The update of the Samsung Galaxy S series has always been the focus of attention. Today we will not talk about the latest S26 Ultra. Starting from the S24 Ultra, we will analyze what updates the S25 Ultra has made compared with the S24 Ultra in six aspects: appearance and hand feel, performance and chip, camera system, screen experience, AI capabilities, heat dissipation and battery life.
Appearance and Hand Feel
At first glance, the S25 Ultra and S24 Ultra still adopt the family-style square design, titanium metal middle frame, and rear four-camera matrix, with a highly unified style. But from the specific data, there are still considerable differences between the two.
- Size and Weight: S25 Ultra 6.9 inches, thickness 8.2mm, weight 218g; S24 Ultra 6.8 inches, thickness 8.6mm, weight 232g. Both with titanium metal body, the S25 Ultra is 14g lighter and 0.4mm thinner. Coupled with smoother rounded corners and 15% narrower bezels, it can be easily operated with one hand, and long-term holding will not increase hand pressure.
- Workmanship and Protection: Both generations use titanium metal middle frame + Corning Gorilla Glass, but the S25 Ultra is upgraded to Corning Gorilla Armor 2, with stronger drop resistance and scratch resistance. At the same time, a low-reflection coating is added, making the screen clearer and less reflective in strong light, with purer black when the screen is off, completely improving the low-brightness problem of the previous generation.
- Color Matching and Details: In addition to retaining the classic Misty Gray and Misty Blue, the S25 Ultra adds a more delicate matte vegan leather version, with fewer fingerprints and a more advanced texture. The position of the S Pen slot remains unchanged, but the pen body is lighter, and the writing latency is further reduced, making daily note-taking and sketching more enjoyable.
Screen
Samsung screens have always been the industry benchmark. The S25 Ultra has been optimized on the basis of the already strong S24 Ultra.
From the basic parameters, S25 Ultra: 6.9-inch Dynamic AMOLED X, 1~120Hz adaptive refresh rate, peak brightness 3600nit; S24 Ultra: 6.8-inch Dynamic AMOLED X, 1~120Hz adaptive refresh rate, peak brightness 3200nit. The screen size is only 0.1 inches larger, which is not obvious in appearance, but the S25 Ultra has higher overall screen brightness, narrower bezels and larger visible area, which will further enhance the experience of watching videos and playing games.
At the same time, the S25 Ultra adopts the second-generation low-reflection coating, making the screen content clearer outdoors in sunlight, and the reflection is significantly reduced. Low-brightness strobing has also been optimized, making it more eye-friendly for use in dark light. The color calibration of the screen has been further upgraded, with higher native color accuracy, making photo editing and movie watching more realistic.
For ordinary users, the difference between the S24 Ultra and S25 Ultra may not be big, but for outdoor workers, photo editing users, and people who look at the screen for a long time, the advantages of the S25 Ultra will be more obvious.
Performance
The chip is the most hardcore upgrade of the S25 Ultra. The S25 Ultra uses the Snapdragon 8 Elite for Galaxy chip, while the S24 Ultra uses the Snapdragon 8 Gen 3 for Galaxy.
According to official and some actual measurement data, the CPU performance of the S25 Ultra is improved by about 37%, GPU graphics performance by about 30%, NPU AI computing power by about 40%, heat dissipation area by 40%, and the VC vapor chamber is larger.
In actual experience, the gap between the two is also very obvious. When large games run at full image quality, the S25 Ultra has a more stable frame rate, almost no frequency reduction, and lower body temperature; when continuously shooting 4K/8K videos, AI photo editing, and batch processing files, the S25 Ultra is faster and generates less heat; multiple apps are turned on at the same time, with stronger background retention capability, and the 16GB top version has almost no lag.
For daily use, the difference between the two is not big, but in the face of heavy loads, long duration, and AI-intensive tasks, the advantage of the S25 Ultra is overwhelming.
