Samsung Galaxy S25 Ultra reviewed in depth: camera, S Pen, AI features, battery, display, and whether the flagship price is actually justified in 2025.
Samsung Galaxy S25 Ultra Review: The Android Flagship That Has Everything — Including a Steep Price
Samsung’s Ultra line has always been about making a statement. More cameras, more screen, more power, more S Pen. More everything. The Galaxy S25 Ultra continues this tradition while adding a layer of on-device AI that Samsung is betting will redefine how people interact with their phones.
I used the S25 Ultra as my daily driver for five weeks. Here is what that experience actually taught me.
Design and Build
Samsung moved to a titanium frame with the S24 Ultra and refined it further here. The S25 Ultra is lighter than its predecessor at 218 grams, which is genuinely surprising for a phone this large. The flat display edges are a welcome change from the curved screens Samsung used for years — flat glass is simply easier to use without accidental touches.
The titanium finish feels premium without being slippery. The corners are slightly rounded, which helps the phone feel smaller in the hand than its 6.9-inch screen implies. The S Pen sits flush in its silo at the bottom, as always, with a satisfying click.
Titanium Black and Titanium Gray are the understated options. Titanium Blue is the bold choice and looks genuinely striking in person.
Display
The 6.9-inch Dynamic AMOLED display runs at 3088 x 1440 resolution with a 1 to 120Hz adaptive refresh rate. Peak brightness hits 2600 nits, which means this screen is readable in direct sunlight in a way that almost no other phone manages.
The 6.9-inch Dynamic AMOLED display runs at 3088 x 1440 resolution with a 1 to 120Hz adaptive refresh rate. Peak brightness hits 2600 nits, which means this screen is readable in direct sunlight in a way that almost no other phone manages.
If you care about display quality, this is one of the two or three best smartphone screens available at any price.
Performance
The Snapdragon 8 Elite chip inside the S25 Ultra is the fastest mobile processor available for Android phones at the time of this writing. Apps open instantly, multitasking is effortless, and the thermal management is significantly better than earlier Snapdragon 8-series chips that sometimes throttled under sustained load.
Gaming performance is exceptional. Demanding titles run at maximum settings without significant frame drops, and the phone stays warm but not hot even after extended gaming sessions.
Performance Ratings
Processor Speed ██████████ 10/10
Gaming Performance ██████████ 10/10
Thermal Management ████████░░ 8/10
RAM Efficiency █████████░ 9/10
Storage Speed ██████████ 10/10
Camera System: Where the S25 Ultra Shines
The S25 Ultra carries a quad-camera system: a 200MP main sensor, a 50MP periscope telephoto at 5x optical zoom, a 10x optical zoom camera, and a 12MP ultrawide. This gives you more versatile zoom range than any other flagship.
The 200MP main camera produces extraordinary detail in good light. Zoom in on a full-resolution shot and you can read text that was barely visible to the naked eye at capture distance. In everyday shooting at lower resolutions, the computational photography pipeline produces punchy, detailed photos that look great immediately.
The 5x and 10x telephoto cameras are a genuine differentiator. Whether you are photographing wildlife, sports, or just a distant detail you want to capture, having two optical zoom lengths gives you flexibility that single-lens zoom systems cannot match.
Low-light performance has improved meaningfully from the S24 Ultra. Night mode shots have less smearing, preserve more natural colors, and handle artificial light sources more realistically.
S Pen: Still a Differentiator
The S Pen is the feature that no other Android flagship offers, and it remains genuinely useful for specific use cases. Handwritten notes with the S Pen feel natural — the latency is low enough that the experience is not frustrating, and the precision is far better than any capacitive stylus.
Samsung’s AI-powered handwriting-to-text conversion has improved with the S25 Ultra. It handles messy handwriting with impressive accuracy and can convert entire pages of notes into formatted text. For students and professionals who prefer writing over typing, this is a real practical advantage.
Battery Life and Charging
The 5000mAh battery provides a full day of use for most people — typically 6 to 7 hours of screen-on time. Heavy camera use or sustained gaming will push you toward a charge by evening, but regular use easily makes it through a working day.
Charging speeds are a legitimate frustration. At 45W wired charging, the S25 Ultra charges slower than flagship competitors. Xiaomi and OnePlus offer 100W+ charging on phones that cost significantly less. This feels like an intentional limitation rather than a technical one.
Wireless charging at 15W and reverse wireless charging at 4.5W round out the options. Wireless charging to full takes about 90 minutes.
Galaxy AI Features
Samsung has heavily promoted Galaxy AI as a core feature of the S25 series. The real-world utility is mixed.
Circle to Search — where you can circle anything on your screen to search for it — is genuinely useful and I found myself using it regularly. Live Translate for calls works well in supported language pairs. The AI photo editing tools for removing objects and adjusting compositions are impressive for casual use.
Some features, like AI-generated note summaries and suggested responses, feel less essential. They work, but they do not change how you use the phone day to day. Samsung has built a solid foundation, and the features will improve as the models behind them improve.
Pros and Cons
✅ PROS ❌ CONS
✔ Best Android display available ✘ $1,299 starting price
✔ Exceptional camera versatility ✘ Slow 45W charging speed
✔ Fastest Android performance ✘ Galaxy AI features uneven
✔ S Pen remains unique ✘ Large size not for everyone
✔ Excellent build quality ✘ No real innovation over S24 Ultra
✔ Improved low-light cameras
Final Verdict
The Samsung Galaxy S25 Ultra is unquestionably one of the best Android phones ever made. The display, performance, and camera system are all best-in-class. The S Pen continues to offer something no competitor does.
The questions are: Is it meaningfully better than the S24 Ultra? Somewhat. Is it worth $1,299? That depends on whether you need the absolute best, or whether a very good phone at $400 less would serve you just as well. For most people, the honest answer is the latter.
But if you want the best Android phone without compromise, this is it.
Rating: 9.1 / 10
