Can a $799 Android flagship really hang with a $1,299 ultra-premium phone in 2024?
The OnePlus 12 is trying very hard to say yes to that question, and on a spec sheet, it honestly looks wild. Meanwhile, the Samsung Galaxy S24 Ultra is the polished, expensive favorite with an S Pen, titanium frame, and a marketing budget the size of a small country’s GDP.
But if you’re shopping with your own money, not review units, the real question is simpler: which one actually gives you more phone for what you pay?
Design and displays: premium vs practical overkill
On paper, both phones are monsters, but they wear their power very differently.
The Galaxy S24 Ultra goes full tank mode: flat 6.8-inch QHD+ Dynamic AMOLED 2X, 120Hz LTPO, peak brightness around 2,600 nits, and a nearly flat front with razor-sharp corners. The big upgrade this year is Gorilla Armor glass, which seriously cuts reflections and boosts outdoor visibility. Paired with the titanium frame and IP68 rating, it feels expensive, heavy, and unapologetically Samsung.
The OnePlus 12 is no slouch either. You get a 6.82-inch 3168×1440 LTPO AMOLED, 120Hz, and OnePlus claims up to 4,500 nits peak brightness in HDR scenarios. Colors are punchy, viewing angles are strong, and the subtly curved edges make the phone feel a bit slimmer than it actually is. It’s still glass and aluminum, also IP65, which is slightly behind Samsung on water resistance but good enough for real life.
In day-to-day use, both displays are fantastic, but they target different tastes. If you hate curved glass and love the more squared-off, note-style slab, the S24 Ultra wins. If you prefer a more comfortable hand feel and slightly sleeker look, the OnePlus 12 is less aggressive on the fingers.
Where Samsung pulls ahead is glare reduction and outdoor usability. The S24 Ultra’s anti-reflective treatment does more than any marketing slide can show. In direct sun, it’s just easier to see. The OnePlus 12 is very bright, but reflections can still be annoying.
Performance, software, and AI: raw speed vs long-term polish
Under the hood, both devices are top-tier, but with a twist.
The OnePlus 12 runs the Snapdragon 8 Gen 3 globally, with configurations going up to 16GB or even 24GB of LPDDR5X RAM and 512GB/1TB of UFS 4.0 storage. OxygenOS 14 on top of Android 14 is fast, aggressively tuned, and still one of the snappiest Android skins around. App launches are instant, animations are smooth, and thermal management is surprisingly mature compared to past OnePlus heat issues.
The Galaxy S24 Ultra uses the Snapdragon 8 Gen 3 for Galaxy (higher clocked CPU and GPU) in most markets, paired with 12GB of RAM and up to 1TB UFS 4.0 storage. One UI 6.1 on Android 14 is heavier than OxygenOS, but also more feature-packed.
Real-world performance? They’re both overkill. Genshin Impact at max settings, 120Hz scrolling in Chrome, rapid camera switching—neither phone struggles. The S24 Ultra’s tuned chip sees a small edge in some GPU-heavy scenarios, but it’s not a night-and-day difference.
The big separation is software strategy. Samsung is promising seven years of OS and security updates for the S24 Ultra. That’s Pixel-level commitment, and if they actually deliver, it’s a massive long-term value add. OnePlus is still lagging, sitting around four major Android updates and five years of security.
Then there’s Galaxy AI. Live Translate, Note Assist, Circle to Search (shared with Google), and a bunch of AI photo tools are baked in. Some are gimmicky; some are genuinely handy if you communicate across languages or live in your Notes app. OnePlus has fewer headline AI tricks—more classic performance-first Android rather than feature overload.
If you upgrade every year or two, the OnePlus 12’s raw speed and cleaner feel might appeal more. If you want one phone to last five to seven years, the S24 Ultra absolutely has the more convincing long-term story.
Cameras: OnePlus finally gets serious, Samsung stays safe
Camera is where OnePlus has historically trailed Samsung and Google. The OnePlus 12 tries to fix that with a Hasselblad-branded triple setup: a 50MP main (Sony LYT-808, OIS), 64MP 3x periscope telephoto with OIS, and 48MP ultrawide. On paper, it’s serious hardware.
