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Galaxy S6 vs iPhone 6S

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Galaxy S6

Starting at

£81.32£399.00 new
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iPhone 6S

Starting at

£32.09£149.00 new
See options
(102 reviews)
(507 reviews)

What's the difference between the Galaxy S6 and iPhone 6S?

Galaxy S6 vs iPhone 6S comes down to the chipset, RAM and battery. Refurbished, the iPhone 6S starts at £32.09, £49.23 less than the Galaxy S6.

Refurbished from

£81.32£32.09

Chipset

Exynos 7420 Octa (14 nm)Apple A9 APL0898

RAM

3 GB2 GB

Battery

2550 mAh1715 mAh

Screen size

5.1 inch4.7 inch

Screen type

Super AMOLEDIPS LCD
  • Chipset: Exynos 7420 Octa (14 nm) on the Galaxy S6, Apple A9 APL0898 on the iPhone 6S.
  • The Galaxy S6 has more RAM: 3 GB vs 2 GB.
  • The Galaxy S6 has a bigger battery: 2550 mAh vs 1715 mAh.

Galaxy S6 vs iPhone 6S specs

The Galaxy S6 and iPhone 6S were both released in 2015 but offer different experiences suited to different users. The Galaxy S6 features a larger, higher-resolution Super AMOLED screen and a bigger battery, making it suitable for those who value a vivid display and longer battery capacity. The iPhone 6S has a smaller screen with IPS LCD technology and offers more storage options, appealing to those who prefer a compact design and varied storage choices. Both phones have similar front camera resolutions, but the Galaxy S6 has a higher megapixel main camera for more detailed photos. Performance and memory differ slightly, with the Galaxy S6 providing more RAM and the iPhone 6S offering a different chipset and more storage sizes. Both run their respective operating systems and are unlocked for wide carrier compatibility.

Galaxy S6 vs iPhone 6S price

Galaxy S6 vs iPhone 6S battery life and software updates

Durability covers battery capacity, operating system, and physical features. Both devices share the same release year. Battery size and operating system type are key differences that affect daily use and user preference.

Battery Capacity

The Galaxy S6 has a 2550 mAh battery, which provides more capacity for longer use between charges. This suits users who need extended battery life for busy days or heavier phone use. The iPhone 6S has a 1715 mAh battery, which fits users who prefer a smaller device and manage power usage accordingly.

Operating System

The Galaxy S6 runs on Android, offering flexibility in app choices and customisation. The iPhone 6S uses iOS, known for its smooth integration with other Apple products and consistent user experience. Your choice depends on which operating system you prefer and what apps or services you use regularly.

Battery

2550 mAh1715 mAh

Foldable

NoNo

Software updates

Ended Jun 2018Ended Mar 2025, last iOS 15

Wireless charging

YesN/A

Year of release

20152015

Galaxy S6 vs iPhone 6S performance

Performance focuses on chipset, RAM, and storage options. Both devices have different processors and memory amounts, which influence multitasking and speed. Storage options vary, allowing you to pick a model that fits your needs.

Chipset and RAM

The Galaxy S6 is powered by the Exynos 7420 Octa chipset with 3 GB of RAM, supporting smooth multitasking and app performance. The iPhone 6S uses the Apple A9 chipset with 2 GB of RAM, which handles everyday tasks efficiently and supports iOS optimisation. If you run many apps at once, the Galaxy S6's higher RAM might be beneficial.

Storage Variety

The Galaxy S6 comes with 32GB of storage in our stock, suitable for standard app and media needs. The iPhone 6S offers 16GB, 32GB, and 64GB options, giving more flexibility if you want either a lower-priced or higher-capacity model. Choose the iPhone 6S if you want more storage choices to match your usage.

Chipset

Exynos 7420 Octa (14 nm)Apple A9 APL0898

RAM

3 GB2 GB

Galaxy S6 vs iPhone 6S screen

Screen quality differs mainly in size, resolution, and display technology. These factors affect viewing comfort, image sharpness, and colour vibrancy, important when watching videos or browsing.

Screen Size

The Galaxy S6 has a 5.1 inch screen, offering more space for videos, games, and reading. The iPhone 6S features a 4.7 inch screen, which suits users who prefer a more compact phone that fits easily in one hand or pocket.

Resolution and Display Type

With a resolution of 1440 x 2560 pixels and a Super AMOLED screen, the Galaxy S6 delivers sharp images and vibrant colours, ideal for media lovers. The iPhone 6S has a 750 x 1334 resolution with an IPS LCD screen, providing accurate colours and good brightness, which works well for everyday viewing and natural tones.

