iQOO 15 Ultra and Red Magic 11 Air, Who Should FPS Players Choose?

How to choose a gaming phone in 2026? Four models tested and compared in real terms, the iQOO 15 Ultra pursues all-around balance, the Red Magic 11 Air is born specifically for FPS, while the OnePlus and Redmi each push hard on battery life and cost-effectiveness respectively. Your gaming habits determine which one is truly the "great value phone" for you.

The gaming phone market in 2026 has already become dazzlingly competitive. On one side is the iQOO 15 Ultra, an all-around heavy-duty flagship, stuffed with an active-cooling fan and a 7400mAh battery, starting at 6199 yuan; on the other side is the Red Magic 11 Air, a lightweight warrior built specifically for FPS players, with an under-display true full screen plus active cooling, commonly sold at 3699 yuan. The two machines differ by 2500 yuan, but both can keep you running at full frame rate in Genshin Impact.

The question arises—where exactly should your money go?

To make this clear, we use the OnePlus Ace 6 Supreme Edition and the REDMI K90 Supreme Edition as reference coordinates. Four machines, four routes, and once you've read through, you'll know in your heart.

01 The Fork in the Road—All-Around Flagship vs. FPS Specialist

The design philosophy of the iQOO 15 Ultra can be summed up in one sentence: it wants to give you the best of everything. The fifth-generation Snapdragon 8 Elite, the Ice Dome air-cooling system (built-in 17mm×17mm active-cooling fan, with a rotation speed up to 23000rpm), the self-developed Q3 gaming chip, a 2K Samsung M14 material 144Hz flat screen, physical shoulder keys, the Warhammer MAX dual-axis vibration motor—with this combination of moves, whether it's heavy-load map running in Genshin Impact, hundred-player team battles in Honor of Kings, or sound-based positioning in PUBG Mobile, it can pull everything to the same level.

Its target users are clear: people who "touch all three" of Genshin, Honor of Kings, and battle royale games, unwilling to compromise on any single game.

The Red Magic 11 Air takes another path. It is equipped with the Snapdragon 8 Elite, with a built-in ICE Wind 4.0 active-cooling fan (24000 rpm), a 6.85-inch 1.5K under-display true full screen, an instantaneous touch sampling rate up to 2500Hz, body weight controlled at around 207g, and a thickness of only 7.85mm. Its core is to serve FPS players—the under-display camera means the screen has no punch hole, so the aiming view is complete and unobstructed; the 2500Hz instantaneous touch sampling rate means that before your finger has fully pressed down, the bullet has already been fired.

The cost? The selfie effect of the under-display front camera... is at a QR-code-scanning level, don't expect to use it for video calls with your girlfriend.

The OnePlus Ace 6 Supreme Edition and REDMI K90 Supreme Edition respectively represent two other routes. The OnePlus is equipped with the Dimensity 9500 processor, an 8600mAh oversized battery plus 120W fast charging, taking the "Dimensity big battery low power consumption route"; the REDMI K90 Supreme Edition, with a first-sale price starting at 2799 yuan, packs active air cooling and the Snapdragon 8 Elite into one machine, taking the "three-thousand-tier active air-cooling cost-effectiveness route."

There is no absolute good or bad, only whether the route matches you. What you play every day determines which machine is your "great value phone."

02 Real Testing Reveals the Truth—Three Games Put Through Brutal Torture

Talking about specs alone is boring, let's get straight into the games.

Genshin Impact Heavy-Load Endurance Race

The iQOO 15 Ultra ran maps in Sumeru City for 30 minutes, with an average frame rate of 59.8fps, nearly full frame the entire time, with a maximum body temperature of 41.2℃. This result is in the first tier among 2026 flagship phones—the active-cooling fan directly expels heat through the air duct, remaining stable even outdoors in summer.

The Red Magic 11 Air also has active cooling, with an average frame rate of 59.2fps over 30 minutes of Genshin Impact at high graphics quality, and a body temperature of about 42.3℃. Although the frame rate is slightly lower than the iQOO, it wins on stability, with no obvious frame drops. The OnePlus Ace 6 Supreme Edition, relying on Fengchi gaming kernel optimization, is likewise able to stay near full frame, with body temperature controlled at around 41.7℃, and its power consumption performance is surprising—the 8600mAh battery capacity means you can play Genshin Impact continuously for over 6 hours.

Conclusion: In the heavy-load endurance race, the iQOO 15 Ultra is the most stable, the Red Magic 11 Air and OnePlus Ace 6 Supreme Edition are equally sufficient, and the gap between the three is beyond the perception range of ordinary players.

Honor of Kings Team Battle Responsiveness

Under the iQOO 15 Ultra's 144-frame ultimate graphics quality, the team battle frame rate is as steady as a straight line, with a body temperature of only 37.3℃. The advantage of physical shoulder keys in MOBA games is obvious—one-key combos are 0.1 seconds faster than manual operation, which is often the deciding factor between victory and defeat.

