iPhone 15 Pro Max vs iPhone X
Shop iPhone
iPhone 15 Pro Max
Starting at
£577.65£1,199.00 new
iPhone X
Starting at
£121.10£449.00 newWhat's the difference between the iPhone 15 Pro Max and iPhone X?
iPhone 15 Pro Max vs X comes down to the chipset, RAM and battery. Refurbished, the iPhone X starts at £121.10, £456.55 less than the iPhone 15 Pro Max. The iPhone 15 Pro Max is the newer model, released in 2023.
Refurbished from
Chipset
RAM
Battery
Screen size
Screen type
- Chipset: Apple A17 Pro (3 nm) on the iPhone 15 Pro Max, Apple A11 Bionic (10 nm) on the iPhone X.
- The iPhone 15 Pro Max has more RAM: 8 GB vs 3 GB.
- The iPhone 15 Pro Max has a bigger battery: 4441 mAh vs 2716 mAh.
iPhone 15 Pro Max vs iPhone X specs
The iPhone 15 Pro Max and iPhone X differ in several key areas that suit different needs. The iPhone 15 Pro Max offers a larger and higher resolution screen, more RAM, a more advanced chipset, and a bigger battery, which suits users who want a device for demanding apps, longer use between charges, and a bigger display for media. The iPhone X has a smaller screen and less powerful hardware, making it suitable for everyday use or those who prefer a more compact phone. The iPhone 15 Pro Max supports 5G and uses USB-C, while the iPhone X supports 4G and uses Lightning. Camera capabilities and storage options also vary, with the 15 Pro Max offering higher megapixel cameras and more storage choices.
iPhone 15 Pro Max vs iPhone X price
Colour
iPhone 15 Pro Max vs iPhone X battery life and software updates
Durability covers battery size, software updates, and physical design.
Battery Capacity
The iPhone 15 Pro Max has a 4441 mAh battery, which is notably larger than the iPhone X's 2716 mAh. This means the 15 Pro Max is suited for users who need longer battery life throughout the day, especially when running power-intensive apps or media. The iPhone X's battery suits those with lighter usage or shorter daily use periods.
Battery
Foldable
Ip rating
Software updates
Wireless charging
Year of release
iPhone 15 Pro Max vs iPhone X performance
Performance depends on the chipset, RAM, and storage options, all of which influence speed, multitasking, and storage capacity.
Chipset and RAM
The iPhone 15 Pro Max features the Apple A17 Pro chipset with 8 GB of RAM, which supports smoother multitasking and faster app performance. This suits users running demanding apps or who keep many apps open simultaneously. The iPhone X has the Apple A11 Bionic chipset with 3 GB of RAM, which is suited for everyday tasks and lighter app use.
Storage Options
PhoneMart stocks the iPhone 15 Pro Max with storage options of 256GB, 512GB, and 1TB, giving plenty of space for large files, apps, and media. The iPhone X is available with 64GB and 256GB, which suits users who need less storage or prefer a lower-priced option.
Chipset
RAM
iPhone 15 Pro Max vs iPhone X screen
Screen quality affects how you view content, with differences in size, resolution, and screen technology.
Screen Size and Resolution
The iPhone 15 Pro Max has a 6.7 inch screen with a resolution of 1290 x 2796, offering a larger and sharper display ideal for watching videos and multitasking. The iPhone X has a 5.8 inch screen with a resolution of 1125 x 2436, which suits users who prefer a more compact phone that still provides a clear and bright image.
Screen Type
The iPhone 15 Pro Max uses LTPO Super Retina XDR OLED technology, which can help with efficient power use and smooth visuals. The iPhone X has a Super Retina OLED screen, delivering high-quality colours and brightness, suitable for everyday media viewing.
Refresh rate
Resolution
Screen size
Screen type
iPhone 15 Pro Max vs iPhone X camera
Audiovisual features focus on camera types and resolutions, which impact photo and video quality.
Camera Setup
The iPhone 15 Pro Max has a triple rear camera system, providing more versatility for photography such as zoom and wide shots. The iPhone X has a double rear camera setup, suitable for standard photo and video needs.