Resolution

1440 x 2560750 x 1334

Screen size

5.1 inch4.7 inch

Screen type

Super AMOLEDIPS LCD

Galaxy S6 vs iPhone 6S camera

Audiovisual features include front and main cameras, important for selfies and photos. Both devices share the same front camera resolution but differ in their main camera megapixels.

Front Camera

Both the Galaxy S6 and iPhone 6S have 5 megapixel front cameras, suitable for clear selfies and video calls. Either phone will deliver similar quality for these uses.

Main Camera

The Galaxy S6 has a 16 megapixel main camera, capturing more detail in photos, which can benefit users who enjoy photography or want sharper images. The iPhone 6S comes with a 12 megapixel main camera, providing good photo quality for everyday snapshots.

Camera type

N/ASingle (1x)

Front camera

5 megapixels5 megapixels

Main camera

16 megapixels12 megapixels

Galaxy S6 vs iPhone 6S size and design

Miscellaneous specs cover physical dimensions, weight, network compatibility, and other features. These details influence how the phone feels in your hand and how it fits your daily routine.

Size and Weight

The Galaxy S6 measures 143.4 mm tall, 70.5 mm wide, and 6.8 mm deep, weighing 138 g. The iPhone 6S is 138.3 mm tall, 67.1 mm wide, and 7.1 mm deep, weighing 143 g. The Galaxy S6 is slightly lighter and has a slightly different shape, which may affect comfort depending on your preference for phone size.

Carrier and Network

Both phones are unlocked and support 4G networks, giving you freedom to choose your mobile provider and enjoy fast data speeds where available.

SIM and Storage Expansion

Both devices use a physical SIM card and do not support SD card slots for storage expansion. Storage capacity is fixed by the model you choose.

Carrier compatibility

UnlockedUnlocked

Connector

N/ALightning + Jack 3.5mm

Depth

6.8 mm7.1 mm

Height

143.4 mm138.3 mm

Mobile network

4G4G

Release date

10 April 201525 September 2015

SD card slot

NoNo

SIM card

Physical SIMPhysical SIM

Weight

138 g143 g

Width

70.5 mm67.1 mm

Galaxy S6 or iPhone 6S: which should you buy?

Buy the Galaxy S6 if

  • you want more RAM (3 GB vs 2 GB)
  • you want a bigger battery (2550 mAh vs 1715 mAh)
  • you want a bigger screen (5.1 inch vs 4.7 inch)

Buy the iPhone 6S if

  • you want to spend less: it starts at £32.09, £49.23 less than the Galaxy S6

What our customers say

Customers who bought the Galaxy S6 often mention it looks like new and works well after setup. Many are pleased with the phone itself, highlighting good condition and ease of use once the right charger is used. Some note issues with the phone being locked to a network or receiving the wrong charger, which affected their experience. However, users who received properly unlocked phones appreciate the screen size and performance.

For the iPhone 6S, customers frequently praise the condition, describing it as immaculate or like new. The phone suits those wanting a simple, good quality smartphone with a compact size. Battery condition varies in reviews but many find it lasts all day and performs well for everyday use. Users appreciate the phone's size and feel, calling it a good upgrade or replacement. Some report excellent battery health and smooth performance after refurbishment.

The Galaxy S6 suits buyers who prefer a larger screen and more RAM for multitasking, while the iPhone 6S appeals to those valuing compact size, multiple storage options, and iOS. Both are reliable refurbished choices depending on your priorities.

Galaxy S6 vs iPhone 6S FAQs

Galaxy S6 vs iPhone 6S comes down to the chipset, RAM and battery. Chipset: Exynos 7420 Octa (14 nm) on the Galaxy S6, Apple A9 APL0898 on the iPhone 6S. The Galaxy S6 has more RAM: 3 GB vs 2 GB.

The iPhone 6S is cheaper refurbished, from £32.09 compared with £81.32 for the Galaxy S6.

The Galaxy S6 has a bigger battery: 2550 mAh vs 1715 mAh.

The Galaxy S6 has a higher-resolution main camera: 16 megapixels vs 12 megapixels.

Updates for the Galaxy S6 ended in Jun 2018. Updates for the iPhone 6S ended in Mar 2025. Its last version is iOS 15.

Refurbished, the Galaxy S6 comes in 32GB, and the iPhone 6S in 16GB, 32GB and 64GB.

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