Nothing Phone (3a) Pro vs Samsung Galaxy S25 Ultra

Nothing Phone (3a) Pro

The 6.77-inch AMOLED display is a highlight, with 120Hz refresh rate, 3,000 nits peak HDR brightness, and 480Hz touch sampling. A massive upgrade from the Phone 2a's 1,300 nits, it delivers excellent outdoor readability, rich colors, and smooth scrolling. FHD+ resolution is standard for the price class but perfectly adequate.

• 3,000 nits peak HDR brightness with 120Hz refresh — excellent outdoor readability and smooth scrolling
• 480Hz touch sampling rate delivers responsive input — particularly noticeable in gaming and fast scrolling
• Nothing OS monochrome aesthetic underuses the AMOLED's color capabilities — feels understated for such a vibrant panel

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.

Nothing Phone (3a) Pro

The Snapdragon 7s Gen 3 handles everyday tasks — social media, browsing, multitasking — without issue. However, it's the weakest area of the phone. Benchmark scores (~810K AnTuTu) trail competitors like the Poco X7 Pro, and gaming at high settings can stutter. Some reviewers experienced occasional lag, while others found it perfectly smooth for non-gaming use.

• Smooth for everyday tasks — social media, browsing, and productivity run without noticeable stutter
• Gaming performance actually worse than the older Phone 2a — Snapdragon 7s Gen 3 trails Dimensity 7200 Pro in GPU tasks
• Occasional sluggishness and lag reported during extended use sessions

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.

Nothing Phone (3a) Pro

The camera system is the Nothing Phone (3a) Pro's biggest selling point. The 50MP main sensor with OIS delivers detailed, vibrant daylight shots, while the 50MP 3x periscope telephoto is virtually unheard of under $500 — producing excellent portraits and zoom shots. The 50MP selfie camera is above average. However, the 8MP ultrawide is a weak link, low-light performance divides opinion, and video is limited to 4K/30fps.

• 50MP 3x periscope telephoto is a genuine rarity under $500 — excellent for portraits with natural bokeh
• 50MP main sensor with OIS produces detailed, vibrant 12.5MP binned shots with good dynamic range in daylight
• 8MP ultrawide is a clear weak link — cannot record 1080p/60fps and lacks detail
• Video limited to 4K/30fps — no 4K/60fps option, and telephoto lacks 4K video entirely

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.