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Galaxy A51 vs iPhone 7

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Galaxy A51

Starting at

£96.95£350.00 new
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iPhone 7

Starting at

£66.24£179.00 new
See options
(185 reviews)
(699 reviews)

What's the difference between the Galaxy A51 and iPhone 7?

Galaxy A51 vs iPhone 7 comes down to the chipset, RAM and battery. Refurbished, the iPhone 7 starts at £66.24, £30.71 less than the Galaxy A51. The Galaxy A51 is the newer model, released in 2019.

Refurbished from

£96.95£66.24

Chipset

Exynos 9611Apple A10 Fusion (16 nm)

RAM

4 GB2 GB

Battery

4000 mAh1960 mAh

Screen size

6.5 inch4.7 inch

Screen type

Super AMOLEDRetina IPS LCD
  • Chipset: Exynos 9611 on the Galaxy A51, Apple A10 Fusion (16 nm) on the iPhone 7.
  • The Galaxy A51 has more RAM: 4 GB vs 2 GB.
  • The Galaxy A51 has a bigger battery: 4000 mAh vs 1960 mAh.

Galaxy A51 vs iPhone 7 specs

The Galaxy A51 and iPhone 7 offer distinct choices depending on your needs. The Galaxy A51 features a larger, higher resolution Super AMOLED screen and more RAM, suited to those who want a spacious display and smoother multitasking. It also has bigger batteries and dual SIM support, which benefits users needing longer battery life and flexibility with carriers. The iPhone 7 has a smaller, lower resolution Retina IPS LCD screen with less RAM but offers a compact design that fits easily in one hand. Both phones have 4G connectivity and unlocked carriers. Camera resolution is higher on the Galaxy A51 for both front and main cameras, ideal for detailed photos. Storage options vary, with the Galaxy A51 offering up to 128GB and expandable memory, while the iPhone 7 goes up to 128GB without expansion.

Galaxy A51 vs iPhone 7 price

Galaxy A51 vs iPhone 7 battery life and software updates

Their batteries and operating systems differ.

Battery Capacity

The Galaxy A51 has a 4000 mAh battery, which is larger and can support longer use between charges. This suits users who need the phone to last through a full day of heavy use. The iPhone 7's 1960 mAh battery is smaller, fitting users who prefer a lighter phone and typically use their device with charging opportunities during the day.

Operating System

The Galaxy A51 runs on Android, offering a different app ecosystem and interface style compared to the iPhone 7, which runs on iOS. Your choice depends on which operating system you prefer or are familiar with.

Update Compatibility

This means that neither phone will receive new features or security updates from their OS providers.

Battery

4000 mAh1960 mAh

Fast charging

15 WN/A

Foldable

NoNo

Ip rating

N/AIP67

Software updates

EndedEnded Mar 2025, last iOS 15

Year of release

20192016

Galaxy A51 vs iPhone 7 performance

Performance depends on chipset, RAM, and storage capacity. These influence how smoothly the device runs apps, manages multitasking, and stores data.

Chipset and RAM

The Galaxy A51 comes with an Exynos 9611 chipset and 4 GB of RAM, which allows for more apps to stay active simultaneously and can improve multitasking performance. The iPhone 7 has an Apple A10 Fusion chipset with 2 GB of RAM, which supports everyday tasks well and suits users with simpler app needs.

Storage Options

Galaxy A51 models stocked here come in 64GB and 128GB sizes, with the added benefit of microSDXC support for expandable storage. The iPhone 7 offers 32GB and 128GB storage options but does not support memory expansion. If you need more storage flexibility, the Galaxy A51 may be preferable.

Chipset

Exynos 9611Apple A10 Fusion (16 nm)

RAM

4 GB2 GB

Galaxy A51 vs iPhone 7 screen

Screen size, resolution, and type influence viewing experience. Both phones have a 60 Hz refresh rate, but screen dimensions and display technology vary.

Screen Size and Resolution

The Galaxy A51 has a 6.5 inch screen with a resolution of 1080 x 2400, providing a large and sharp display that is well suited for watching videos and browsing. The iPhone 7 features a 4.7 inch screen with 750 x 1334 resolution, which makes it compact and easier to use with one hand.

