Galaxy S25 Ultra vs iPhone 15 Plus
Shop Samsung Galaxy
Galaxy S25 Ultra
Starting at
£678.00£1,344.41 new
iPhone 15 Plus
Starting at
£439.65£799.00 newWhat's the difference between the Galaxy S25 Ultra and iPhone 15 Plus?
Galaxy S25 Ultra vs iPhone 15 Plus comes down to the chipset, RAM and battery. Refurbished, the iPhone 15 Plus starts at £439.65, £238.35 less than the Galaxy S25 Ultra. The Galaxy S25 Ultra is the newer model, released in 2025.
Refurbished from
Chipset
RAM
Battery
Screen size
Screen type
- Chipset: Qualcomm SM8750-AC Snapdragon 8 Elite (3 nm) on the Galaxy S25 Ultra, Apple A16 Bionic on the iPhone 15 Plus.
- The Galaxy S25 Ultra has more RAM: 12 GB vs 6 GB.
- The Galaxy S25 Ultra has a bigger battery: 5000 mAh vs 4383 mAh.
Galaxy S25 Ultra vs iPhone 15 Plus specs
The Galaxy S25 Ultra and iPhone 15 Plus differ in several key areas that suit different users. The Galaxy S25 Ultra offers a larger 6.9 inch screen with a higher 120 Hz refresh rate, making it suitable for those who want a very smooth and spacious display. It has more RAM and higher megapixel counts in its main cameras, which appeals to multitaskers and photography enthusiasts. The iPhone 15 Plus has a slightly smaller 6.7 inch screen at 60 Hz but runs iOS and offers storage starting at 128GB, fitting users who prefer Apple's ecosystem and a simpler memory setup. Battery capacity is larger on the Galaxy, favouring longer use between charges. Each phone suits a distinct type of user and usage style.
Galaxy S25 Ultra vs iPhone 15 Plus price
Galaxy S25 Ultra vs iPhone 15 Plus battery life and software updates
Durability covers the battery capacity, operating system, and update support of each phone. These factors influence how long the phone lasts on a charge and how it stays current with software.
Battery Capacity
The Galaxy S25 Ultra has a 5000 mAh battery, which is larger than the iPhone 15 Plus's 4383 mAh. This means the Galaxy may last longer on a single charge, which is useful if you use your phone heavily or want longer time between charges. The iPhone 15 Plus's battery is still well sized for everyday use and typical daily routines.
Operating System
The Galaxy S25 Ultra runs on Android, while the iPhone 15 Plus uses iOS. Your choice depends on which operating system you prefer or are already familiar with, as this affects app availability, interface, and ecosystem compatibility.
Software Updates
This means both devices will stay up to date with recent security and feature improvements for now.
Battery
Fast charging
Foldable
Ip rating
Software updates
Wireless charging
Year of release
Galaxy S25 Ultra vs iPhone 15 Plus performance
Performance covers the processing power, memory, and storage options. These specs influence how smoothly the phone runs apps, multitasks, and stores your data.
Chipset and RAM
The Galaxy S25 Ultra is powered by the Qualcomm SM8750-AC Snapdragon 8 Elite chipset with 12 GB of RAM, supporting extensive multitasking and high-performance apps. The iPhone 15 Plus uses the Apple A16 Bionic chipset with 6 GB RAM, which handles everyday tasks and most apps efficiently. The Galaxy's higher RAM suits users who run many apps at once or use demanding software.
Storage Options
The Galaxy S25 Ultra offers 256GB, 512GB, and 1TB storage variants, which is ideal if you need a lot of space for photos, videos, and apps. The iPhone 15 Plus comes in 128GB, 256GB, and 512GB options, catering to users with moderate to large storage needs but not requiring the largest capacity.
Chipset
RAM
Galaxy S25 Ultra vs iPhone 15 Plus screen
Screen quality affects how you see content on your phone. Size, resolution, refresh rate, and screen type all contribute to the viewing experience.
Screen Size and Resolution
The Galaxy S25 Ultra has a larger 6.9 inch screen with a resolution of 1440x3120 pixels, providing more room for videos, games, and multitasking. The iPhone 15 Plus has a 6.7 inch screen at 1290x2796 resolution, which still offers a sharp image but with slightly less screen area.
Refresh Rate
The Galaxy S25 Ultra supports a 120 Hz refresh rate, making animations and scrolling appear very smooth. This is beneficial for gaming and fast-moving content. The iPhone 15 Plus has a 60 Hz refresh rate, which is standard and suits everyday browsing and video watching.
Screen Technology
The Galaxy S25 Ultra's Dynamic LTPO AMOLED 2X screen delivers vibrant colours and energy efficiency, especially with its higher refresh rate. The iPhone 15 Plus uses a Super Retina XDR OLED screen, known for accurate colours and good brightness, fitting users who prefer Apple's display characteristics.
