Samsung's Galaxy S series has always been the benchmark for Android flagships, and the S25 Ultra raises that bar significantly. The combination of Qualcomm's Snapdragon 8 Elite processor, a redesigned camera system, and a refined titanium chassis makes this the most complete Android phone available today.
Design & Build
The S25 Ultra ditches the angular edges of its predecessor for a more rounded, ergonomic form. The titanium frame — the same grade used in aerospace applications — feels extraordinarily solid without adding unnecessary weight. At 218g, it's lighter than the S24 Ultra despite the larger 6.9-inch display. The integrated S Pen silo remains, though the stylus itself has been slimmed down for a more natural writing feel.
Display
The 6.9-inch Dynamic AMOLED 2X display is the best screen Samsung has ever put in a phone. Peak brightness hits 2,600 nits — enough to remain readable in direct sunlight — while the 1–120Hz adaptive refresh rate preserves battery life during static content. The QHD+ resolution (3088×1440) makes text razor-sharp and video genuinely cinematic.
Camera System
The quad-camera system is where the S25 Ultra truly separates itself. The 200MP main sensor with variable aperture (f/1.7–f/2.8) captures extraordinary detail in all lighting conditions. The 50MP 5× periscope telephoto delivers lossless zoom that rivals dedicated cameras. A new 10MP 3× telephoto fills the gap between wide and long, and the 12MP ultrawide captures 120° with minimal distortion.
Video capabilities are equally impressive: 8K at 30fps, 4K at 120fps, and a new Log video mode for professional color grading. Samsung's AI-powered scene optimization has been refined to feel less aggressive and more natural.
Performance & Battery
The Snapdragon 8 Elite is the fastest mobile chip available on Android, and the S25 Ultra makes full use of it. Gaming, video editing, and multitasking are all effortless. The 5,000mAh battery comfortably lasts a full day of heavy use, and 65W wired charging recovers 50% in 20 minutes. Wireless charging at 25W and reverse wireless charging round out the package.
Samsung DeX and Productivity
One underrated strength of the S25 Ultra is Samsung DeX — the desktop mode that turns the phone into a full PC when connected to a monitor via USB-C. With the Snapdragon 8 Elite's processing power, DeX is genuinely usable for document editing, spreadsheets, and even light coding. For business travellers who want to carry one device, it's a compelling proposition that no other Android phone matches.
Verdict
The Galaxy S25 Ultra is the definitive Android flagship. It's expensive at $1,299, but it delivers in every category: display, camera, performance, and build quality. The S Pen, DeX support, and seven years of updates make it the most versatile smartphone available. If you're in the Android ecosystem and want the best, look no further.
S Pen: Still the Best Stylus on a Phone
The integrated S Pen remains the S25 Ultra's most distinctive feature and the one that most clearly separates it from every other Android flagship. The 2.8ms latency is imperceptibly fast — writing on the display feels like writing on paper. Samsung Notes has matured into a genuinely capable note-taking app, and the AI-powered handwriting-to-text conversion is accurate enough for practical use. For students, executives, and anyone who takes handwritten notes, the S Pen alone justifies the premium over the standard S25.
The stylus also enables precise photo editing directly on the phone — selecting subjects, drawing masks, and annotating images with a level of precision that a finger simply cannot match. For photographers who do light editing on the go, this is a meaningful capability.
AI Features: Galaxy AI in Practice
Samsung's Galaxy AI suite has expanded significantly with the S25 Ultra. Live Translate handles real-time phone call translation across 16 languages — a feature that sounds gimmicky until you actually need it. Circle to Search, developed in partnership with Google, lets you circle any object on screen to instantly search for it — useful for shopping, identifying plants or animals, and looking up unfamiliar text.
The AI photo editing tools are genuinely impressive. Generative Edit can remove objects and fill the background convincingly, resize subjects, and even extend the frame of a photo. The results are not always perfect, but they are good enough to replace dedicated editing apps for casual use. For social media content creators, these tools are a significant time-saver.
Software and Longevity
Samsung's commitment to seven years of OS updates and security patches is the longest in the Android ecosystem and matches Apple's support window for iPhones. For a $1,299 phone, this is a critical factor — it means the S25 Ultra purchased today will receive software support until 2032, making it a genuinely long-term investment rather than a device you'll need to replace in three years.
One UI 7 is Samsung's most refined software release yet. The interface is cleaner, animations are smoother, and the AI features are better integrated than in previous versions. The notification system has been redesigned to be less intrusive, and the multitasking improvements make the large display genuinely useful for productivity.
The Competition
The S25 Ultra's main competition comes from Apple's iPhone 16 Pro Max ($1,199), Google's Pixel 9 Pro XL ($1,099), and the OnePlus 13 ($899). Against the iPhone, it wins on display size, camera versatility, and the S Pen — but loses on software longevity consistency and ecosystem integration for Apple users. Against the Pixel, it wins on display quality and camera hardware — but the Pixel's computational photography and pure Android experience have their own advocates. Against the OnePlus 13, the S25 Ultra wins on display quality, camera system, and the S Pen — but the OnePlus charges faster and costs $400 less.