iPhone 15 vs iPhone X
Shop iPhone
iPhone 15
Starting at
£416.19£699.00 new
iPhone X
Starting at
£121.10£449.00 newWhat's the difference between the iPhone 15 and iPhone X?
iPhone 15 vs X comes down to the chipset, RAM and battery. Refurbished, the iPhone X starts at £121.10, £295.09 less than the iPhone 15. The iPhone 15 is the newer model, released in 2023.
Refurbished from
Chipset
RAM
Battery
Screen size
Screen type
- Chipset: Apple A16 Bionic on the iPhone 15, Apple A11 Bionic (10 nm) on the iPhone X.
- The iPhone 15 has more RAM: 6 GB vs 3 GB.
- The iPhone 15 has a bigger battery: 3349 mAh vs 2716 mAh.
iPhone 15 vs iPhone X specs
The iPhone 15 and iPhone X differ in several key areas that suit different kinds of users. The iPhone 15 offers a larger battery, more RAM, a higher resolution screen, and more detailed cameras, making it well suited for those who want a phone with more power, longer battery life, and sharper photos. It supports 5G and uses a USB-C connector, which may appeal if you want faster networks and a more common charging port. The iPhone X offers a slightly smaller screen and fewer megapixels in its cameras, with 4G network support and the Lightning connector, making it suitable for everyday use where these newer features are not essential. Storage options also differ, with the iPhone 15 available up to 512GB and the iPhone X up to 256GB.
iPhone 15 vs iPhone X price
Colour
iPhone 15 vs iPhone X battery life and software updates
Durability covers battery size, software updates, and physical dimensions. These aspects affect how long you can use the phone between charges and whether the device will keep receiving updates.
Battery Capacity
The iPhone 15 has a 3349 mAh battery, which is larger than the iPhone X's 2716 mAh. This means the iPhone 15 will generally offer longer usage between charges, which suits users who rely on their phone throughout a busy day. The iPhone X's smaller battery fits well if you use your phone less intensively or can charge it more often.
Software Updates
If ongoing software updates matter to you, the iPhone 15 is the choice.
Battery
Foldable
Ip rating
Software updates
Wireless charging
Year of release
iPhone 15 vs iPhone X performance
Performance covers the chipset, RAM, and storage options you can choose. These affect how smoothly the phone runs apps, multitasks, and stores data.
Processor and RAM
The iPhone 15 has the Apple A16 Bionic chipset and 6 GB of RAM, which supports more demanding apps and keeps more tasks active at once. The iPhone X uses the Apple A11 Bionic chipset with 3 GB of RAM, which suits everyday use and simpler apps. If you use many apps simultaneously or want faster performance in newer games or software, the iPhone 15 fits better.
Storage Options
The iPhone 15 is available in 128GB, 256GB, and 512GB options, offering plenty of space for apps, photos, and media. The iPhone X comes in 64GB and 256GB variants, which may be enough if you mainly use cloud storage or do not save large files. Choose the iPhone 15 for more storage flexibility.
Chipset
RAM
iPhone 15 vs iPhone X screen
Screen quality impacts how you see photos, videos, and text. Size, resolution, and display technology all influence the viewing experience.
Screen Size and Resolution
The iPhone 15 features a 6.1 inch screen with a resolution of 1179 x 2556 pixels, giving a slightly larger and higher resolution display than the iPhone X's 5.8 inch screen at 1125 x 2436 pixels. This results in a roomier view for watching videos or browsing for the iPhone 15. The iPhone X still offers a sharp display that suits everyday use and fits comfortably in smaller hands.
Screen Type
Both phones use Super Retina OLED technology, with the iPhone 15 using the Super Retina XDR OLED variant. This means the iPhone 15's screen is designed to provide bright and clear images, which benefits users who want a vivid display for photos and videos. The iPhone X's Super Retina OLED screen also offers high-quality visuals suitable for general use.
Refresh rate
Resolution
Screen size
Screen type
iPhone 15 vs iPhone X camera
Audiovisual features include the cameras, which affect how detailed your photos and selfies will be.
