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iPhone 15 vs iPhone 17 Pro

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iPhone 15

Starting at

£416.19£699.00 new
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iPhone 17 Pro

Starting at

£1,074.24£1,099.00 new
See options
(417 reviews)
(117 reviews)

What's the difference between the iPhone 15 and iPhone 17 Pro?

iPhone 15 vs 17 Pro comes down to the chipset, RAM and battery. Refurbished, the iPhone 15 starts at £416.19, £658.05 less than the iPhone 17 Pro. The iPhone 17 Pro is the newer model, released in 2025.

Refurbished from

£416.19£1074.24

Chipset

Apple A16 BionicApple A19 Pro (3 nm)

RAM

6 GB12 GB

Battery

3349 mAh3998 mAh, 4252 mAh

Screen size

6.1 inch6.3 inch

Screen type

Super Retina XDR OLEDSuper Retina XDR
  • Chipset: Apple A16 Bionic on the iPhone 15, Apple A19 Pro (3 nm) on the iPhone 17 Pro.
  • The iPhone 17 Pro has more RAM: 12 GB vs 6 GB.
  • Battery: 3349 mAh on the iPhone 15, 3998 mAh, 4252 mAh on the iPhone 17 Pro.

iPhone 15 vs iPhone 17 Pro specs

The iPhone 15 and iPhone 17 Pro differ across several key areas that affect everyday use. The iPhone 15 is a lighter, more compact phone with a smaller battery and screen, suited for users who want a straightforward, reliable device with good battery life. The iPhone 17 Pro offers a larger, sharper screen with a faster refresh rate and double the RAM, which benefits those who want smoother multitasking, better visuals, and more storage options up to 1TB. It has a higher capacity battery and a more detailed front camera, fitting users who favour enhanced performance and media quality. Both phones run iOS and support 5G, making them solid choices depending on your priorities.

iPhone 15 vs iPhone 17 Pro price

iPhone 15 vs iPhone 17 Pro battery life and software updates

Durability covers battery capacity, software updates, and physical design.

Battery Capacity

The iPhone 15 has a battery capacity of 3349 mAh, which provides solid daily use. The iPhone 17 Pro offers battery capacities of 3998 mAh and 4252 mAh, which can extend battery life for users who need longer usage between charges.

Physical Size and Weight

The iPhone 15 is lighter at 171 grams and thinner at 7.8 mm depth, making it easier to carry and handle. The iPhone 17 Pro is larger and heavier at 206 grams and 8.8 mm depth, which may feel more substantial in hand or pocket.

Battery

3349 mAh3998 mAh, 4252 mAh

Foldable

NoNo

Ip rating

IP68IP68

Software updates

Supported, up to iOS 27Supported, up to iOS 27

Wireless charging

YesYes

Year of release

20232025

iPhone 15 vs iPhone 17 Pro performance

Performance impacts how smoothly your apps run and how much data you can store. These two devices offer different chipsets, RAM amounts, and storage options that suit different user needs.

Processor Power

The iPhone 15 runs on the Apple A16 Bionic chip, suitable for everyday tasks and typical app use. The iPhone 17 Pro uses the Apple A19 Pro (3 nm) chip, which can handle more demanding applications and multitasking more efficiently.

RAM Capacity

With 6 GB of RAM, the iPhone 15 supports smooth operation for most users. The iPhone 17 Pro has 12 GB of RAM, which benefits users who keep many apps open or use memory-intensive software.

Storage Options

The iPhone 15 is available with 128GB, 256GB, or 512GB of storage, fitting users with moderate data needs. The iPhone 17 Pro starts at 256GB and goes up to 1TB, ideal for those who require extensive space for apps, photos, and videos.

Chipset

Apple A16 BionicApple A19 Pro (3 nm)

RAM

6 GB12 GB

iPhone 15 vs iPhone 17 Pro screen

Screen quality affects how you see content, from brightness to smoothness. These phones differ in refresh rate, resolution, size, and screen type, impacting your viewing experience.

Refresh Rate

The iPhone 15 has a 60 Hz refresh rate, which delivers standard smoothness for scrolling and video. The iPhone 17 Pro has a 120 Hz refresh rate, making animations and motion appear smoother and more fluid.

Resolution and Size

The iPhone 15 features a 6.1 inch screen with a resolution of 1179 by 2556 pixels, providing clear visuals. The iPhone 17 Pro has a larger 6.3 inch screen with a resolution of 2622 by 1206 pixels, offering a roomier display with sharper detail for videos and reading.

Screen Type

Both phones use Super Retina displays, with the iPhone 15 specifying Super Retina XDR OLED and the iPhone 17 Pro marked as Super Retina XDR, each providing excellent colour accuracy and contrast.

