If you’re looking at the Galaxy S24 Ultra, you’re probably also eyeing at least one of these: Asus ROG Phone 8 Pro, OnePlus 12, or Google Pixel 9 Pro XL. On paper they all look like monsters, but only one of them actually makes sense for your wallet and how you use your phone.
The short version: Samsung still wins as the do-everything, keep-it-forever option. But if you care more about gaming, raw value, or camera consistency than AI marketing slides, the competition is very real.
Price and availability: who’s really “expensive” here?
Let’s start with what hits you first: price.
- ROG Phone 8 Pro: starts at $1,200 for 512GB/12GB, or 1TB/24GB at a higher price. You’ll mostly be buying it online from Asus or Amazon, not carriers.
- Galaxy S24 Ultra: starts at $1,300 for 256GB/12GB, rising with storage. The sticker price is higher, and you get half the base storage of the ROG for $100 more.
- OnePlus 12: $800 base, with an extra $100 bumping you to more RAM and double the storage. OnePlus also throws in a $100 recycling discount for literally any trade-in.
- Pixel 9 Pro XL: starts at $1,099 for 128GB and goes up to $1,549 for 1TB.
On pure MSRP, Samsung is the worst deal. But that’s only half the story.
The S24 Ultra is basically everywhere: all major carriers, big-box retailers, Samsung direct. It’s also almost always heavily discounted via trade-ins and carrier promos, often undercutting the ROG 8 Pro in practice.
The ROG, by contrast, is niche and rarely on sale. OnePlus and Google sit in the middle: wide online and retail reach, but no deep carrier lock-in deals like Samsung enjoys.
If you want a low-friction, financed purchase through your carrier, Samsung wins. If you’re paying cash and care about value, the OnePlus 12 absolutely embarrasses the S24 Ultra’s MSRP.
Hardware and design: glass, titanium, and gamer LEDs
All four are big slabs aimed at people who actually like large phones.
Galaxy S24 Ultra:
– 6.8-inch 1440p AMOLED, 1–120Hz
– Max brightness around 2,600 nits
– Gorilla Armor front (less reflective than Victus 2), Victus 2 back
– Titanium frame, IP68
– Boxy, flat display and sides, individual camera rings
– Built-in S Pen in the bottom edge
ROG Phone 8 Pro:
– 6.78-inch 1080p AMOLED, 1–165Hz
– Max brightness 2,400 nits
– Gorilla Glass Victus 2 front
– Aluminum frame, plastic back
– More rounded, chunkier camera bump, and a programmable LED display on the back
– Headphone jack and two USB-C ports (bottom + left side)
In person, the S24 Ultra is the more premium-feeling object. Titanium, Gorilla Armor, and the anti-reflective front glass matter in daily use. The less reflective panel means the phone doesn’t need to max out brightness as often outdoors.
The ROG fights back with ergonomics and features that actually matter if you game a lot: rounded corners, landscape-friendly side USB-C, and a headphone jack. Plus the LED matrix on the back if you live for RGB.
OnePlus 12:
– Striking rear camera bump with Hasselblad branding
– Gorilla Glass Victus 2
– IP65 instead of Samsung’s IP68
– Fewer colors but the Flowy Emerald finish stands out
Pixel 9 Pro XL:
– Aluminum frame, Victus 2 on the rear
– Big but slightly slimmer than Ultra, with rounded corners
– Camera visor shrunk into an oval, still very recognizably Pixel
On durability and materials, Samsung edges everyone. On comfort and character, you could argue ROG, OnePlus, and Pixel all have stronger visual identities than the S24 Ultra’s “expensive rectangle” approach.
Displays: brightness, refresh rates, and glare wars
All four phones have excellent OLED panels. The differences are about priorities, not quality.
