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Phone Pantech Matrix Pro C820 Motorola C333 (CDMA) HTC One M9 (CDMA) HTC Desire 555
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size 2.4" diag.
4 : 3
? 5" diag.
16 : 9
5" diag.
16 : 9
Display Resolution & Type 240 x 320 pixels
(~167 ppi)
LCD (TFT/TFD)
96 x 64 pixels
LCD (Grayscale)
1080 x 1920 pixels
(~441 ppi)
LCD (TFT/TFD)
720 x 1280 pixels
(~294 ppi)
LCD (TFT/TFD)
Display Refresh ? ? 60 Hz 60 Hz
Battery 1,320 mAh ? 2,840 mAh 2,200 mAh
Processor 528 MHz ARM 11 ? 2 GHz Qualcomm Snapdragon 810 (MSM8994) 1.1 GHz Qualcomm Snapdragon 210 (MSM8909)
RAM ? ? 3 GB 2 GB
Storage ? raw hardware ? raw hardware 32 GB 16 GB
Main Camera 2 megapixel - 20 megapixel 8 megapixel
Wide Camera - - - -
Tele Camera - - - -
Video Capture QCIF (176 x 144) - 4K UHD 720p HD
Front Camera - - 4 megapixel 5 megapixel
Weight 5.34 oz
(151g)
3.9 oz
(111g)
5.54 oz
(157g)
4.93 oz
(140g)
Dimensions 4.2" x 2" x 0.9"
(107 x 51 x 22.9 mm)
4.2" x 1.8" x 0.9"
(107 x 46 x 22.9 mm)
5.69" x 2.74" x 0.38"
(145 x 70 x 9.6 mm)
5.78" x 2.79" x 0.33"
(147 x 71 x 8.4 mm)
Form Factor Slide Slab Slab Slab
Platform / OS Windows Mobile Standard (proprietary) Android Android
Network Bands

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

4G LTE: 2, 4, 5, 13

WCDMA: 1, 2, 5, 8

CDMA: 850, 1900

GSM: 850, 900, 1800, 1900

*

4G LTE: 2, 4, 5, 12

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

Data Technology HSDPA 3.6 1xRTT LTE (Cat 9) LTE (Cat 4)
Features 
Flashlight - - Yes Yes
GPS / Location n/a Yes n/a n/a
Water-Resistant - - Yes
IPX3 (falling spray)
-
Accessibility
Adjustable Text Size n/a - n/a n/a
Hearing Aid Compatible - - Yes Yes *
Multiple Languages n/a Yes n/a n/a
TTY/TDD (Digital) Yes Yes Yes Yes
Alerts
Ringer Profiles Yes - - -
Connectivity
Bluetooth Yes - Yes Yes
MirrorLink - - Yes -
Mobile Hotspot n/a - n/a n/a
NFC - - Yes -
USB Yes Yes Yes
Micro-USB
Yes
Micro-USB
Wi-Fi - - Yes
5 (802.11 a,ac,b,g,n)
Yes
4 (802.11 b,g,n)
Contacts
Picture ID n/a - n/a n/a
Ringer ID n/a Yes n/a n/a
Voice Dialing n/a - n/a n/a
Customization
Changeable Body Plates - Yes - -
Custom Graphics n/a Yes n/a n/a
Custom Ringtones n/a Yes n/a n/a
Real-Music Ringers n/a - n/a n/a
Data & Network
Data Tethering n/a Yes n/a n/a
WAP / Web Browser n/a Yes n/a n/a
Input
Predictive Text Entry n/a Yes n/a n/a
Side Keys 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 n/a Yes n/a n/a
Instant Messaging n/a - n/a n/a
MMS n/a - n/a n/a
Text Messaging Templates n/a Yes n/a n/a
Music
FM Radio - - Yes Yes
Headphone Jack (3.5mm) - - Yes Yes
Music Player n/a - n/a n/a
Stereo Speakers - - Yes -
Photo & Video
DLNA - - Yes Yes
Miracast - - Yes Yes
TV Output - - Yes -
Power
Fast Charging - - Yes -
Productivity
Alarm n/a - n/a n/a
Calculator n/a Yes n/a n/a
Calendar n/a Yes n/a n/a
To-Do List n/a - n/a n/a
Voice Memo n/a - n/a n/a
Software
Games n/a Yes n/a n/a
Java (J2ME) n/a - n/a n/a
Voice
HD Voice - - Yes Yes
Speaker Phone Yes - Yes Yes
  * Some versions only
  Pantech Matrix Pro C820 Motorola C333 (CDMA) HTC One M9 (CDMA) HTC Desire 555
  X > < X > < X > < X

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

 
Phone Pantech Matrix Pro C820 Motorola C333 (CDMA) HTC One M9 (CDMA) HTC Desire 555

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