Main Camera Resolution
With a 48 megapixel main camera, the iPhone 15 Pro Max captures more detail for high-resolution photos. The iPhone X's 12 megapixel main camera is sufficient for everyday photography and video.
Front Camera Resolution
The iPhone 15 Pro Max features a 12 megapixel front camera, which can provide sharper and clearer selfies or video calls. The iPhone X has a 7 megapixel front camera, suitable for casual use.
Camera type
Front camera
Main camera
iPhone 15 Pro Max vs iPhone X size and design
Miscellaneous specs include connectivity, physical dimensions, and network support, influencing how you use the phone daily.
Network and SIM Support
The iPhone 15 Pro Max supports 5G networks and can use both a physical SIM and an eSIM, offering flexibility for network choices and faster mobile internet. The iPhone X supports 4G and uses a physical SIM only, suitable for users with standard network needs.
Connector Type
The iPhone 15 Pro Max uses a USB-C connector, which is common for many modern devices and can simplify charging and accessory use. The iPhone X uses the Lightning connector, compatible with many existing Apple accessories.
Physical Size and Weight
The iPhone 15 Pro Max measures 159.9 mm in height, 76.7 mm in width, and weighs 221 g, making it larger and heavier, which suits users comfortable with bigger phones. The iPhone X is smaller at 143.6 mm height, 70.9 mm width, and lighter at 174 g, preferred by those who want a more compact device.
Carrier compatibility
Connector
Depth
Height
Mobile network
Release date
SD card slot
SIM card
Weight
Width
iPhone 15 Pro Max or iPhone X: which should you buy?
Buy the iPhone 15 Pro Max if
- you want more RAM (8 GB vs 3 GB)
- you want a bigger battery (4441 mAh vs 2716 mAh)
- you want a bigger screen (6.7 inch vs 5.8 inch)
Buy the iPhone X if
- you want to spend less: it starts at £121.10, £456.55 less than the iPhone 15 Pro Max
- you want a lighter build (174 g vs 221 g)
What our customers say
Customers who bought the iPhone 15 Pro Max often highlight how the phone looks like new, with many noting the battery health at around 85 to 92 percent, which lasts well through a day of heavy use. They appreciate the camera quality and the large, clear screen. Several mention the phone feels perfect for its condition and that it meets expectations for a high-end device. Users upgrading from other models report satisfaction with the speed and overall experience.
For the iPhone X, customers say the phone looks and works like new, with some using it as a reliable everyday device or a good option for younger users. Battery life is generally acceptable, and the storage options suit many users' needs. Some customers have noted the phone runs smoothly and provides a good balance of features for its price. A few mention app compatibility challenges related to software updates.
Overall, the iPhone 15 Pro Max suits buyers looking for a large, powerful device with long battery life and advanced cameras. The iPhone X is well suited for those wanting a smaller, simpler phone for everyday use or a lower price point.
iPhone 15 Pro Max vs iPhone X FAQs
iPhone 15 Pro Max vs X comes down to the chipset, RAM and battery. Chipset: Apple A17 Pro (3 nm) on the iPhone 15 Pro Max, Apple A11 Bionic (10 nm) on the iPhone X. The iPhone 15 Pro Max has more RAM: 8 GB vs 3 GB.
The iPhone X is cheaper refurbished, from £121.10 compared with £577.65 for the iPhone 15 Pro Max.
The iPhone 15 Pro Max has a bigger battery: 4441 mAh vs 2716 mAh.
The iPhone 15 Pro Max has a higher-resolution main camera: 48 megapixels vs 12 megapixels.
The iPhone 15 Pro Max 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 Pro Max adds more RAM (8 GB vs 3 GB), a bigger battery (4441 mAh vs 2716 mAh) and a bigger screen (6.7 inch vs 5.8 inch). Refurbished, it costs £456.55 more (from £577.65 vs £121.10).
Refurbished, the iPhone 15 Pro Max comes in 256GB, 512GB and 1TB, and the iPhone X in 64GB and 256GB.