Front Camera
The iPhone 15 has a 12 megapixel front camera, which captures more detail in selfies and video calls than the iPhone X's 7 megapixel front camera. This suits users who prioritise clearer self-portraits or video chats.
Main Camera
The iPhone 15 offers a 48 megapixel main camera, providing much higher resolution for photos than the iPhone X's 12 megapixel main camera. This difference is noticeable when zooming in or printing photos, making the iPhone 15 suitable for photography enthusiasts or those who want sharper images.
Camera type
Front camera
Main camera
iPhone 15 vs iPhone X size and design
This section covers network compatibility, connectors, physical size, and SIM options, all of which affect usability and convenience.
Network and SIM
The iPhone 15 supports 5G networks, offering faster mobile data where available, and accepts both a physical SIM and an eSIM. The iPhone X supports 4G networks and uses a physical SIM only. Choose the iPhone 15 if you want the option of the latest mobile network speeds and dual SIM capability.
Connector Type
The iPhone 15 uses a USB-C connector, which is common for many modern devices and accessories. The iPhone X uses the Lightning connector, which is specific to certain Apple devices. Your choice may depend on which cables and chargers you already have.
Physical Dimensions and Weight
The iPhone 15 measures 147.6 mm in height, 71.6 mm in width, and 7.8 mm in depth, weighing 171 g. The iPhone X is taller and wider at 143.6 mm height and 70.9 mm width, with a depth of 7.7 mm and weight of 174 g. These small differences affect how the phones feel in the hand or pocket, with the iPhone 15 being marginally lighter and more compact in width.
Carrier compatibility
Connector
Depth
Height
Mobile network
Release date
SD card slot
SIM card
Weight
Width
iPhone 15 or iPhone X: which should you buy?
Buy the iPhone 15 if
- you want more RAM (6 GB vs 3 GB)
- you want a bigger battery (3349 mAh vs 2716 mAh)
- you want a bigger screen (6.1 inch vs 5.8 inch)
Buy the iPhone X if
- you want to spend less: it starts at £121.10, £295.09 less than the iPhone 15
What our customers say
Customers who buy the iPhone 15 consistently report that it looks like new or better than expected, with many praising the battery life and overall performance. Several mention the phone's condition in fair or good quality grades being impressive, with near-new appearance and high battery health percentages. Users appreciate the camera quality and the ease of setup and data transfer. The iPhone 15 is seen as responsive and capable, with clear photos and good screen performance. Customers also mention reliability and satisfaction with the phone's condition and features.
For the iPhone X, customers describe it as a solid choice for everyday use, noting it looks and works like new in many cases. Buyers highlight the phone as a practical option for those who do not need the latest features, such as parents buying for children or users who want a reliable phone at a lower price. Some reviews mention smooth performance and good battery life. A few note app support affecting certain uses, but overall satisfaction with the phone's condition and usability is common.
The iPhone 15 suits those who want more power, better cameras, and the latest network compatibility with 5G. The iPhone X is suitable for users who want a capable phone with a familiar design and features for everyday tasks without the need for the newest hardware or software updates.
iPhone 15 vs iPhone X FAQs
iPhone 15 vs X comes down to the chipset, RAM and battery. Chipset: Apple A16 Bionic on the iPhone 15, Apple A11 Bionic (10 nm) on the iPhone X. The iPhone 15 has more RAM: 6 GB vs 3 GB.
The iPhone X is cheaper refurbished, from £121.10 compared with £416.19 for the iPhone 15.
The iPhone 15 has a bigger battery: 3349 mAh vs 2716 mAh.
The iPhone 15 has a higher-resolution main camera: 48 megapixels vs 12 megapixels.
The iPhone 15 is still supported and can run iOS 27. Updates for the iPhone X ended in Mar 2025. Its last version is iOS 16.
The iPhone 15 adds more RAM (6 GB vs 3 GB), a bigger battery (3349 mAh vs 2716 mAh) and a bigger screen (6.1 inch vs 5.8 inch). Refurbished, it costs £295.09 more (from £416.19 vs £121.10).
Refurbished, the iPhone 15 comes in 128GB, 256GB and 512GB, and the iPhone X in 64GB and 256GB.
