When two brands known for raw performance and flagship-level features launch devices at nearly the same price, comparisons become inevitable. And this time, the battle is fierce: OnePlus 15 vs. iQOO 15.

Both phones come packed with the Snapdragon 8 Gen 5, premium displays, massive batteries, super-fast charging, and top-end cameras. But the real question is simple:

Which one should you buy?

After analyzing all the data, tests, and real-world usage, the conclusion becomes clear:

✔ iQOO 15 = Best for gaming, raw performance & thermals
✔ OnePlus 15 = Best all-round flagship experience with better cameras, battery & software

Let’s break down the entire comparison in the easiest-to-understand way.

🔥 Performance & Gaming: iQOO 15 Takes the Crown

If your priority is gaming, stable thermals, and peak performance, the iQOO 15 is easily the winner.

Same Processor, Different Results

Both phones use the powerful Snapdragon 8 Gen 5, but the real difference comes from cooling and optimization.

Thermal Management

• OnePlus 15: 5,731 mm² Vapor Chamber

• iQOO 15: 8,000 mm² Vapor Chamber (a massive upgrade)

The result?
iQOO stays cooler, performs more consistently, and maintains stability during long gaming sessions.

Benchmark Performance

• OnePlus 15 → ~3.6M on AnTuTu

• iQOO 15 → ~3.9M on AnTuTu

Extra Performance Chip

• OnePlus: Wi-Fi G2 chip (improves Wi-Fi stability)

• iQOO: Super Computing Q3 chip (boosts graphics, enables ray tracing)

iQOO clearly focuses on gamers and performance enthusiasts.

🎥 Camera Comparison: OnePlus 15 Is the Clear Winner

If you love photography, videography, vlogging, or natural-looking images, OnePlus pulls ahead.

Video Recording

• Winner: OnePlus 15

  • Dolby Vision HDR

  • Stable 4K 60 fps with stabilization

• iQOO drops to 1080p with stabilization

Photography

• OnePlus → Natural, balanced, eye-pleasing

• iQOO → Over-processed, over-sharpened at times

Selfie Camera

• OnePlus: Face Autofocus + better skin tones

• iQOO: No autofocus

Telephoto vs. Periscope

• OnePlus: Better colors and consistent processing

• iQOO: Better detail only in bright daylight

If camera quality matters, OnePlus 15 wins by a solid margin.

🔋 Battery & Charging: OnePlus Wins Big

This round isn’t even close.

Battery Life

• OnePlus 15 → 12–13 hours SOT

• iQOO 15 → 8–9 hours SOT

Charging Speed

• OnePlus → 120W (full charge ~40 mins)

• iQOO → 100W (full charge ~55 mins)

Wireless Charging

• OnePlus → 50W

• iQOO → 40W

Charger Type

• OnePlus: Type-A to C

• iQOO: PD-compatible Type-C to C (can charge laptops!)

OnePlus simply lasts longer and charges faster—the perfect everyday flagship.

✨ Display & Design: Sharper Screen vs. Better Experience

Display Resolution

• OnePlus 15: 1.5K

• iQOO 15: Quad HD+ (sharper)

Brightness

• OnePlus: Bright

• iQOO: Brighter, especially for HDR content

Speakers

• OnePlus → Richer, clearer sound

• iQOO → Good, but not as refined

Haptics

• OnePlus → Good

• iQOO → Exceptional (Dual-axis motor)

Signature Feature

• OnePlus → Alert Slider

• iQOO → Camera light rings

OnePlus is more premium-feeling, but iQOO gives you a visually sharper screen.

🧠 Software & Updates: Clean vs. Feature-Rich

Software Experience

• OnePlus OxygenOS 16

  • Clean

  • No bloat

  • Smooth animations

  • Better out-of-the-box feel

• iQOO OriginOS 6

  • Feature-rich

  • But includes bloatware and app suggestions

Updates

• OnePlus → 4 years major + 6 years security

• iQOO → 5 years major + 7 years security

Exclusive AI Features

• OnePlus → Mind Space AI (super helpful for note-taking & summarization)

• iQOO → No equivalent premium AI features

🛠️ Build, Design & Extras

Back Material

• OnePlus (Sand Storm edition): Fiber/plastic

• Other colors: Glass

• iQOO 15: Always glass

Water Resistance

• Both: IP69

• OnePlus: Also IP69K (rare, withstands hot water pressure up to 80°C)

Connectivity

• OnePlus → 16 5G bands

• iQOO → 13 5G bands

Sensors

• OnePlus → 46

• iQOO → 53
  (Both have ultrasonic fingerprint sensors.)

Screen Protection

iQOO includes:

• Anti-reflective screen protector

• 4 free replacements per year

🏁 Final Verdict: Which One Should You Buy?

After comparing everything—performance, camera, design, display, battery, thermals, and software—here’s the simple answer:

✔ Buy iQOO 15 if you want:

• Best performance

• Cooler gaming temperatures

• Higher benchmark scores

• Better haptics

• Sharper 1440p display

• Longer software support

• A PD charger for laptop charging

This is the performance king.

✔ Buy OnePlus 15 if you want:

• Best all-round experience

• Better cameras & video quality

• Longer battery backup

• Much faster charging

• Clean OxygenOS with minimal bloat

• Alert slider

• Better speakers

• Faster wireless charging

This is the all-round flagship king.

⭐ Final Words

Both phones are excellent, but they serve different audiences.

• If you’re a gamer or power user, the iQOO 15 is unbeatable.

• If you want a balanced flagship that excels in charging, camera, and clean software → OnePlus 15 is the better choice.

No matter which one you pick, you’re getting one of the best flagship killer smartphones of the year.