ROG Phone 8 Pro:
– 6.78-inch 1080p AMOLED
– 165Hz adaptive refresh (1–165Hz)
– Up to 2,400 nits
Galaxy S24 Ultra:
– 6.8-inch 1440p Dynamic AMOLED 2X
– 1–120Hz
– Up to 2,600 nits and Gorilla Armor’s 75% lower reflectivity versus Victus 2
On paper, Samsung wins resolution and peak brightness; ROG wins on refresh rate. In real use, 1440p vs 1080p and 165Hz vs 120Hz aren’t night-and-day unless you really look for it. The glass treatment is the big practical difference. Gorilla Armor’s anti-glare makes a bigger impact outdoors than the 200 extra nits.
OnePlus 12:
– Claims a wild 4,500-nit peak, but that’s likely a single-pixel lab number
– In auto brightness, the Galaxy tends to be easier to see
– Supports Dolby Vision, HDR, Pro XDR
– Aqua Touch makes the panel more responsive with moisture on screen
Pixel 9 Pro XL:
– 6.8-inch LTPO OLED, 120Hz
– 2992 x 1344 resolution
– 2,000-nit high brightness mode, 3,000-nit peak
– Protected by Victus 2
Realistically, all four are flagship-level displays. OnePlus and Google push ridiculous peak numbers; Samsung counters with the smartest use of glass; Asus leans into ultra-high refresh. You’re not getting a bad panel either way.
Performance and thermals: Snapdragon muscle vs Tensor brains
Under the hood, these phones split into two camps.
Snapdragon 8 Gen 3 phones:
– ROG Phone 8 Pro
– Galaxy S24 Ultra (with a slightly different core clock balance)
– OnePlus 12
Tensor G4 phone:
– Pixel 9 Pro XL
The ROG Phone 8 Pro and S24 Ultra share Snapdragon 8 Gen 3 and UFS 4.0 storage. Both are extremely fast in day-to-day use. The real difference is thermal behavior under sustained loads.
The ROG is designed for gaming:
– Stays cooler for longer, even without the clip-on cooler
– More consistent frame rates during long sessions
– Optional attachable cooler adds more physical triggers and even better thermals
The S24 Ultra can absolutely run any modern mobile game at high settings, but it doesn’t have the same thermal headroom or hardware assists as the ROG.
OnePlus 12 also uses Snapdragon 8 Gen 3, with:
– Up to 16GB of RAM on higher tiers
– A new CPU-Vitalization engine to balance speed and efficiency
– Dual Cryo-velocity Cooling System with a large vapor chamber
On paper and in theory, OnePlus can match or slightly exceed Samsung in sustained performance thanks to its aggressive cooling and tuning. In normal use, it’s hard to feel, but if you push your phone hard, the OnePlus 12 is tuned for speed.
Pixel 9 Pro XL goes another route:
– Tensor G4 with 16GB of RAM
– Not chasing benchmark crowns
– Focused on running Google’s AI and camera features reliably
– Improved efficiency and lower heat compared to Tensor G3
It won’t beat Snapdragon 8 Gen 3 in raw power, but it doesn’t need to. For everyday use and AI-heavy workloads, Tensor G4 is built to be “fast enough” and cooler than before.
If you want the absolute raw performance ceiling, the Snapdragon phones win, with ROG and OnePlus ahead on thermals. If you care more about smart features and don’t live in benchmarks, Tensor G4 is looking finally mature enough to be taken seriously.
Battery and charging: marathon vs refill speed
All four phones deliver strong battery life; the interesting part is how they recharge.
ROG Phone 8 Pro:
– 5,500mAh battery
– 1080p screen helps efficiency
– Realistically pushes two days of normal use
– 65W wired charging via either USB-C port
– 15W Qi wireless charging
ROG is the battery king here, especially for gaming marathons. The extra capacity and lower resolution panel are doing real work.
Galaxy S24 Ultra:
– 5,000mAh battery
– Better real-world endurance than older Ultras
– Can last more than a full day even under heavy use; up to two for lighter users
– 45W wired charging
– 15W wireless, 4.5W reverse wireless
Samsung’s problem isn’t battery life; it’s charging ambition. 45W isn’t terrible, but it’s not flagship-leading either. Worse, the included cable doesn’t even support full 45W, and there’s no charger in the box. That’s inexcusable at this price.
