The S25 Ultra offers a variety of options to suit different user needs. Accompanied with 12GB of RAM, storage ranging from 256GB up to a impressive 1TB for apps, media, and files. These spec options make the S25 Ultra adaptable, whether you’re a heavy media user, a gamer, or someone who simply wants plenty of storage and long term usability.
Samsung Galaxy S25 Ultra | Full Review
19/12/25
Price: £890.00 (256GB) | Price: £950.00 (512GB) | Price: £1290.00 (1TB)
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The Samsung Galaxy S25 Ultra envisions what a top tier S‑series phone might be: a large, premium device with a stunning display, powerful cameras, and high‑performance internals. It aims to bridge the gap between pro‑grade photography and daily usability. While the battery, size, and price trade-offs are real, the S25 Ultra could be the choice for users who demand the very best from a Samsung smartphone.
Pros
- Expansive, ultra‑bright LTPO AMOLED display
- Advanced multi-lens camera system with high zoom
- Very strong processing power with AI capabilities
- High-capacity battery for extensive use
Cons
- Large factor may impact portability
- Likely slow charging compared to some rivals
- More expensive that other S25 range
Galaxy S25 Ultra – Overview
The Galaxy S25 Ultra is conceived as Samsung’s ultimate S-series flagship, emphasising cutting edge features in a high end body. It aims to deliver the best in screen quality, camera flexibility, and performance. For power users, content creators, and photography enthusiasts, it offers a compelling package. However, its size, battery demands, and premium cost may not appeal to those looking for a more compact or affordable flagship.
Galaxy S25 Ultra – Design
Samsung’s design DNA is clearly on show with the S25 Ultra. The device features a solid metal frame paired with a curved glass back, giving it a premium and durable feel. With its large footprint, the Ultra is clearly not designed for smaller pockets, but it feels well balanced in the hand.
The rear camera module is prominent, yet the overall design remains refined and avoids feeling unwieldy. Weight is distributed evenly, and the materials used reinforce the S25 Ultra’s flagship status without making it feel unnecessarily bulky.
Galaxy S25 Ultra – Display
The Galaxy S25 Ultra sports a 6.9‑inch Dynamic LTPO AMOLED 2X display with QHD+ resolution and an adaptive refresh rate up to 120Hz, ensuring smooth scrolling and responsive visuals. It supports HDR10+ and reaches high peak brightness, making outdoor viewing easy while delivering vibrant, accurate colours for media, gaming, and everyday use.
Curved edges give the phone a premium feel, though some users may prefer a flatter panel for easier one handed use. Overall, the S25 Ultra’s display combines size, clarity, and fluid performance, making it one of the standout features of the device.
Galaxy S25 Ultra – Camera & Video
The Galaxy S25 Ultra is designed for serious photography, featuring a quad-camera setup: a 200MP main sensor, a 50MP ultra-wide lens, a 50MP periscope telephoto lens with 5× optical zoom, and a 10MP telephoto lens with 3× optical zoom. Samsung’s advanced image processing ensures sharp detail, accurate colours, and strong low light performance across all lenses.
Video recording supports 8K resolution, HDR, and stabilisation, delivering smooth, high quality clips. With versatile zoom options and powerful processing, the S25 Ultra provides professional-level results in a smartphone, making it a compelling choice for mobile creators.
Galaxy S25 Ultra – Spec Options
Galaxy S25 Ultra – Build Quality
The Galaxy S25 Ultra feels substantial and premium from the moment you pick it up. The device is rated IP68 for water and dust resistance, making it more resilient to everyday wear and weather than many phones with comparable power.
Despite its large size, the design remains thoughtful: curved edges and ergonomic shaping help the squared off form sit comfortably in hand, and the reduced bezel around the display helps keep the front view sleek. Whether you’re watching video, sketching with the S Pen, or simply browsing, the build and shape make it easier to hold and use over extended periods.
Galaxy S25 Ultra – Performance
Powered by a cutting-edge chipset Snapdragon 8 Elite, paired with 12GB of RAM, the S25 Ultra handles everything from heavy multitasking to demanding creative workloads. On device AI features like live translation, image editing, and predictive tasks feel extremely fast. Thermal management is crucial on such a large device, and a well designed cooling system helps maintain peak performance without throttling during intense use.
Galaxy S25 Ultra – Life and Charge Time
Galaxy S25 Ultra
- Battery Life – 8h 54m (video playback)
- Charge Time – 68% in ~30 minutes (wired), full in ~1h 9m
Galaxy S25
- Battery Life – 8h 1m (video playback)
- Charge Time – 54% in ~30 minutes (wired), full in ~1h 22m
Galaxy S24 Ultra
- Battery Life – 8 h 20 m (video playback)
- Charge Time – 68% in ~30 minutes (wired), full in ~1 h 9m
The S25 Ultra delivers the longest battery life in the current lineup, lasting just under nine hours in video playback tests. This gives it a clear advantage over the standard S25.
Charging is also efficient, with the S25 Ultra reaching nearly 70 percent in around thirty minutes and a full charge in just over an hour. The S25 charges a little slower, filling just over half in the first thirty minutes and taking around one hour and twenty-two minutes for a complete charge. Overall, the S25 Ultra balances endurance and speed, making it the most practical option for longer daily use and media consumption.
Galaxy S25 Ultra – Operating System
Geekbench results
CPU single-core scores:
- Samsung Galaxy S25 Ultra – Score = 1416
- Samsung Galaxy S25 – Score = 1,112
- Samsung Galaxy S24 Ultra – Score = 1,625
CPU multi-core scores:
- Samsung Galaxy S25 Ultra – Score = 6,435
- Samsung Galaxy S25 – Score = 2,428
- Samsung Galaxy S24 Ultra – Score = 6,956
The S25 Ultra delivers true flagship-level performance, comfortably outperforming the previous generation and standard S25. Daily apps, intensive multitasking, AI-enhanced photography, and high end gaming run smoothly without noticeable slowdowns.
Thermal management and software optimisation help maintain performance during longer sessions, ensuring the device feels responsive and polished even under heavy workloads. For users who push their phone with creative tasks, media editing, or prolonged gaming, these scores suggest a reliable and capable flagship experience.
Galaxy S25 Ultra – Additional Features
Large 6.9″ Dynamic AMOLED display
AI‑enhanced photography, editing
Up to seven years of Android and security updates support
S Pen for notes, drawing, and productivity tools
5G / Wi‑Fi 7 / UWB / NFC and modern connectivity suite
45W fast wired charging plus Qi2 wireless charging
256GB, 512GB or 1TB storage options
Premium build with titanium-frame
Galaxy S25 Ultra – Problems with Older Phones / Issues to Look Out For
While the design will be premium, the physical size of the S25 Ultra may pose challenges for portability and one-handed use. The large rear camera island could be a point of vulnerability, especially without a protective case. Fingerprints and smudges on the glass back may show more, given the materials. Charging speed may disappoint power users who expect ultra-fast charging. Also, such a large battery could make the device heavier, which could impact comfort during extended use.
Galaxy S25 Ultra – Verdict
The Galaxy S25 Ultra is envisioned as a powerful, premium flagship tailored for users who prioritise camera flexibility, maximum screen real estate, and performance. It is likely to appeal to creators, power users, and fans of large phones who want a refined and capable device. While it may not offer ultra-fast charging or compact portability, its design, processing power, and AI-driven features make it a compelling choice for those willing to pay for an advanced Samsung experience. If you’re after a top of the line, future proof Galaxy with pro level capabilities, the S25 Ultra is a strong contender in this hypothetical line-up.