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Phone Samsung Galaxy S6 (GSM) Samsung M520 Siemens A56 / A56i Samsung SGH-A157 Samsung Wafer R510
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size 5.1" diag.
16 : 9
2.1" diag.
4 : 3
? 1.8" diag.
4 : 3
1.9" diag.
4 : 3
Display Resolution & Type 1440 x 2560 pixels
(~576 ppi)
AMOLED
176 x 220 pixels
(~134 ppi)
LCD (TFT/TFD)
101 x 64 pixels 128 x 160 pixels
(~116 ppi)
LCD (TFT/TFD)
220 x 176 pixels
(~148 ppi)
LCD (TFT/TFD)
Display Refresh 60 Hz ? ? ? ?
Battery 2,550 mAh ? 700 mAh 800 mAh 800 mAh
Processor 2.1 GHz Samsung Exynos 7420 ? ? ? ?
RAM 3 GB ? ? ? ?
Storage 32 GB * ? raw hardware ? raw hardware 256 MB ? raw hardware
Main Camera 16 megapixel 1 megapixel - - 1 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture 4K UHD ? - - ?
Front Camera 5 megapixel - - - -
Weight 4.87 oz
(138g)
2.75 oz
(78g)
3 oz
(85g)
2.99 oz
(85g)
2.47 oz
(70g)
Dimensions 5.65" x 2.78" x 0.27"
(143 x 71 x 6.8 mm)
4.01" x 2.04" x 0.5"
(102 x 52 x 12.7 mm)
4" x 1.7" x 0.8"
(102 x 43 x 20.3 mm)
3.83" x 1.84" x 0.65"
(97 x 47 x 16.5 mm)
4.45" x 1.97" x 0.33"
(113 x 50 x 8.4 mm)
Form Factor Slab Slide Slab Clamshell Slab
Platform / OS Android (proprietary) (proprietary) (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

*

CDMA: 850, 1900

GSM: 850, 1900

WCDMA: 2, 5

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

Data Technology LTE (Cat 6) EVDO r0 - ? EVDO r0
Features 
Fingerprint Reader Yes - - - -
Flashlight Yes - - - -
GPS / Location n/a Yes Yes Yes Yes
VR-ready Yes - - - -
Accessibility
Adjustable Text Size n/a - - Yes -
Hearing Aid Compatible Yes Yes - Yes Yes
Multiple Languages n/a Yes - Yes Yes
TTY/TDD (Digital) Yes Yes Yes Yes Yes
Alerts
Ringer Profiles - - Yes Yes -
Connectivity
Bluetooth Yes
Classic Audio
Yes
Classic Audio
-
-
Yes
Classic Audio
Infrared (IR) Yes - - - -
MirrorLink Yes - - - -
NFC Yes - - - -
USB Yes
Micro-USB
Yes - Yes
Micro-USB
-
Wi-Fi Yes
5 (802.11 a,ac,b,g,n)
- - - -
Contacts
Picture ID n/a Yes Yes Yes Yes
Ringer ID n/a Yes Yes Yes -
Voice Dialing n/a Yes - - Yes
Customization
Changeable Body Plates - - Yes - -
Custom Graphics n/a Yes Yes Yes Yes
Custom Ringtones n/a Yes Yes Yes Yes
Real-Music Ringers n/a - - Yes -
Data & Network
Data Tethering n/a Yes - - -
WAP / Web Browser n/a Yes Yes Yes Yes
Input
Predictive Text Entry n/a Yes Yes Yes Yes
Side Keys Yes Yes - - Yes
Touch Screen Yes - - - -
Memory
Memory Card Slot - Yes - - Yes
Messaging
EMS / Picture Messaging n/a - Yes - -
MMS n/a - - Yes Yes
Text Messaging Templates n/a Yes - Yes -
Music
Headphone Jack (3.5mm) Yes - - - -
Music Player n/a Yes - - Yes
Stereo Speakers - - - - Yes
Photo & Video
DLNA Yes - - - -
Miracast Yes - - - -
TV Output Yes - - - -
Power
Fast Charging Yes - - - -
Wireless Charging Yes - - - -
Productivity
Alarm n/a Yes Yes Yes Yes
Calculator n/a Yes Yes Yes Yes
Calendar n/a Yes - Yes Yes
To-Do List n/a Yes - Yes -
Voice Memo n/a Yes - Yes Yes
Software
BREW n/a - - - Yes
Games n/a Yes Yes - Yes
Java (J2ME) n/a Yes - - -
Voice
HD Voice Yes - - - -
Speaker Phone Yes Yes - Yes Yes
  Samsung Galaxy S6 (GSM) Samsung M520 Siemens A56 / A56i Samsung SGH-A157 Samsung Wafer R510
  X > < X > < X > < X > < X

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

 
Phone Samsung Galaxy S6 (GSM) Samsung M520 Siemens A56 / A56i Samsung SGH-A157 Samsung Wafer R510

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