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Galaxy A51 vs iPhone 6S

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Galaxy A51

Starting at

£96.95£350.00 new
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iPhone 6S

Starting at

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

What's the difference between the Galaxy A51 and iPhone 6S?

Galaxy A51 vs iPhone 6S comes down to the chipset, RAM and battery. Refurbished, the iPhone 6S starts at £32.09, £64.86 less than the Galaxy A51. The Galaxy A51 is the newer model, released in 2019.

Refurbished from

£96.95£32.09

Chipset

Exynos 9611Apple A9 APL0898

RAM

4 GB2 GB

Battery

4000 mAh1715 mAh

Screen size

6.5 inch4.7 inch

Screen type

Super AMOLEDIPS LCD
  • Chipset: Exynos 9611 on the Galaxy A51, Apple A9 APL0898 on the iPhone 6S.
  • The Galaxy A51 has more RAM: 4 GB vs 2 GB.
  • The Galaxy A51 has a bigger battery: 4000 mAh vs 1715 mAh.

Galaxy A51 vs iPhone 6S specs

The Galaxy A51 and iPhone 6S differ in key areas that suit different needs. The Galaxy A51 has a larger 6.5 inch Super AMOLED screen with higher resolution, making it a good choice if you want a roomier display for videos or browsing. It also offers more RAM and higher megapixel cameras for sharper photos and smoother multitasking. The iPhone 6S has a smaller 4.7 inch IPS LCD screen and less RAM, which suits users who prefer a compact phone for everyday use. The Galaxy A51's bigger battery supports longer usage between charges, while the iPhone 6S is lighter and has several storage options down to 16GB. Both are unlocked and support 4G, so your choice depends on your priorities in screen size, camera, battery life, and storage.

Galaxy A51 vs iPhone 6S price

Galaxy A51 vs iPhone 6S battery life and software updates

Durability covers battery capacity, operating system, and other physical factors that influence daily use. These affect how long the phone lasts on a charge and the software experience you get.

Battery Capacity

The Galaxy A51 has a 4000 mAh battery, which suits users who want longer use between charges. The iPhone 6S has a 1715 mAh battery, which fits well for lighter daily use or shorter screen time before recharging.

Operating System

The Galaxy A51 runs on Android, offering a different app environment and customization options compared to the iPhone 6S, which runs on iOS. Your choice here depends on which ecosystem you prefer for apps and updates.

Battery

4000 mAh1715 mAh

Fast charging

15 WN/A

Foldable

NoNo

Software updates

EndedEnded Mar 2025, last iOS 15

Year of release

20192015

Galaxy A51 vs iPhone 6S performance

Performance influences how smoothly the phone runs apps and multitasks. RAM, chipset and storage capacity shape the experience for everyday use or heavier tasks.

RAM Size

The Galaxy A51 comes with 4 GB of RAM, which helps keep more apps open and supports smoother multitasking. The iPhone 6S has 2 GB of RAM, which is suited to simpler or lighter use with fewer apps active at once.

Chipset

The Galaxy A51 uses an Exynos 9611 chipset, while the iPhone 6S has an Apple A9 APL0898 chipset. Both provide adequate performance for everyday tasks, but the Galaxy A51's chipset is paired with more RAM.

Storage Options

The Galaxy A51 is available in 64GB and 128GB versions, which suits users needing more space for apps, photos, and media. The iPhone 6S offers 16GB, 32GB, and 64GB options, allowing for more choice if you want a smaller or moderate storage size.

Chipset

Exynos 9611Apple A9 APL0898

RAM

4 GB2 GB

Galaxy A51 vs iPhone 6S screen

Screen quality affects how you see content, from sharpness to colour and size. The differences here suit users with different viewing preferences.

Screen Size

The Galaxy A51 has a 6.5 inch screen, providing more room for watching videos, browsing, and gaming. The iPhone 6S has a 4.7 inch screen, which suits users who prefer a more compact phone that fits easily in one hand.

Resolution

The Galaxy A51's screen resolution is 1080 x 2400, delivering sharper images and clearer text across its larger display. The iPhone 6S has a 750 x 1334 resolution, which fits its smaller screen size and suits everyday use.

Screen Type

The Galaxy A51 features a Super AMOLED screen, known for vibrant colours and deep blacks, enhancing media and gaming experiences. The iPhone 6S uses an IPS LCD, offering reliable colour accuracy and viewing angles, suitable for general use.