Camera System
In terms of photography, the upgrade goal of the S25 Ultra is very clear: maintain the high level of the main camera and telephoto lens, focus on improving the shortcomings of the ultra-wide angle, and raise the video capability to a new level at the same time.
The core upgrade is that the ultra-wide angle of the S25 Ultra has been upgraded from 12 million pixels of the S24 Ultra to 50 million pixels. When shooting landscapes, buildings and large scenes, there are more details, less edge distortion, greatly improved resolution, no more "smearing" of the previous generation, and the texture is still clear when zoomed in. It also adds a macro mode for more professional shooting of flowers and small objects. At the same time, the main camera hardware remains unchanged, but the night scene algorithm, white balance and dynamic range are further optimized, making night scenes brighter and cleaner, and skin tones more natural.
The video capability has also been greatly upgraded. The S25 Ultra has stronger highlight suppression and richer shadow details. A new audio eraser function is added to reduce ambient noise and retain human voices. For vlog creators and video bloggers, the S25 Ultra is almost a "portable cinema camera", while the video capability of the S24 Ultra is relatively conservative.
Battery Life and Charging
Both generations have the same battery capacity of 5000mAh and the same charging specifications. However, because the Snapdragon 8 Elite is more power-efficient, has better heat dissipation, less frequency reduction, and optimized screen energy efficiency, the battery life of the S25 Ultra will be 1-2 hours longer than that of the S24 Ultra, and the gap between the two will be more obvious in daily heavy use. Although the charging speed has not been improved, the battery life has been enhanced to a certain extent.
AI Functions
Both generations support Galaxy AI, but with a more powerful NPU, the S25 Ultra has more complete functions and faster response. It also adds and improves functions such as real-time call transcription, automatic meeting summary, photo editing, translation, writing, circle search, and daily smart notifications, integrating AI functions into daily office work, study, foreign language communication and photo creation.
S Pen and Detailed Experience
The S Pen is the soul of the Ultra series. Both the S24 Ultra and S25 Ultra come with a built-in S Pen as standard. But the S25 Ultra has also upgraded the S Pen: the pen body is lighter, the writing latency is reduced, the Bluetooth connection is more stable, it is more responsive in quick notes and quick previews, and daily annotations and sketches will be closer to the experience of real pen and paper.
In addition, the S25 Ultra has slightly adjusted the speaker sound quality, the bass is fuller, the external volume sound quality has been slightly improved, the overall system is smoother and safer, it supports the new generation of Wi-Fi 7, and the network speed and stability have become stronger.
Who is More Suitable for Upgrade?
For photography enthusiasts and mobile game players, the upgrades of the S25 Ultra in photography and screen can better meet your daily use needs. For some vloggers, the video updates of the S25 Ultra can better meet your video shooting and use needs. At the same time, for outdoor workers, the screen protection of the S25 Ultra allows you to better adapt to the use of the mobile phone screen outdoors.
After upgrading your mobile phone, remember to equip your phone with a suitable S25 Ultra phone case for extra protection. The aulumu S25 Ultra frosted case can meet most people's use needs. It is made of TPU material, which enhances the anti-shock performance of the phone case. The phone's own heat dissipation window and luminous effect make you don't worry about any problems when using outdoors; in addition, there is the aulumu S25 Ultra vegan leather phone case. For users pursuing high texture, this phone case is also not to be missed. The vegan leather ensures basic protection while adding an exclusive advanced leather texture to your phone case.
Conclusion
From the S24 Ultra to the S25 Ultra, Samsung does not pile up useless parameters, but only makes up for real shortcomings. It makes the hand feel lighter, the performance more stable, the ultra-wide angle perfect, the video professional, the screen and heat dissipation optimized to the extreme, and the AI truly practical. For ordinary users, the S25 Ultra is more comfortable, durable and better-looking. For professional users, the S25 Ultra has stronger performance, more complete imaging and higher efficiency. Galaxy S24 Ultra vs S25 Ultra: What's new is not only the parameters, but a more mature flagship experience in all aspects.
