Samsung calls the Galaxy S25 Ultra “the most powerful Galaxy camera ever.” That’s technically accurate and contextually misleading in the same breath. The 200MP main sensor captures images with extraordinary resolution and the Space Zoom reaches 100× magnification. But the practical photography experience — the photos you’ll actually share — is not dramatically different from the S24 Ultra. That needs saying clearly before anything else.
What genuinely improved
The chassis is the most meaningful change. The S25 Ultra is thinner (0.34 in vs 0.35 in), lighter (0.46 lbs vs 0.48 lbs), and the corner radius matches the rest of the Galaxy line, which makes one-handed operation meaningfully more comfortable on a 6.9-inch phone. Snapdragon 8 Elite is a real performance upgrade — Samsung’s fastest Galaxy phone, by some margin — and the thermal management is improved enough that sustained video recording doesn’t cause the quality throttling that affected some S24 Ultra units.
Galaxy AI in practice
AI features are where Samsung has invested most heavily. Circle to Search works reliably and is genuinely useful — drawing a circle around text or an object in any app and getting a contextual search result is faster than the alternative. Note Assist summarises Samsung Notes entries with reasonable accuracy. Interpreter mode handles simultaneous translation in conversation at speeds that are practically useful. These aren’t gimmicks; they change real workflows.
The camera reality
The 200MP main sensor captures detail that crops usefully to smaller sizes, but Samsung’s processing makes aggressive decisions about colour, sharpening, and HDR composition that aren’t universally better. In direct A/B tests against the Google Pixel 9 Pro, the Samsung produces images that look more impressive in a quick scroll and less accurate when you examine fine detail. Neither approach is objectively correct, but users who care about natural colour rendition should be aware of the trade-off.
Space Zoom at 30× is genuinely sharp. Space Zoom at 100× is useful for identifying something at distance; the AI upscaling is apparent at 100% view and the photos are not shareable at that magnification in most cases.
The S Pen and seven-year commitment
The integrated S Pen remains the defining feature of the Ultra line for the users who need it. Handwriting, document annotation, and screen-off notes are fluid and accurate. Samsung’s seven-year OS update commitment is the best in Android and represents meaningful long-term value at this price point. If you’re choosing between an S25 Ultra and an iPhone 16 Pro and the S Pen matters to you, the Ultra wins that comparison decisively.
Verdict
The Galaxy S25 Ultra is Samsung’s best phone. It is a refinement of the S24 Ultra rather than a reinvention. If you own an S24 Ultra, skip it. If you own an S23 Ultra or older, the performance, camera, and chassis improvements justify the upgrade. The camera year Samsung promised is still ahead of us.