OnePlus 12:
– Excellent overall endurance; often edges out the S24 Ultra in mixed real-world use
– 80W SuperVOOC wired charging in the US
– Charger and capable cable are included in the box
– Around 50% in ~15 minutes, full charge a bit over 30 minutes
This is brutal for Samsung. OnePlus is basically refilling from empty to 100% in the time Samsung is doing a big top-up. There’s a long-term caveat: faster charging can degrade batteries faster, so using a slower charger overnight is still smart.
Pixel 9 Pro XL:
– 5,060mAh battery
– Easily handles a full day of heavy use
– 37W wired charging
– 23W wireless with Pixel Stand; 12W with standard Qi
– Reverse wireless charging support
The Pixel doesn’t break any charts in speed, but it’s solid across the board. Samsung remains the slowest wired charging experience relative to its price and positioning.
Gaming: S Pen vs clip-on cooler vs smart thermals
If gaming is your priority, the hierarchy is clear.
ROG Phone 8 Pro is the only true gaming-first device:
– Air Triggers on the right-side corners act as mappable shoulder buttons
– Optional attachable cooler adds two more physical triggers
– Dual USB-C (including a side port) means you can charge in landscape without wrecking your grip
– Headphone jack for low-latency audio
– Strong gaming software suite with fine-grained controls
This isn’t subtle. Asus built an actual handheld that also functions as a phone.
Galaxy S24 Ultra:
– Snapdragon 8 Gen 3 and 120Hz screen make it more than capable for gaming
– Samsung has its own gaming tools, but they’re not as deep as Asus’ setup
– Thermals are good, but not tuned for hardcore sustained sessions like ROG
OnePlus 12:
– Same Snapdragon 8 Gen 3, plus serious cooling
– Fast panel, strong performance, but no gaming-specific hardware like triggers
Pixel 9 Pro XL:
– Tensor G4 can play current titles fine
– No gaming focus, no extra hardware features, just solid baseline performance
If you live in Genshin, CoD Mobile, or emulators, the ROG Phone 8 Pro is in its own category. The others are “great normal phones that also game well.”
Cameras: spec sheets vs consistency
This is where strategies really diverge.
ROG Phone 8 Pro:
– 50MP main
– 32MP 3x telephoto
– 13MP ultrawide
The cameras are finally respectable for a ROG device. They produce good photos in most lighting and are fine for the target audience. But they’re not aiming to beat Samsung or Google; they’re aiming to not be embarrassing.
Galaxy S24 Ultra:
– 200MP main
– 10MP 3x telephoto
– 50MP 5x telephoto
– 12MP ultrawide
On paper and in many situations, the S24 Ultra wins:
– Versatile zoom (3x + 5x)
– Strong night mode, especially on the main sensor
– Plenty of modes and features; shooting can be fun
But the S24 Ultra has a recurring issue: motion. For the third year in a row, it struggles with moving subjects, even in decent light. Blurry shots show up too often when photographing kids, pets, or anything that won’t sit still.
OnePlus 12:
– 50MP primary
– 64MP 3x telephoto
– 48MP ultrawide
– 32MP wide selfie camera
– Hasselblad-tuned system
OnePlus 12 quietly lands among the best camera phones:
– Versatile, high-res lens set
– Strong image processing without leaning on flashy AI tricks
– Lots of manual and auto modes for enthusiasts
– Consistent results across different conditions
It doesn’t have Samsung’s crazy 200MP headline, but it arguably gives more reliable output overall.
Pixel 9 Pro XL:
– 50MP main (f/1.7)
– 48MP 5x periscope telephoto
– 48MP ultrawide
– 42MP selfie camera
– 8K/30 and 4K/60 video
The Pixel is still the camera consistency king:
– Regularly sharp images, even with motion
– Excellent across lighting conditions
– Very few “bad” shots
The S24 Ultra can absolutely produce stunning photos, but the Pixel 9 Pro XL tends to produce great photos more often. If your priority is nailing the shot instead of playing camera roulette, Pixel takes this round.
Software, AI, and updates: seven-year wars
All four run Android 14 at launch. How they handle it is very different.
