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Phone Pantech Matrix Pro C820 Siemens CX75 Red Hydrogen One Kyocera 1155
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Not yet released Released Released
Specifications 
Display Size 2.4" diag.
4 : 3
? 5.7" diag.
16 : 9
?
Display Resolution & Type 240 x 320 pixels
(~167 ppi)
LCD (TFT/TFD)
132 x 176 pixels
LCD (TFT/TFD)
1440 x 2560 pixels
(~515 ppi)
LCD (TFT/TFD)
?
Display Refresh ? ? 60 Hz ?
Battery 1,320 mAh 750 mAh 4,510 mAh 975 mAh
Processor 528 MHz ARM 11 ? 2.5 GHz Qualcomm Snapdragon 835 (MSM8998) ?
RAM ? ? 6 GB ?
Storage ? raw hardware ? raw hardware 128 GB * ? raw hardware
Main Camera 2 megapixel 1 megapixel 12 megapixel -
Wide Camera - - - -
Tele Camera - - - -
Video Capture QCIF (176 x 144) ? 4K UHD -
Front Camera - - 8 megapixel -
Weight 5.34 oz
(151g)
3.46 oz
(98g)
9.63 oz
(273g)
4.34 oz
(123g)
Dimensions 4.2" x 2" x 0.9"
(107 x 51 x 22.9 mm)
4.33" x 1.88" x 0.74"
(110 x 48 x 18.8 mm)
6.54" x 3.28" x 0.39"
(166 x 83 x 10 mm)
4.72" x 1.89" x 0.95"
(120 x 48 x 24.1 mm)
Form Factor Slide Slab Slab Slab
Platform / OS Windows Mobile Standard (proprietary) Android (proprietary)
Network Bands

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

GSM: 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

CDMA: 850, 1900

AMPS: 850

Data Technology HSDPA 3.6 GPRS LTE (Cat 12) -
Features 
Fingerprint Reader - - Yes
stand-alone
-
Flashlight - - Yes -
GPS / Location n/a - n/a -
Accessibility
Hearing Aid Compatible - - Yes -
Multiple Languages n/a Yes n/a Yes
TTY/TDD (Digital) Yes - Yes -
Alerts
Ringer Profiles Yes Yes - -
Connectivity
Bluetooth Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
-
Infrared (IR) - Yes - -
NFC - - Yes -
USB Yes Yes Yes
USB Type C
-
Wi-Fi - - Yes
5 (802.11 a,ac,b,g,n)
-
Contacts
Picture ID n/a Yes n/a -
Ringer ID n/a Yes n/a -
Voice Dialing n/a - n/a -
Customization
Custom Graphics n/a Yes n/a -
Custom Ringtones n/a Yes n/a -
Real-Music Ringers n/a - n/a -
Data & Network
Data Tethering n/a Yes n/a -
WAP / Web Browser n/a Yes n/a -
Input
Predictive Text Entry n/a Yes n/a -
Side Keys Yes Yes Yes -
Text Keyboard, Hardware Yes - - -
Touch Screen - - Yes -
Memory
Memory Card Slot Yes Yes Yes -
Messaging
Email Client n/a Yes n/a -
EMS / Picture Messaging n/a Yes n/a -
Instant Messaging n/a - n/a -
MMS n/a Yes n/a -
Text Messaging Templates n/a - n/a Yes
Music
FM Radio - - Yes -
Headphone Jack (3.5mm) - - Yes -
Music Player n/a Yes n/a -
Stereo Speakers - - Yes -
Power
Fast Charging - - Yes -
Productivity
Alarm n/a Yes n/a Yes
Calculator n/a Yes n/a Yes
Calendar n/a Yes n/a -
To-Do List n/a Yes n/a -
Voice Memo n/a Yes n/a -
Software
Games n/a Yes n/a Yes
Java (J2ME) n/a Yes n/a -
Voice
HD Voice - - Yes -
Headset Jack (2.5 mm) n/a - n/a Yes
Push-To-Talk - Yes - -
Speaker Phone Yes Yes Yes -
  Pantech Matrix Pro C820 Siemens CX75 Red Hydrogen One Kyocera 1155
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Phone Pantech Matrix Pro C820 Siemens CX75 Red Hydrogen One Kyocera 1155

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