Screen Type

The Galaxy A51 uses a Super AMOLED screen, delivering vibrant colours and deep blacks. The iPhone 7 has a Retina IPS LCD screen, known for accurate colour reproduction and consistent brightness. Your preference may depend on whether you prioritise vivid display or natural colour tones.

Refresh rate

60 Hz60 Hz

Resolution

1080 x 2400750 x 1334

Screen size

6.5 inch4.7 inch

Screen type

Super AMOLEDRetina IPS LCD

Galaxy A51 vs iPhone 7 camera

Camera capabilities matter for photo and video quality, especially the front and main cameras.

Front Camera Resolution

The Galaxy A51's 32 megapixels front camera is ideal for capturing detailed selfies and video calls with high definition. The iPhone 7's 7 megapixels front camera suits users who want good quality selfies but do not require very high resolution.

Main Camera Resolution

With a 48 megapixels main camera, the Galaxy A51 is designed to capture detailed and sharp photos, which benefits users who enjoy photography or want clearer images. The iPhone 7's 12 megapixels main camera produces good quality photos suitable for everyday use and social media sharing.

Front camera

32 megapixels7 megapixels

Main camera

48 megapixels12 megapixels

Galaxy A51 vs iPhone 7 size and design

Additional features like SIM options, network compatibility, and device dimensions influence convenience and usability.

Carrier and SIM Options

Both devices are unlocked and support 4G networks. The Galaxy A51 offers dual physical SIM slots, which is useful if you want to use two phone numbers or carriers simultaneously. The iPhone 7 uses a single physical SIM.

Expandable Storage

The Galaxy A51 supports microSDXC cards, allowing you to increase your storage space beyond the built-in capacity. The iPhone 7 does not support memory expansion.

Device Size and Weight

The Galaxy A51 measures 158.5 mm in height, 73.6 mm in width, and weighs 172 g, making it larger and heavier, which may suit users who prefer a bigger screen and don't mind the size. The iPhone 7 is smaller at 138.3 mm height, 67.1 mm width, and weighs 138 g, fitting comfortably in smaller hands or pockets.

Carrier compatibility

UnlockedUnlocked

Connector

N/ALightning

Depth

7.9 mm7.1 mm

Height

158.5 mm138.3 mm

Mobile network

4G4G

Release date

7 February 2020N/A

SD card slot

microSDXCNo

SIM card

Dual Physical SIMPhysical SIM

Weight

172 g138 g

Width

73.6 mm67.1 mm

Galaxy A51 or iPhone 7: 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 1960 mAh)
  • you want a bigger screen (6.5 inch vs 4.7 inch)

Buy the iPhone 7 if

  • you want to spend less: it starts at £66.24, £30.71 less than the Galaxy A51
  • you want a lighter build (138 g vs 172 g)

What our customers say

Customers of the Galaxy A51 often mention that the phone looks nearly new and has a smooth interface with plenty of storage. Some note that battery life can drain faster than preferred but generally lasts a day with normal use. Several reviews praise the device's condition and performance, while a few mention issues with cleanliness or functionality. Overall, users appreciate the large screen and storage options.

Reviews of the iPhone 7 highlight its reliable battery life and quick performance for daily tasks. Many customers find the condition excellent with minimal scratches and appreciate the physical SIM card slot for easy swapping. The phone's compact size suits simple uses like calling and texting, and the setup is described as straightforward. Some users experienced minor issues with specific features but generally report satisfaction with the device's screen quality and speed.

The Galaxy A51 suits users who want a larger screen, more storage flexibility, and higher camera resolution. The iPhone 7 is a good fit for those who prefer a smaller device with solid everyday performance and straightforward use.

Galaxy A51 vs iPhone 7 FAQs

Galaxy A51 vs iPhone 7 comes down to the chipset, RAM and battery. Chipset: Exynos 9611 on the Galaxy A51, Apple A10 Fusion (16 nm) on the iPhone 7. The Galaxy A51 has more RAM: 4 GB vs 2 GB.

The iPhone 7 is cheaper refurbished, from £66.24 compared with £96.95 for the Galaxy A51.

The Galaxy A51 has a bigger battery: 4000 mAh vs 1960 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 7 ended in Mar 2025. Its last version is iOS 15.

Refurbished, the Galaxy A51 comes in 64GB and 128GB, and the iPhone 7 in 32GB and 128GB.

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