Pixel 3a XL Kyocera Torque / Torque XT
Current U.S. Carriers (none) Verizon (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size 2.4" diag.
4 : 3
6.2" diag.
20 : 9
? 6" diag.
18 : 9
4" diag.
5 : 3
Display Resolution & Type 240 x 320 pixels
(~167 ppi)
LCD (TFT/TFD)
1080 x 2400 pixels
(~424 ppi)
AMOLED
128 x 160 pixels
LCD (TFT/TFD)
1080 x 2160 pixels
(~402 ppi)
AMOLED
480 x 800 pixels
(~233 ppi)
LCD (TFT/TFD)
Display Refresh ? 120 Hz ? 60 Hz 60 Hz
Battery 1,320 mAh 4,000 mAh ? 3,700 mAh 2,500 mAh
Processor 528 MHz ARM 11 2.8 GHz Qualcomm Snapdragon 888 ? 2 GHz Qualcomm Snapdragon 670 1.2 GHz Qualcomm Snapdragon S4 Plus MSM8960
RAM ? 8 GB ? 4 GB 1 GB
Storage ? raw hardware 128 GB * ? raw hardware 64 GB 4 GB *
Main Camera 2 megapixel 12 megapixel 1 megapixel 12 megapixel 5 megapixel
Wide Camera - 12 megapixel - - -
Tele Camera - 64 megapixel - - -
Video Capture QCIF (176 x 144) 8K - 4K UHD 1080p HD
Front Camera - 10 megapixel - 8 megapixel 1 megapixel
Weight 5.34 oz
(151g)
6.03 oz
(171g)
3.88 oz
(110g)
5.89 oz
(167g)
5.94 oz
(168g)
Dimensions 4.2" x 2" x 0.9"
(107 x 51 x 22.9 mm)
5.97" x 2.8" x 0.31"
(152 x 71 x 7.9 mm)
3.4" x 1.85" x 0.9"
(86 x 47 x 22.9 mm)
6.3" x 3" x 0.3"
(160 x 76 x 7.6 mm)
5.06" x 2.96" x 0.51"
(129 x 75 x 13 mm)
Form Factor Slide Slab Clamshell Slab Slab
Platform / OS Windows Mobile Standard Android (proprietary) Android Android
Network Bands

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

5G: 2, 5, 12, 25, 30, 41, 66, 71, 77-C, 260, 261

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 29, 30, 38, 39, 40, 41, 46, 48, 66, 71

WCDMA: 1, 2, 4, 5, 8

CDMA: 800, 850, 1900

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

AMPS: 850

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 20, 25, 26, 28, 29, 30, 38, 40, 41, 66, 71

WCDMA: 1, 2, 4, 5, 8

CDMA: 800, 850, 1900

GSM: 850, 900, 1800, 1900

4G LTE: 25

CDMA: 800, 850, 1900

Data Technology HSDPA 3.6 NR (5G) 1xRTT LTE (Cat 11) LTE (Cat 3)
Features 
Barometer - Yes - Yes Yes
Fingerprint Reader - Yes
in-display (ultrasonic)
- Yes
stand-alone
-
Flashlight - Yes - Yes Yes
GPS / Location n/a n/a Yes n/a n/a
Ruggedized - - - - Yes
Water-Resistant - Yes
IPX8 (SCUBA)
- - Yes
IPX7 (snorkeling)
Accessibility
Adjustable Text Size n/a n/a - n/a n/a
Hearing Aid Compatible - Yes
M3, T3 (mostly tele-coil compatible)
- Yes
M3, T3 (mostly tele-coil compatible)
Yes
M4, T3 (mostly tele-coil compatible)
Multiple Languages n/a n/a Yes n/a n/a
TTY/TDD (Digital) Yes Yes Yes Yes Yes
Alerts
Extra Display - - Yes - -
Ringer Profiles Yes - - - -
Connectivity
Bluetooth Yes Yes - Yes Yes
Mobile Hotspot n/a n/a - n/a n/a
NFC - Yes - Yes Yes
USB Yes Yes
USB Type C
Yes Yes
USB Type C
Yes
Micro-USB
Wi-Fi - Yes
6 (802.11 a,ac,ax,b,g,n)
- Yes
5 (802.11 a,ac,b,g,n)
Yes
4 (802.11 b,g,n)
Contacts
Picture ID n/a n/a Yes n/a n/a
Ringer ID n/a n/a Yes n/a n/a
Voice Dialing n/a n/a Yes n/a n/a
Customization
Custom Graphics n/a n/a Yes n/a n/a
Custom Ringtones n/a n/a Yes n/a n/a
Real-Music Ringers n/a n/a - n/a n/a
Data & Network
Data Tethering n/a n/a Yes n/a n/a
WAP / Web Browser n/a n/a Yes n/a n/a
Input
Predictive Text Entry n/a n/a Yes n/a n/a
Side Keys Yes Yes - Yes Yes
Text Keyboard, Hardware Yes - - - -
Touch Screen - Yes
Capacitive
- Yes
Capacitive
Yes
Capacitive
Memory
Memory Card Slot Yes - - - Yes
Messaging
Email Client n/a n/a - n/a n/a
Instant Messaging n/a n/a - n/a n/a
MMS n/a n/a - n/a n/a
Text Messaging Templates n/a n/a Yes n/a n/a
Music
Headphone Jack (3.5mm) - - - Yes Yes
Music Player n/a n/a - n/a n/a
Stereo Speakers - Yes - Yes -
Photo & Video
TV Output - Yes - - -
Power
Fast Charging - Yes - Yes -
Wireless Charging - Yes - - -
Productivity
Alarm n/a n/a Yes n/a n/a
Calculator n/a n/a Yes n/a n/a
Calendar n/a n/a Yes n/a n/a
To-Do List n/a n/a - n/a n/a
Voice Memo n/a n/a Yes n/a n/a
Software
BREW n/a n/a Yes * n/a n/a
Games n/a n/a Yes n/a n/a
Java (J2ME) n/a n/a Yes * n/a n/a
Voice
Call Screening - - - Yes -
HD Voice - Yes - Yes Yes
Headset Jack (2.5 mm) n/a n/a Yes n/a n/a
Push-To-Talk - - - - Yes
Speaker Phone Yes Yes Yes Yes Yes
  * Some versions only
  Pantech Matrix Pro C820 Samsung Galaxy S21 Audiovox CDM-8920 / PM8920 Google Pixel 3a XL Kyocera Torque / Torque XT
  X > < X > < X > < X > < X

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

 
Phone Pantech Matrix Pro C820 Samsung Galaxy S21 Audiovox CDM-8920 / PM8920 Google Pixel 3a XL Kyocera Torque / Torque XT

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