Refresh rate

60 HzN/A

Resolution

1080 x 2400750 x 1334

Screen size

6.5 inch4.7 inch

Screen type

Super AMOLEDIPS LCD

Galaxy A51 vs iPhone 6S camera

Audiovisual features focus on camera quality, which is key for photos and videos, including selfies.

Front Camera

The Galaxy A51 has a 32 megapixel front camera, ideal for high-detail selfies and video calls. The iPhone 6S has a 5 megapixel front camera, suited to basic selfie and video needs.

Main Camera

The Galaxy A51 offers a 48 megapixel main camera, capturing more detail in photos. The iPhone 6S has a 12 megapixel main camera, which works well for everyday photography but with lower resolution.

Camera type

N/ASingle (1x)

Front camera

32 megapixels5 megapixels

Main camera

48 megapixels12 megapixels

Galaxy A51 vs iPhone 6S size and design

Miscellaneous specs include physical dimensions, SIM and memory options, and network compatibility, influencing daily convenience and usage.

SIM and Memory Card

The Galaxy A51 supports dual physical SIM cards and a microSDXC card slot for expandable storage, which suits users who need to manage two numbers or want more space. The iPhone 6S has a single physical SIM card and does not support microSD cards.

Weight and Size

The Galaxy A51 weighs 172 g and measures 158.5 mm in height, 73.6 mm wide, and 7.9 mm deep, making it a larger and heavier device. The iPhone 6S is lighter at 143 g and smaller with 138.3 mm height, 67.1 mm width, and 7.1 mm depth, fitting better in smaller pockets or hands.

Carrier and Network

Both phones are unlocked and support 4G networks, giving flexibility to use with various providers and reliable mobile data speeds.

Carrier compatibility

UnlockedUnlocked

Connector

N/ALightning + Jack 3.5mm

Depth

7.9 mm7.1 mm

Height

158.5 mm138.3 mm

Mobile network

4G4G

Release date

7 February 202025 September 2015

SD card slot

microSDXCNo

SIM card

Dual Physical SIMPhysical SIM

Weight

172 g143 g

Width

73.6 mm67.1 mm

Galaxy A51 or iPhone 6S: which should you buy?

Buy the Galaxy A51 if

  • you want more RAM (4 GB vs 2 GB)
  • you want a bigger battery (4000 mAh vs 1715 mAh)
  • you want a bigger screen (6.5 inch vs 4.7 inch)

Buy the iPhone 6S if

  • you want to spend less: it starts at £32.09, £64.86 less than the Galaxy A51
  • you want a lighter build (143 g vs 172 g)

What our customers say

Customers who chose the Galaxy A51 often mention its nearly new appearance and ample storage. Many appreciate its performance and interface, noting it works well for everyday use despite some mentioning battery life as shorter than desired. The larger screen and camera quality receive positive comments, with several users happy with how good the phone looks and performs after refurbishment. Some reports mention dirt or scratches on less well-maintained units, but many customers find the phone in good condition.

For the iPhone 6S, customers highlight its compact size and good condition, often describing it as feeling like a brand new phone. Battery health varies, with some noting it needs charging more often or has been replaced for better longevity. The camera and screen suit users looking for a simpler, lighter phone. Many users find it easy to use, especially for those who prefer iOS. Some mention the phone being a good choice for gifts or for users who want a smaller device.

Overall, the Galaxy A51 suits users wanting a larger, more powerful device with more storage and a vivid screen. The iPhone 6S fits those preferring a smaller, lighter phone with a simple interface and moderate storage options.

Galaxy A51 vs iPhone 6S FAQs

Galaxy A51 vs iPhone 6S comes down to the chipset, RAM and battery. Chipset: Exynos 9611 on the Galaxy A51, Apple A9 APL0898 on the iPhone 6S. The Galaxy A51 has more RAM: 4 GB vs 2 GB.

The iPhone 6S is cheaper refurbished, from £32.09 compared with £96.95 for the Galaxy A51.

The Galaxy A51 has a bigger battery: 4000 mAh vs 1715 mAh.

The Galaxy A51 has a higher-resolution main camera: 48 megapixels vs 12 megapixels.

The Galaxy A51 no longer gets updates. Updates for the iPhone 6S ended in Mar 2025. Its last version is iOS 15.

Refurbished, the Galaxy A51 comes in 64GB and 128GB, and the iPhone 6S in 16GB, 32GB and 64GB.

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