The Red Magic 11 Air's under-display punch hole has no impact at all on Honor of Kings, and the 2500Hz touch sampling rate makes skill release extremely responsive. The REDMI K90 Supreme Edition achieved an average frame rate of 143.9fps in a 3-hour continuous test, and considering its price starting at 2799 yuan, this cost-effectiveness is indeed a bit outrageous.

Conclusion: MOBA fans with a sufficient budget should choose the iQOO 15 Ultra, those with a limited budget should choose the REDMI K90 Supreme Edition, and the Red Magic 11 Air is equally excellent but somewhat of an overkill for the task.

PUBG Mobile Aiming and Field of View

This is the Red Magic 11 Air's absolute home turf. The under-display true full screen means the field of view has no punch-hole obstruction at all, and the moment you aim down sights, you already see more of the screen edge information than your opponent. The 2500Hz instantaneous touch sampling rate makes the aiming speed about 0.1 seconds faster than an ordinary phone—in FPS games, that 0.1 second is the difference between life and death.

The iQOO 15 Ultra uses physical shoulder keys and the fine detail of the 2K screen to compensate for the field-of-view loss caused by the punch hole, but it cannot be denied that in a pure aiming field-of-view contest, a punch-hole screen is naturally at a disadvantage.

Conclusion: For hardcore FPS players, the Red Magic 11 Air is the only correct answer. If you mainly play Delta Force or PUBG Mobile, don't hesitate.

03 Put Down the Phone—Is It Comfortable to Use Day to Day

No matter how good the gaming benchmark scores look, the time you spend holding your phone every day—scrolling WeChat, scrolling short videos, checking maps, scanning codes to pay—is definitely longer than the time spent gaming. So the daily experience cannot be ignored.

The iQOO 15 Ultra weighs 227g and is 8.7mm thick, and on the premise of packing in a 7400mAh battery and active-cooling fan, this weight control can be called an engineering miracle. The OriginOS system has nothing to fault in daily fluency, and the combination of 100W wired plus 40W wireless charging takes it from 0 to 100% in just 32 minutes. In terms of photography, the 50MP IMX921 main camera plus a 50MP periscope telephoto, with vivo's imaging algorithms trickled down, is entirely sufficient for everyday shooting—apart from a gap compared to professional imaging flagships, there's no obvious shortfall. It's suitable as a primary phone.

The Red Magic 11 Air weighs about 207g and is 7.85mm thick, feeling lighter in hand than the iQOO. But the system leans toward gaming, and Red Magic Studio's daily notification management and app adaptation have some minor flaws. The camera is at QR-code-scanning level, don't expect night shots to turn out well. Bypass charging is a highlight—when plugged in during gaming, the current is supplied directly to the motherboard, reducing battery heat and wear, but there's no wireless charging. If your main purpose for buying it is gaming, none of this is a problem.

The OnePlus Ace 6 Supreme Edition weighs 217-219g, the Dimensity 9500's power efficiency is excellent, and with 8600mAh plus 120W fast charging, its daily battery life is the best among the four machines, and full-rated IP68/IP69 waterproofing is also reassuring.

The REDMI K90 Supreme Edition has high cost-effectiveness, but the body material and texture are somewhat inferior, and system ads need to be manually turned off, suitable for users willing to spend some time tinkering.

04 The Final Chart—Matching by Budget

Price is the ultimate deciding factor. Below are the reference prices for the four models as of now (August-September 2026):

iQOO 15 Ultra: starting at 6199 yuan (16+256GB), top spec 24+1TB version 8199 yuan

Red Magic 11 Air: commonly sold starting at 3699 yuan (12+256GB), as low as 2999 yuan after national subsidy

OnePlus Ace 6 Supreme Edition: starting at 3499 yuan (12+256GB), starting at 2999 yuan after national subsidy

REDMI K90 Supreme Edition: first-sale starting at 2799 yuan (12+256GB)

Purchase advice in one sentence:

Budget 6000+ and play all three of Genshin, Honor of Kings, and battle royale → iQOO 15 Ultra, currently the only gaming flagship achieving a perfect balance between performance, cooling, battery life, screen, and photography.

Mainly play battle royale/Delta Force with a budget under 4000 → Red Magic 11 Air, under-display true full screen plus 2500Hz touch sampling, the ultimate answer for FPS players.

Budget 3000 and value Genshin battery life → OnePlus Ace 6 Supreme Edition, 8600mAh battery plus Dimensity 9500, battery life crushing the field.

Budget 3000 and want to touch everything → REDMI K90 Supreme Edition, 2799 yuan buys active air cooling plus Snapdragon 8 Elite, the cost-effectiveness ceiling.

Don't be misled by benchmark scores. Choosing based on the game you play the most every day is the right path.

In the 2026 gaming phone market, there is no absolute "king of machines," only the one that understands you best. The iQOO 15 Ultra is an all-around heavy-duty hexagonal warrior, the Red Magic 11 Air is an FPS-specialized lopsided genius—a price difference of 2500 yuan, but completely different directions.