Refresh rate
Resolution
Screen size
Screen type
Galaxy S25 Ultra vs iPhone 15 Plus camera
Audiovisual specs focus on camera capabilities, which matter if you take many photos or videos and want clear selfie shots.
Main Camera
The Galaxy S25 Ultra features a versatile multi-camera setup including a 200 MP wide lens, a 10 MP telephoto lens with 3x optical zoom, and a 50 MP periscope telephoto lens with 5x optical zoom. This variety offers detailed photos and flexible zoom options for different scenes. The iPhone 15 Plus has a 48 MP main camera that suits users who want reliable, high-quality photos without multiple zoom lenses.
Front Camera
Both phones have a 12 MP front camera, which is ideal for selfies and video calls with good detail.
Camera type
Front camera
Main camera
Galaxy S25 Ultra vs iPhone 15 Plus size and design
This section covers additional practical differences that affect daily use, such as size, weight, network compatibility, and ports.
Physical Size and Weight
The Galaxy S25 Ultra measures 162 mm in height and 8 mm in depth, weighing 218 g. The iPhone 15 Plus is slightly smaller and thinner at 160.9 mm height and 7.8 mm depth, and lighter at 201 g. Those who prefer a lighter and slimmer phone might find the iPhone easier to carry and hold for long periods.
Connectivity and SIM
Both phones support 5G networks and use USB-C connectors, ensuring fast data and charging compatibility. Each device accepts a physical SIM card plus an eSIM, giving flexibility for multiple lines or carriers.
Carrier and Storage Expansion
Both devices are unlocked for use with any carrier. Neither phone has an SD card slot, so storage expansion relies on the built-in options available at purchase.
Carrier compatibility
Connector
Depth
Height
Mobile network
Release date
SD card slot
SIM card
Weight
Width
Galaxy S25 Ultra or iPhone 15 Plus: which should you buy?
Buy the Galaxy S25 Ultra if
- you want more RAM (12 GB vs 6 GB)
- you want a bigger battery (5000 mAh vs 4383 mAh)
- you want a bigger screen (6.9 inch vs 6.7 inch)
Buy the iPhone 15 Plus if
- you want to spend less: it starts at £439.65, £238.35 less than the Galaxy S25 Ultra
- you want a lighter build (201 g vs 218 g)
What our customers say
Customers who chose the Galaxy S25 Ultra praise its like-new condition and excellent battery health, often noting long battery life and a solid build. Many appreciate the phone's performance and display quality, with some highlighting the camera's ability to capture great photos in diverse lighting. The phone's speed and smooth operation impress users, and several mention being happy with the refurbished purchase as a way to save money while getting a high-end device. Some customers note the large screen and features like the S Pen as benefits. A few mention minor concerns about device region or specific faults but overall feedback is very positive.
Owners of the iPhone 15 Plus report satisfaction with the phone's condition and smooth operation. The battery lasts about 24 hours for typical use, and transferring data is generally straightforward. Customers appreciate the screen size for easier viewing and the switch to USB-C. The camera lenses are noted to be in good condition, and the phone is described as reliable for everyday tasks. Some mention the phone being slightly heavier but still comfortable. Buyers like the unlocked status and find the storage capacity adequate. Overall, users are happy with the performance and quality of the refurbished iPhone.
Both phones suit different types of users: the Galaxy S25 Ultra appeals to those wanting a larger, higher performance device with advanced camera options, while the iPhone 15 Plus fits users who prefer iOS, a slightly smaller but still spacious screen, and a simpler storage range. Each has strong customer approval for condition and usability.
Galaxy S25 Ultra vs iPhone 15 Plus FAQs
Galaxy S25 Ultra vs iPhone 15 Plus comes down to the chipset, RAM and battery. Chipset: Qualcomm SM8750-AC Snapdragon 8 Elite (3 nm) on the Galaxy S25 Ultra, Apple A16 Bionic on the iPhone 15 Plus. The Galaxy S25 Ultra has more RAM: 12 GB vs 6 GB.
The iPhone 15 Plus is cheaper refurbished, from £439.65 compared with £678 for the Galaxy S25 Ultra.
The Galaxy S25 Ultra has a bigger battery: 5000 mAh vs 4383 mAh.
The Galaxy S25 Ultra has a higher-resolution main camera: 200 megapixels vs 48 megapixels.
The Galaxy S25 Ultra gets updates until Feb 2032. The iPhone 15 Plus is still supported and can run iOS 27.
Refurbished, the Galaxy S25 Ultra comes in 256GB, 512GB and 1TB, and the iPhone 15 Plus in 128GB, 256GB and 512GB.
