iPhone 17 Pro Max vs Samsung Galaxy S25 Ultra

iPhone 17 Pro Max

The 6.9-inch Super Retina XDR display pushes peak brightness to 3,000 nits with ProMotion 120Hz, making it the most sunlight-readable phone on the market.

• 3,000-nit peak brightness is a major jump that makes the phone perfectly readable even in direct sunlight — the best outdoor display on any phone
• Display stays brighter for longer under sustained sunlight thanks to the vapor chamber thermal management
• Color accuracy and HDR performance remain class-leading with excellent DCI-P3 coverage

Samsung Galaxy S25 Ultra

Virtually every reviewer calls the S25 Ultra display the best on a smartphone, thanks to the Gorilla Armor 2 anti-reflective coating that practically eliminates glare in sunlight, the 2,600-nit peak brightness, and the sharp 1440p LTPO panel. A few reviewers note PWM dimming only reaches 480 Hz and peak auto-brightness doesn't always sustain.

• The anti-reflective coating makes it one of the easiest phones to use in direct sunlight and held up well to scratches over a week of abuse.
• The Gorilla Armor 2 panel strikes an almost perfect balance between glossy and matte, with 2,600-nit peak brightness that dazzles in any environment.
• The S25 Ultra's anti-reflective screen eclipses every other smartphone right now, especially under harsh sunlight.
• After six months of use it is simply put: the best display I've ever seen on mobile — the bezels, brightness and colors are unbeatable.
• The low-glare, bright LTPO display is a strength, but PWM dimming is only at 480 Hz which can bother sensitive eyes.
• The display still only hits around 850 nits with the manual brightness toggle, so you rarely see the full peak brightness outside of HDR.
• Even without a huge display upgrade, this is still absolutely one of the best displays — super crisp, very bright, high-refresh-rate LTPO.
• Slimmer bezels grow the screen to 6.9 inches without making the body larger, and the Gorilla Armor 2 glass looks great.
• r/Android commenters who upgraded from the S23 Ultra call out the titanium body and the non-reflective screen as the two features they actually notice day-to-day.

iPhone 17 Pro Max

The triple 48MP camera system delivers refined computational photography with improved low-light performance, though hardware changes are evolutionary rather than revolutionary.

• All three rear cameras now use 48MP sensors, providing consistently high detail across ultrawide, main, and telephoto shots
• Low-light photography takes a meaningful step forward with cleaner noise handling and better night sky detail
• Video recording remains the gold standard — no Android phone comes close to the ProRes and LOG workflow quality
• Compared to the 16 Pro Max, the camera hardware upgrades feel incremental — the differences are often only visible in side-by-side comparisons

Samsung Galaxy S25 Ultra

The only new hardware is a 50MP ultrawide with an f/1.9 aperture and autofocus — the 200MP main, 10MP 3x and 50MP 5x telephoto lenses all carry over from the S24 Ultra. Reviewers agree the ultrawide is a genuine improvement and low-light video processing is noticeably cleaner, but colors still skew saturated and shutter lag persists — a complaint echoed on Reddit by would-be switchers. Samsung's imaging is now slightly behind the Vivo X200 Pro and Xiaomi 15 Ultra but remains top-tier.

• The new 50MP ultrawide delivers more fine detail than the S24 Ultra's sensor, and the wider f/1.9 aperture helps keep noise low.
• Some low-light ultrawide shots are sharper than both the Google Pixel 9 Pro and iPhone 16 Pro Max, but the rest of the cameras feel static.
• Samsung's penchant for slightly overboard sharpening is still visible, though the new ultrawide beats what the Pixel 9 Pro can do.
• Photos straight from the camera are a little too natural-looking, and most shots need editing to look their best.
• The 3x optical zoom uses a small, outdated sensor and is now a weak point of the camera setup.
• All cameras stay the same as on the S24 Ultra except the ultrawide, and Samsung is relying on the new ISP to improve quality.
• The S25 Ultra takes better zoom and ultrawide photos than last year with cleaner skin tones, and shutter lag is finally put to bed.
• Samsung has aimed for consistency, and after six months the stills are vibrant yet muted — pictures up to 15x zoom remain tack-sharp.
• The shutter activation is slow and not as instant as competing phones — a persistent Galaxy flaw Samsung should address.
• Side-by-side low-light video clips versus the S24 Ultra show clearly more fine detail from the S25 Ultra.
• iPhone-curious switchers on r/apple still call out shutter lag as the thing holding them back: 'I just want to open the camera and snap a picture right away. I don't want to have a motion blurred photo.'

iPhone 17 Pro Max

The A19 Pro chip combined with vapor chamber cooling delivers best-in-class sustained performance with 40% better thermal management than the previous generation.

• A19 Pro benchmarks show a meaningful single-core leap and the best sustained performance of any smartphone tested — no throttling even under prolonged loads
• Gaming performance with vapor chamber cooling is noticeably smoother, with more consistent frame rates in demanding titles
• On-device AI processing through Apple Intelligence is fast and responsive, with live transcription and summarization working seamlessly

Samsung Galaxy S25 Ultra

The Snapdragon 8 Elite for Galaxy delivers a meaningful generational jump in both CPU and GPU, rivaling Apple's A18 Pro and outscoring the iPhone 16 Pro Max in multi-core. The 40 percent larger vapor chamber keeps the phone cool even under sustained gaming loads. The r/apple thread citing a 36% GPU lead over the iPhone 16 Pro Max generated heated discussion, with most commenters conceding the Snapdragon chip is genuinely fast even if they still wouldn't switch.

• The phone benchmarks crazy high, rivaling Apple's A18 Pro — a little lower in single core but higher in multi-core.
• Samsung's 40 percent larger vapor chamber keeps the phone from warming up in normal use and benchmarks are up 30-40 percent depending on the task.
• Playing Genshin Impact at max settings for nearly an hour produced no stutters and no hot spots — a noticeable improvement over the S24 series.
• Multi-core Geekbench hits 9,793 versus the iPhone 16 Pro Max at 8,772 — the S25 Ultra pulls ahead thanks to extra cores and 12GB of RAM.
• The Snapdragon 8 Elite is the most welcome generational upgrade this year, with a boosted 'for Galaxy' variant delivering more CPU headroom than the standard chip.
• Under heavy loads the S25 Ultra becomes a bit power-hungry, which can cause faster-than-expected battery drain when multitasking or running demanding apps.
• Everyday tasks run smoothly and there was no meaningful performance difference versus the OnePlus 13 running the same chip.
• Apple users on r/apple concede Apple has fallen behind on GPU performance, saying 'competition is good' after the S25 Ultra posted a roughly 36% GPU lead in benchmarks.