Refresh rate

60 Hz120 Hz

Resolution

1179 x 25562622x1206

Screen size

6.1 inch6.3 inch

Screen type

Super Retina XDR OLEDSuper Retina XDR

iPhone 15 vs iPhone 17 Pro camera

The audiovisual section looks at camera capabilities, which affect how your photos and video calls turn out.

Front Camera Detail

The iPhone 15 has a 12 megapixel front camera, sufficient for clear selfies and video calls. The iPhone 17 Pro offers an 18 megapixel front camera, capturing more detail and sharper images.

Main Camera

Both phones have a 48 megapixel main camera, which should provide similar quality for standard photography needs.

Front camera

12 megapixels18 megapixels

Main camera

48 megapixels48 megapixels

iPhone 15 vs iPhone 17 Pro size and design

This section covers other practical details such as connectivity, physical dimensions, SIM options, and weight that affect everyday handling and compatibility.

SIM Card Setup

The iPhone 15 supports both a physical SIM and eSIM, offering flexibility for users who prefer a physical card. The iPhone 17 Pro supports eSIM only, which suits users comfortable with digital SIM management.

Physical Dimensions

The iPhone 15 measures 147.6 mm in height, 71.6 mm in width, and 7.8 mm in depth, and weighs 171 grams. The iPhone 17 Pro is slightly taller at 150 mm, a little wider at 71.9 mm, thicker at 8.8 mm, and heavier at 206 grams, which impacts how the phone feels in your hand or pocket.

Connector and Network

Both devices use USB-C connectors and support 5G mobile networks, ensuring modern charging and fast connectivity.

Carrier compatibility

UnlockedUnlocked

Connector

USB-CUSB-C

Depth

7.8 mm8.8 mm

Height

147.6 mm150 mm

Mobile network

5G5G

Release date

22 September 202319 September 2025

SD card slot

NoNo

SIM card

Physical SIM + eSIMeSIM

Weight

171 g206 g

Width

71.6 mm71.9 mm

iPhone 15 or iPhone 17 Pro: which should you buy?

Buy the iPhone 15 if

  • you want to spend less: it starts at £416.19, £658.05 less than the iPhone 17 Pro
  • you want an OLED screen
  • you want a lighter build (171 g vs 206 g)

Buy the iPhone 17 Pro if

  • you want more RAM (12 GB vs 6 GB)
  • you want a bigger screen (6.3 inch vs 6.1 inch)
  • you want a smoother screen (120 Hz vs 60 Hz)

What our customers say

Customers of the iPhone 15 often describe the device as looking like new even in fair condition, with many noting no visible scratches or marks. Reviews highlight strong battery life and good screen and camera performance. Users find the phone responsive and easy to set up, with the battery health frequently reported above 90%. The size and weight make it feel comfortable for daily use, and the overall experience meets or exceeds expectations for a refurbished device.

For the iPhone 17 Pro, customers mention the phone being in excellent or perfect condition with spotless screens and minimal marks. The larger screen and higher resolution are appreciated, especially for media consumption and clarity in sunlight. The battery health is often reported as 100%, supporting longer use, and the device is described as powerful and suitable for content creation or multitasking. Some users note the weight and size difference but find it manageable.

Both devices attract users looking for reliable refurbished iPhones with solid battery life and good screen quality. The iPhone 15 suits those who prefer a lighter, more compact phone for everyday use, while the iPhone 17 Pro appeals to users who prioritise larger screens, more memory, and higher camera detail.

iPhone 15 vs iPhone 17 Pro FAQs

iPhone 15 vs 17 Pro comes down to the chipset, RAM and battery. Chipset: Apple A16 Bionic on the iPhone 15, Apple A19 Pro (3 nm) on the iPhone 17 Pro. The iPhone 17 Pro has more RAM: 12 GB vs 6 GB.

The iPhone 15 is cheaper refurbished, from £416.19 compared with £1074.24 for the iPhone 17 Pro.

The iPhone 15 has 3349 mAh and the iPhone 17 Pro has 3998 mAh, 4252 mAh.

Both have the same main camera: 48 megapixels.

The iPhone 15 is still supported and can run iOS 27. The iPhone 17 Pro is still supported and can run iOS 27.

The iPhone 17 Pro adds more RAM (12 GB vs 6 GB), a bigger screen (6.3 inch vs 6.1 inch) and a smoother screen (120 Hz vs 60 Hz). Refurbished, it costs £658.05 more (from £1074.24 vs £416.19).

Refurbished, the iPhone 15 comes in 128GB, 256GB and 512GB, and the iPhone 17 Pro in 256GB, 512GB and 1TB.

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