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Phone Samsung Galaxy S6 (GSM) ZTE Z222 / Z223 Red Hydrogen One Sanyo SCP-2400 Siemens M75
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Not yet released
Specifications 
Display Size 5.1" diag.
16 : 9
2" diag.
4 : 3
5.7" diag.
16 : 9
? ?
Display Resolution & Type 1440 x 2560 pixels
(~576 ppi)
AMOLED
176 x 220 pixels
(~141 ppi)
LCD (TFT/TFD)
1440 x 2560 pixels
(~515 ppi)
LCD (TFT/TFD)
128 x 160 pixels
LCD (STN)
132 x 176 pixels
LCD (TFT/TFD)
Display Refresh 60 Hz ? 60 Hz ? ?
Battery 2,550 mAh 900 mAh 4,510 mAh ? 750 mAh
Processor 2.1 GHz Samsung Exynos 7420 QSC6270 2.5 GHz Qualcomm Snapdragon 835 (MSM8998) ? ?
RAM 3 GB 64 MB 6 GB ? ?
Storage 32 GB * 128 MB 128 GB * ? raw hardware ? raw hardware
Main Camera 16 megapixel Yes 12 megapixel - 1 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture 4K UHD ? 4K UHD - ?
Front Camera 5 megapixel - 8 megapixel - -
Weight 4.87 oz
(138g)
3.24 oz
(92g)
9.63 oz
(273g)
3.5 oz
(99g)
3.88 oz
(110g)
Dimensions 5.65" x 2.78" x 0.27"
(143 x 71 x 6.8 mm)
3.76" x 1.92" x 0.73"
(96 x 49 x 18.5 mm)
6.54" x 3.28" x 0.39"
(166 x 83 x 10 mm)
3.31" x 1.83" x 1.01"
(84 x 46 x 25.7 mm)
4.35" x 2.03" x 0.82"
(110 x 52 x 20.8 mm)
Form Factor Slab Clamshell Slab Clamshell Slab
Platform / OS Android (proprietary) Android (proprietary) (proprietary)
Network Bands

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 29, 30

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

*

WCDMA: 2, 5

GSM: 850, 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

GSM: 900, 1800, 1900

Data Technology LTE (Cat 6) HSDPA 3.6 LTE (Cat 12) 1xRTT GPRS
Features 
Fingerprint Reader Yes - Yes
stand-alone
- -
Flashlight Yes - Yes - -
GPS / Location n/a - n/a Yes -
Ruggedized - - - - Yes
VR-ready Yes - - - -
Accessibility
Hearing Aid Compatible Yes Yes Yes Yes -
Multiple Languages n/a Yes n/a Yes Yes
TTY/TDD (Digital) Yes Yes Yes Yes -
Alerts
Extra Display - Yes - Yes -
Ringer Profiles - Yes - - Yes
Connectivity
Bluetooth Yes Yes Yes - Yes
Infrared (IR) Yes - - - Yes
MirrorLink Yes - - - -
NFC Yes - Yes - -
USB Yes
Micro-USB
Yes
Micro-USB
Yes
USB Type C
Yes Yes
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 Yes n/a Yes Yes
Ringer ID n/a Yes n/a Yes Yes
Voice Dialing n/a - n/a Yes -
Customization
Custom Graphics n/a Yes n/a Yes Yes
Custom Ringtones n/a Yes n/a Yes Yes
Real-Music Ringers n/a Yes n/a - -
Data & Network
Data Tethering n/a - n/a Yes Yes
WAP / Web Browser n/a Yes n/a Yes Yes
Input
Predictive Text Entry n/a Yes n/a Yes Yes
Side Keys Yes Yes Yes Yes Yes
Touch Screen Yes - Yes - -
Memory
Memory Card Slot - - Yes - Yes
Messaging
Email Client n/a Yes n/a - Yes
EMS / Picture Messaging n/a - n/a - Yes
MMS n/a Yes n/a - Yes
Text Messaging Templates n/a Yes n/a Yes -
Music
FM Radio - Yes * Yes - -
Headphone Jack (3.5mm) Yes - Yes - -
Music Player n/a - n/a - Yes
Stereo Speakers - - Yes - -
Photo & Video
DLNA Yes - - - -
Miracast Yes - - - -
TV Output Yes - - - -
Power
Fast Charging Yes - Yes - -
Wireless Charging Yes - - - -
Productivity
Alarm n/a Yes n/a Yes Yes
Calculator n/a Yes n/a Yes Yes
Calendar n/a Yes n/a Yes Yes
To-Do List n/a - n/a - Yes
Voice Memo n/a Yes n/a Yes Yes
Software
Games n/a Yes n/a Yes Yes
Java (J2ME) n/a Yes n/a Yes Yes
Voice
Call Screening - - - Yes -
HD Voice Yes - Yes - -
Headset Jack (2.5 mm) n/a - n/a Yes -
Push-To-Talk - - - Yes Yes
Speaker Phone Yes Yes Yes Yes Yes
  * Some versions only
  Samsung Galaxy S6 (GSM) ZTE Z222 / Z223 Red Hydrogen One Sanyo SCP-2400 Siemens M75
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Samsung Galaxy S6 (GSM) ZTE Z222 / Z223 Red Hydrogen One Sanyo SCP-2400 Siemens M75

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