The Galaxy S24 Ultra counters with a 200MP main sensor, a 10MP 3x telephoto, a 50MP 5x periscope, and a 12MP ultrawide. Samsung ditched the 10x periscope from the S23 Ultra in favor of this 5x, leaning more on in-sensor crop and AI processing.
In good light, the gap between these phones is smaller than ever. The OnePlus 12 produces detailed, contrasty shots with a more natural color profile than older OnePlus phones, especially in skin tones. The S24 Ultra leans into Samsung’s usual punchy look, with more aggressive sharpening and saturation.
Zoom is where Samsung still takes the crown. The S24 Ultra’s 5x periscope is cleaner and more reliable at mid-to-long distances, and its hybrid zoom up to 10x and beyond remains more usable than OnePlus’s 3x-based setup. The OnePlus 12’s 3x periscope is very good around 3–5x, but once you go past that, Samsung’s image processing advantage and 5x lens show.
Low light is closer than you might expect. The OnePlus 12’s main sensor pulls strong detail with restrained noise reduction, while Samsung brightens scenes more aggressively. Sometimes that looks impressive; sometimes it veers into overprocessed territory. If you like a slightly more realistic night look, you might actually prefer the OnePlus results.
Video still favors Samsung. The S24 Ultra offers more consistent stabilization, better audio, and tighter color matching between lenses. OnePlus has improved but still gets tripped up with exposure shifts and occasional focus hiccups.
If camera is your number one priority and you rely heavily on zoom and video, the S24 Ultra justifies its price better. If you mostly shoot standard photos and care about cost, the OnePlus 12 is finally not an obvious downgrade.
Battery life, extras, and value: where OnePlus bites hard
Battery is where OnePlus walks in and slaps Samsung around.
The OnePlus 12 packs a 5,400mAh cell with 80W wired charging in the US (100W in some regions) and 50W wireless charging. You can go from nearly dead to comfortable in under half an hour. Even with heavy use—120Hz on, QHD resolution, mixed gaming, social, and camera—it’s a legitimate all-day phone with gas left in the tank.
The Galaxy S24 Ultra sits at 5,000mAh with 45W wired and 15W wireless. Battery life is good to very good, especially with Samsung’s adaptive optimization and LTPO display handling. You can definitely get through a full day, but charging is slow by 2024 flagship standards. Once you’ve tasted OnePlus speeds, Samsung feels old.
Extras are where Samsung claws some ground back. You get the S Pen with low-latency handwriting, remote camera controls, and solid note integration. You also get DeX, excellent haptics, more consistent wireless charging behavior, and generally better accessory ecosystem support.
OnePlus counters with faster charging, a fan-favorite alert slider, and usually lower bloat out of the box. But no stylus story, no DeX equivalent, and weaker long-term accessory and software ecosystem.
Then there’s price. The OnePlus 12 starts around $799–$899 depending on region and configuration. The Galaxy S24 Ultra starts at $1,299 in many markets. Even with typical Samsung promos, you’re often paying several hundred dollars more for the Ultra.
If you care about resale and carrier deals, Samsung has an advantage. If you’re buying unlocked and want raw value, the OnePlus 12 is tough to argue against.
Which should you actually buy?
Here’s the blunt breakdown:
Buy the Galaxy S24 Ultra if you:
– Want the best overall camera system, especially for zoom and video
– Care about seven years of updates and long-term support
– Like the S Pen, DeX, and Samsung’s ecosystem hooks
– Prefer flatter displays, titanium build, and anti-reflective glass
Buy the OnePlus 12 if you:
– Want flagship performance and display quality without spending $1,299
– Care a lot about battery life and insanely fast charging
– Prefer a faster-feeling, lighter Android skin
– Can live with slightly weaker zoom and video performance
The OnePlus 12 doesn’t embarrass the Galaxy S24 Ultra, and that’s the real story. For hundreds less, you’re losing some polish, some ecosystem perks, and the very best zoom, but you’re gaining better charging, competitive cameras, and similar raw speed.
If you’re spec-conscious and price-sensitive, the OnePlus 12 is the smarter buy. If you want the fully loaded, no-compromise Android luxury phone—stylus, AI extras, camera versatility, and long-term updates—the Galaxy S24 Ultra still earns its position on top, even if your wallet hates you for it.