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Galaxy S9 vs iPhone 7

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Galaxy S9

Starting at

£116.50£449.00 new
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iPhone 7

Starting at

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

What's the difference between the Galaxy S9 and iPhone 7?

Galaxy S9 vs iPhone 7 comes down to the RAM, battery and screen size. Refurbished, the iPhone 7 starts at £66.24, £50.26 less than the Galaxy S9. The Galaxy S9 is the newer model, released in 2018.

Refurbished from

£116.50£66.24

RAM

4 GB2 GB

Battery

3000 mAh1960 mAh

Screen size

5.8 inch4.7 inch

Screen type

Super AMOLEDRetina IPS LCD

Front camera

8 megapixels7 megapixels
  • The Galaxy S9 has more RAM: 4 GB vs 2 GB.
  • The Galaxy S9 has a bigger battery: 3000 mAh vs 1960 mAh.
  • The Galaxy S9 has a bigger screen: 5.8 inch vs 4.7 inch.

Galaxy S9 vs iPhone 7 specs

The Galaxy S9 and iPhone 7 offer different experiences suited to distinct needs. The Galaxy S9 features a larger, higher-resolution Super AMOLED screen and more RAM, which helps with multitasking and enjoying detailed visuals. It also has a bigger battery and supports expandable storage via microSDXC cards, ideal for those who want extra space. The iPhone 7 has a smaller Retina IPS LCD screen and a simpler design, which may suit users looking for a compact and straightforward device. Both phones have similar main cameras but differ in front camera resolution and connector types. Choosing between them depends on your preferences for screen size, storage flexibility, and operating system.

Galaxy S9 vs iPhone 7 price

Galaxy S9 vs iPhone 7 battery life and software updates

Battery capacity and operating system shape how long each phone lasts through the day and how you interact with it. Both phones are unlocked and use physical SIM cards.

Battery Capacity

The Galaxy S9 has a 3000 mAh battery, which offers more power capacity than the iPhone 7's 1960 mAh. This means the Galaxy S9 may go longer between charges, suiting users who need extended daily use without top-ups.

Operating System

The Galaxy S9 runs on Android, while the iPhone 7 uses iOS. Your choice will depend on which ecosystem you prefer for apps, updates, and user interface.

Battery

3000 mAh1960 mAh

Foldable

NoNo

Ip rating

IP68IP67

Software updates

Ended Apr 2022Ended Mar 2025, last iOS 15

Wireless charging

YesN/A

Year of release

20182016

Galaxy S9 vs iPhone 7 performance

Chipset

N/AApple A10 Fusion (16 nm)

RAM

4 GB2 GB

Galaxy S9 vs iPhone 7 screen

Screen size, resolution and display technology affect how much you see and how vibrant it looks. These differences matter if you watch videos or browse often.

Screen Size

The Galaxy S9 has a 5.8 inch screen, which is noticeably larger than the iPhone 7's 4.7 inch display. This extra space suits users who like a roomier view for videos or multitasking.

Resolution and Display Type

With a resolution of 1440 x 2960, the Galaxy S9 offers sharper and more detailed images on its Super AMOLED screen. The iPhone 7's 750 x 1334 Retina IPS LCD screen provides clear visuals on a smaller scale, fitting users who prefer a straightforward display.

Refresh rate

N/A60 Hz

Resolution

1440 x 2960750 x 1334

Screen size

5.8 inch4.7 inch

Screen type

Super AMOLEDRetina IPS LCD

Galaxy S9 vs iPhone 7 camera

Camera capabilities and front-facing camera resolution influence photo quality and video calls.

Main Camera

Both the Galaxy S9 and iPhone 7 feature 12 megapixel main cameras, so either is capable of capturing detailed photos suitable for everyday use.

Front Camera

The Galaxy S9 has an 8 megapixel front camera, slightly higher in resolution than the iPhone 7's 7 megapixels. This may appeal to users who prioritise selfies or video calling quality.

Camera type

Single (1x)N/A

Front camera

8 megapixels7 megapixels

Main camera

12 megapixels12 megapixels

Galaxy S9 vs iPhone 7 size and design

Several other features affect convenience and how you use the phone daily, from charging to storage options.

Storage Options

The Galaxy S9 is available with 64GB or 128GB storage and supports microSDXC cards, allowing you to expand storage easily. The iPhone 7 offers 32GB or 128GB but does not support additional memory cards, which suits users comfortable managing storage within the device.

Connector Types

The Galaxy S9 includes both USB-C and a 3.5mm headphone jack, giving flexibility for charging and audio. The iPhone 7 uses a Lightning connector, so compatible accessories are needed.

Size and Weight

The Galaxy S9 is taller at 147.7 mm, wider at 68.7 mm, and thicker at 8.5 mm, weighing 163 g. The iPhone 7 is more compact, measuring 138.3 mm in height, 67.1 mm in width, 7.1 mm in depth, and weighing 138 g. The smaller size and lighter weight of the iPhone 7 suits users wanting a more pocket-friendly device.

Carrier compatibility

UnlockedUnlocked

Connector

USB-C + Jack 3.5mmLightning

Depth

8.5 mm7.1 mm

Height

147.7 mm138.3 mm

Mobile network

4G4G

Release date

16 March 2018N/A

SD card slot

microSDXCNo

SIM card

Physical SIMPhysical SIM

Weight

163 g138 g

Width

68.7 mm67.1 mm

Galaxy S9 or iPhone 7: which should you buy?

Buy the Galaxy S9 if

  • you want more RAM (4 GB vs 2 GB)
  • you want a bigger battery (3000 mAh vs 1960 mAh)
  • you want a bigger screen (5.8 inch vs 4.7 inch)

Buy the iPhone 7 if

  • you want to spend less: it starts at £66.24, £50.26 less than the Galaxy S9
  • you want a lighter build (138 g vs 163 g)

What our customers say

Customers buying the Galaxy S9 appreciate its condition, with many saying it looks like new or better than expected. They find the storage and performance adequate for daily apps and note the battery can need topping up by evening. The larger screen and smooth running suit those who want a phone for media and multitasking. Some mention minor marks or occasional overheating, but overall the phone works well and meets their needs.

Reviews for the iPhone 7 highlight its excellent condition and reliable battery life. Buyers often use it as a simple phone for calls and texts or as a temporary device. The smaller size and straightforward setup appeal to users who want ease of use. Some customers note small scratches or minor issues, but the phone generally performs smoothly and matches the description.

Both phones suit different users: the Galaxy S9 fits those looking for a larger screen and flexible storage, while the iPhone 7 offers a compact, easy-to-use device for everyday communication.

Galaxy S9 vs iPhone 7 FAQs

Galaxy S9 vs iPhone 7 comes down to the RAM, battery and screen size. The Galaxy S9 has more RAM: 4 GB vs 2 GB. The Galaxy S9 has a bigger battery: 3000 mAh vs 1960 mAh.

The iPhone 7 is cheaper refurbished, from £66.24 compared with £116.50 for the Galaxy S9.

The Galaxy S9 has a bigger battery: 3000 mAh vs 1960 mAh.

Both have the same main camera: 12 megapixels.

Updates for the Galaxy S9 ended in Apr 2022. Updates for the iPhone 7 ended in Mar 2025. Its last version is iOS 15.

Refurbished, the Galaxy S9 comes in 64GB and 128GB, and the iPhone 7 in 32GB and 128GB.

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