ROG Phone 8 Pro:
– Android 14 with Zen UI
– Light skin with Asus apps and gaming features
– Unique option to mix and match stock Android UI elements (notification shade, call UI, volume slider, power menu, quick settings) with Asus’ versions
– Lets you choose between an “all-Google,” all-Asus, or hybrid layout
– Software support is weak: only two years of Android updates, four years of security
The flexibility is fantastic. The support window is not. Android 16 will be its last major update.
Galaxy S24 Ultra:
– Android 14 with One UI 6.1
– No stock UI option, but deep customization via Samsung’s tools
– Good Lock and Good Guardians offer advanced tweaking for power users
– Galaxy AI based on Google’s Gemini Pro and Imagen 2
– Features include Live Translate, Interpreter, Browsing, Chat & Writing Assist, photo object/shadow removal, transcription and summaries
– Seven years of Android and security updates, matching Google’s policy
Samsung is betting hard on AI as its key differentiator. To actually get the most out of Galaxy AI, you need to live inside Samsung’s apps and keyboard, which some people hate. But the long support window means this phone is designed to still be viable into 2031.
OnePlus 12:
– OxygenOS, notably different from stock Android
– No real AI push; focuses on performance and traditional features
– Moderate learning curve if you haven’t used recent OnePlus phones
– Four Android updates plus one extra year of security patches
– OnePlus has publicly mocked the idea of seven-year support, so don’t expect it to match Samsung or Google later
OxygenOS works well once you learn it, but the update policy is behind the curve now.
Pixel 9 Pro XL:
– Android 14 with Pixel UI
– Mostly stock with Google’s design language
– Heavy integration of AI features: Gemini, Magic Editor, Zoom Enhance, Add Me, Video Boost, Pixel Studio
– Gemini replaces Google Assistant and is reported to be faster and more accurate than the old assistant
– Seven years of Android and security updates
On pure software vision, this is the cleanest, most Google-forward Android experience. If you actually want the AI features Google keeps talking about, Pixel is where they feel most native.
In update terms, Samsung and Google are now tied at the top. Asus and OnePlus feel behind, especially on a device like the ROG 8 Pro that costs over a grand.
So which big Android phone should you actually buy?
Each of these phones is good, but they’re not interchangeable.
Get the Galaxy S24 Ultra if:
– You want a jack-of-all-trades phone with almost no major weaknesses
– The S Pen, DeX, and multi-window tools matter for your work
– You want a widely available device with excellent trade-in deals
– You care about seven-year updates and long-term viability
– You like the idea of Galaxy AI and can live with Samsung’s apps
It’s expensive, the charging story is underwhelming, and the camera is annoyingly inconsistent with motion. But as a complete package, it’s still one of the safest Android buys.
Get the Asus ROG Phone 8 Pro if:
– Gaming is your top priority, full stop
– You want triggers, a clip-on cooler, side USB-C, and a headphone jack
– You want marathon battery life and stable frame rates
You are trading away long software support and camera excellence. If you’re okay with that, this is the best mobile gaming hardware package in the group.
Get the OnePlus 12 if:
– You want flagship performance and cameras without the $1,300 tax
– You care about charging speed and appreciate that the charger is included
– You want one of the best all-rounders for $800–$900
The OnePlus 12 does almost everything the S24 Ultra does, often better, for a lot less money. Its biggest weaknesses are update length and lack of AI bells and whistles.
Get the Pixel 9 Pro XL if:
– You value camera consistency over raw specs
– You like rounded, slightly slimmer hardware with strong one-handed ergonomics (for its size)
– You want Google’s AI features in their most natural home
– You care about seven years of updates but don’t need Snapdragon 8 Gen 3 power
Google’s big Pixel is probably the most balanced of the four if you’re okay with “fast enough” instead of “fastest,” and you want software smarts plus reliable photography.
The cautiously optimistic view here: Android flagships have finally matured into clear niches instead of everyone blindly chasing the same spec sheet. The S24 Ultra is still the default “do everything” choice, but for the first time in a while, it’s not obviously the smartest buy for every kind of power user.
Have thoughts on this? Share them in the comments.