iQOO 15 vs OnePlus 15 vs Realme GT 8 Pro: Ultimate 2025 Comparison

iQOO 15 vs OnePlus 15 vs Realme GT 8 Pro: Ultimate 2025 Comparison

The premium smartphone battle in India has become more intense with the arrival of the iQOO 15, joining the already popular OnePlus 15 and Realme GT 8 Pro. All three flagships run on the Qualcomm Snapdragon 8 Elite Gen 5 chipset, making this a true like-to-like comparison for power users. Interestingly, all three phones start at the same base price in India, making the buying decision even more challenging for users.

This detailed comparison of iQOO 15 vs OnePlus 15 vs Realme GT 8 Pro breaks down the performance, camera capabilities, software experience, battery life, display quality and overall value to help you choose the right flagship for your needs.

Design & Software Experience

The iQOO 15 debuts the new OriginOS 6 in India, offering a simple and fast UI with improved cross-platform connectivity. The interface continues to prioritise gaming optimizations and smooth animations.

The OnePlus 15 runs OxygenOS 16, long known for its clean, minimal and fast user experience. If you prefer a clutter-free interface, OxygenOS continues to be one of the best Android skins.

Meanwhile, Realme GT 8 Pro introduces Realme UI 7.0, which focuses on AI-driven tasks, automation tools, smart features and enhanced customisation. It feels more feature-rich than OxygenOS and more creative than OriginOS.

Performance & Hardware

All three devices use the Snapdragon 8 Elite Gen 5, Qualcomm’s most advanced flagship processor to date. With improved thermal efficiency, AI capabilities, and GPU power, performance remains consistently top-tier in all three phones. iQOO 15 vs OnePlus 15 vs Realme GT 8 Pro

Whether you’re gaming, multitasking, or running heavy apps, the difference in real-world performance between these three devices is minimal. iQOO 15 vs OnePlus 15 vs Realme GT 8 Pro However, iQOO continues to focus heavily on gaming enhancements, while OnePlus is known for sustained performance over long sessions.

Performance Comparison

Camera Comparison

This year’s flagship focus is clearly on camera performance.

• iQOO 15 uses a balanced triple rear setup, comparable to OnePlus 15.

• OnePlus 15 has a refined optical setup with good low-light optimization.

• Realme GT 8 Pro, however, steals the spotlight with a 200MP telephoto camera, the highest in the segment.

All three phones share a similar front camera configuration.

Camera Comparison

Battery & Charging

Battery capacity in 2025 flagship phones has crossed 7000mAh, and these three phones continue that trend.

• iQOO 15 offers a 7300 mAh battery with fast 120W charging.

• Realme GT 8 Pro also offers up to 7300 mAh, matching iQOO.

• OnePlus 15 keeps the same capacity range with strong battery management.

Charging speeds remain extremely fast on all three, with 100–120W support.

Battery, Display & Charging

Display Quality

Display is where the differences are more visible:

• Realme GT 8 Pro leads with 7000 nits peak brightness, making it the brightest phone of the three.

• iQOO 15 follows with 6000 nits.

• OnePlus 15, despite offering only 1800 nits, compensates with a superior 165Hz refresh rate, ideal for smooth scrolling and gaming.

Which One Should You Choose?

Choose iQOO 15 if you want:

• Best gaming-optimized UI

• High brightness display

• Balanced triple camera system

• New OriginOS 6 experience

Choose OnePlus 15 if you want:

• The cleanest and smoothest UI

• Best refresh rate at 165Hz

• Reliable and consistent performance

Choose Realme GT 8 Pro if you want:

• Highest display brightness (7000 nits)

• A powerful 200MP telephoto camera

• AI-rich Realme UI 7.0 features

Final Verdict

The battle of iQOO 15 vs OnePlus 15 vs Realme GT 8 Pro is extremely close, but each phone targets a different type of user. Gamers will love iQOO, clean UI lovers will prefer OnePlus, and camera enthusiasts should go for the Realme GT 8 Pro. iQOO 15 vs OnePlus 15 vs Realme GT 8 Pro

Realme GT 8 Pro.