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Phone Ericsson T66 Pantech Matrix Pro C820 Red Hydrogen One Google Pixel 3a XL Motorola EM330 / EM28
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size ? 2.4" diag.
4 : 3
5.7" diag.
16 : 9
6" diag.
18 : 9
1.8" diag.
4 : 3
Display Resolution & Type ? 240 x 320 pixels
(~167 ppi)
LCD (TFT/TFD)
1440 x 2560 pixels
(~515 ppi)
LCD (TFT/TFD)
1080 x 2160 pixels
(~402 ppi)
AMOLED
128 x 160 pixels
(~114 ppi)
LCD (TFT/TFD)
Display Refresh ? ? 60 Hz 60 Hz ?
Battery ? 1,320 mAh 4,510 mAh 3,700 mAh 940 mAh
Processor ? 528 MHz ARM 11 2.5 GHz Qualcomm Snapdragon 835 (MSM8998) 2 GHz Qualcomm Snapdragon 670 ?
RAM ? ? 6 GB 4 GB ?
Storage ? raw hardware ? raw hardware 128 GB * 64 GB ? raw hardware
Main Camera - 2 megapixel 12 megapixel 12 megapixel 1 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture - QCIF (176 x 144) 4K UHD 4K UHD ?
Front Camera - - 8 megapixel 8 megapixel -
Weight 2.08 oz
(59g)
5.34 oz
(151g)
9.63 oz
(273g)
5.89 oz
(167g)
3.17 oz
(90g)
Dimensions 3.62" x 1.61" x 0.69"
(92 x 41 x 17.5 mm)
4.2" x 2" x 0.9"
(107 x 51 x 22.9 mm)
6.54" x 3.28" x 0.39"
(166 x 83 x 10 mm)
6.3" x 3" x 0.3"
(160 x 76 x 7.6 mm)
3.71" x 1.95" x 0.68"
(94 x 50 x 17.4 mm)
Form Factor Slab Slide Slab Slab Clamshell
Platform / OS (proprietary) Windows Mobile Standard Android Android (proprietary)
Network Bands

GSM: 900, 1800, 1900

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 18, 19, 20, 25, 26, 28, 29, 30, 38, 39, 40, 41, 66

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

CDMA: 800, 850, 1900

GSM: 850, 900, 1800, 1900

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

GSM: 850, 1800, 1900

*

Data Technology - HSDPA 3.6 LTE (Cat 12) LTE (Cat 11) EDGE
Features 
Barometer - - - Yes -
Fingerprint Reader - - Yes
stand-alone
Yes
stand-alone
-
Flashlight - - Yes Yes -
GPS / Location - n/a n/a n/a -
Accessibility
Hearing Aid Compatible - - Yes Yes Yes
Multiple Languages Yes n/a n/a n/a Yes
TTY/TDD (Digital) - Yes Yes Yes Yes
Alerts
Extra Display - - - - Yes
Ringer Profiles Yes Yes - - -
Connectivity
Bluetooth - Yes Yes Yes Yes
NFC - - Yes Yes -
USB - Yes Yes
USB Type C
Yes
USB Type C
Yes
Mini-USB
Wi-Fi - - Yes
5 (802.11 a,ac,b,g,n)
Yes
5 (802.11 a,ac,b,g,n)
-
Contacts
Picture ID - n/a n/a n/a -
Ringer ID - n/a n/a n/a -
Voice Dialing - n/a n/a n/a -
Customization
Custom Graphics Yes n/a n/a n/a Yes
Custom Ringtones Yes n/a n/a n/a Yes
Real-Music Ringers - n/a n/a n/a Yes
Data & Network
Data Tethering - n/a n/a n/a -
WAP / Web Browser Yes n/a n/a n/a Yes
Input
Predictive Text Entry Yes n/a n/a n/a Yes
Side Keys Yes Yes Yes Yes Yes
Text Keyboard, Hardware - Yes - - -
Touch Screen - - 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 Yes
Instant Messaging - n/a n/a n/a -
MMS - n/a n/a n/a Yes
Text Messaging Templates Yes n/a n/a n/a Yes
Music
FM Radio - - Yes - Yes
Headphone Jack (3.5mm) - - Yes Yes Yes
Music Player - n/a n/a n/a Yes
Stereo Speakers - - Yes Yes -
Power
Fast Charging - - Yes Yes -
Productivity
Alarm Yes n/a n/a n/a Yes
Calculator Yes n/a n/a n/a Yes
Calendar Yes n/a n/a n/a Yes
To-Do List Yes n/a n/a n/a -
Voice Memo - n/a n/a n/a -
Software
Games Yes n/a n/a n/a Yes
Java (J2ME) - n/a n/a n/a Yes
Voice
Call Screening - - - Yes -
HD Voice - - Yes Yes -
Speaker Phone - Yes Yes Yes Yes
  Ericsson T66 Pantech Matrix Pro C820 Red Hydrogen One Google Pixel 3a XL Motorola EM330 / EM28
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Ericsson T66 Pantech Matrix Pro C820 Red Hydrogen One Google Pixel 3a XL Motorola EM330 / EM28

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