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Chipset and software

Platform Samsung Exynos 7420
Processor Octacore, 4x ARM A57 cores @ 2.1GHz, 4x ARM A53 cores @ 1.5GHz.
Process size 14nm
GPU ARM Mali-T760MP8
RAM 3GB LP-DDR4
Cellular modem Shannon 303 aka "Exynos Modem 303"
Storage 32/64/128GB (UFS 2.0)
Android version shipped 5.0.2 "Lollipop"

Announcement and release dates

Announcement date March 1st, 2015
Initial retail availability April 10th, 2015

Display

Dimensions 5.1" 1440x2560 "Quad-HD" / QHD
Panel type Super AMOLED
Display protection Corning Gorilla Glass 4

Power, data, and ports

Connector microUSB, USB version 2.0
Battery 2550mAh, non-removable
Quick charging Samsung Adaptive Fast Charging @ up to 15 Watts (works w/ Qualcomm Quick Charge)
Wireless charging Qi (WPC) and PMA (Rezence)
SIM type Nano (tool required for removal)
microSD slot No

Wireless connectivity

Wi-Fi a/b/g/n/ac 2.4-5GHz with MIMO
Bluetooth Version 4.1 w/ LE
Mobile data 2G, 3G, and 4G LTE (support varies by market)
Voice over LTE Support varies by market

Camera (rear)

Max still resolution 16MP
Video resolution 480p-2160p (4K), 30-120FPS (120FPS only available at 720p, 60FPS only at 1080p)
Flash Single LED
HDR Stills and video

Camera (front)

Max still resolution 5MP
Flash No
Video resolution 480p-1440p (QHD) @ 30FPS
HDR Stills only

Other features

NFC Yes
Infrared Yes
Fingerprint scanner On home button, touch-style
Heartbeat monitor Near camera flash

Dimensions

Weight 138g (S6), 132g (S6 Edge)
Height/width 143.4mm/70.5mm (S6), 142.1mm/70.1mm (S6 Edge)
Thickness 6.8mm (S6), 7.0mm (S6 Edge) (excluding camera bulge)

History

The Samsung Galaxy S6 was introduced by Samsung on March 1st, 2015. It marks the sixth generation of Samsung's Galaxy S line of Android smartphones. The Galaxy S6 was released to retail on April 10th of the same year in 20 initial launch countries. Other countries followed. It proceeds the Galaxy S5, launched in early 2014

The Galaxy S6 is offered in two variants: the standard S6 and the S6 Edge, with the only major difference being the shape of the display (the S6 Edge is curved). Both were offered in a variety of colors (availability depending on market) and with storage ranging from 32GB up to 128GB.

The Galaxy S6 marks a substantial change in design language and materials for Samsung, with the phone being made primarily of various metals and glass. Previous iterations were predominantly plastic. The Galaxy S6 does not feature a removable battery, and also lacks a microSD card slot for expandable storage - capabilities found on every previous Galaxy S phone.

Unlike many earlier Galaxy phones, Samsung chose to utilize the same system-on-a-chip for all Galaxy S6 and S6 Edge models across the world, sourced from its own in-house Exynos brand. The Galaxy S6 and S6 Edge are among the most popular smartphones Samsung has ever built, and perhaps more than any other Samsung smartphone at the time of their release represent a continued effort by the company to use as many homegrown components as possible.

The Samsung-designed chipset, modem, display, camera (though some used Sony sensors), memory, and storage offer a level of smartphone design and engineering integration rarely found in the industry.