OnePlus 11 vs OnePlus 15

OnePlus 11

Snapdragon 8 Gen 2 + up to 16GB RAM + UFS 4.0 — flagship-grade performance matching the S23 family. OxygenOS 13 on Android 13 (now more 'ColorOS-like' after Oppo merger).

• Snapdragon 8 Gen 2 + 8/16GB RAM + 128/256GB UFS 4.0 — flagship performance, matches Galaxy S23 family on benchmarks.
• OxygenOS 13 on Android 13 — increasingly 'ColorOS-like' since Oppo merger, divisive among long-time OnePlus fans.
• 4 OS updates + 5 years of security — short vs Pixel 8's 7 years; ages through Android 17 / security 2028.
• Cooler sustained performance than S23 Ultra — OnePlus's vapor chamber + 8 Gen 2 throttling tune is best-in-class for gaming.

OnePlus 15

Snapdragon 8 Elite Gen 5 with up to 24GB RAM and a custom tri-chip setup — it tops benchmark charts, beats the iPhone's A19 in multi-core and runs games at up to 165fps. The asterisk is sustained thermals: day-to-day it stays cool, but extended stress benchmarks repeatedly overheat and shut down.

• Across a benchmark suite the OnePlus 15 performed 19–22% better than the OnePlus 13 and 14–19% better than the S25 Edge, and outperformed the OnePlus 13 by 10% in the stress test.
• Geekbench shows the Snapdragon 8 Elite Gen 5 easily beating the A19 with a multi-core score over 11,000; in Genshin Impact it averaged 119fps vs the iPhone 17's 107fps over 30 minutes, running cooler at under 36°C.
• BGMI runs native 120fps (165fps with frame interpolation) at under 35°C and under 4W power draw, making it one of the best phones for gaming with its 165Hz panel and bypass charging.
• In a 15-minute 20-thread CPU throttle test it throttled to 82% of max performance at a controlled 34–35°C with only 3% battery drain.
• It flashed an overheating warning after barely 8 minutes of a peak-load benchmark, shutting it down and disabling the flashlight and hotspot — though in day-to-day use it runs smoothly with only moderate warmth.

OnePlus 11

5,000mAh battery + class-leading 80W SuperVOOC charging — full in ~25 minutes, dramatically faster than any 2023 rival. The trade-off: NO wireless charging, a regression from the OnePlus 10 Pro's 50W wireless.

• 5,000mAh battery + 8 Gen 2 efficiency delivers reliable all-day endurance — ~6-7 hours of SOT typical.
• 80W SuperVOOC wired charging — full in ~25 minutes (0-50% in ~10 min), dramatically faster than the S23+/Ultra's 45W (~1h) or iPhone 15 Pro Max's 20W (~1h45m).
• NO wireless charging — major regression from the OnePlus 10 Pro that had 50W wireless. Biggest deal-breaker for many reviewers.
• Multi-phone drain test: OnePlus 11 placed 4th of 7 at 9h46m total runtime — beaten by iPhone 15 Pro Max, Vivo X100 Pro and just edged by S24 Ultra.

OnePlus 15

The single biggest reason to buy this phone. A 7,300mAh silicon-carbon cell delivers the best smartphone battery life ever measured — a record ~25-hour drain test and 2–2.5 days of real use — with 120W wired charging refilling it in ~40–51 minutes plus 50W wireless.

• The OnePlus 15 lasted an insane 25 hours 13 minutes in the drain test — officially the best phone for battery life, beating the iPhone 17 Pro Max's 17h54m and lasting over 10 hours longer than the Galaxy S25 Ultra.
• The OnePlus 15 just delivered the best battery life we've ever measured — a very, very good phone and a strong value pick for late 2025.
• In real use it averaged 2 days 11 hours on a full charge, and 7–8 hours of screen-on time is effortless thanks to the 7,300mAh cell and aggressive standby management.
• 120W SuperVOOC charged 1→50% in 22 minutes, 75% in 36 minutes and a full 1→100% in 51 minutes; other tests hit a full charge in roughly 40–43 minutes.
• It also keeps 50W AirVOOC wireless charging — about 30% in 30 minutes and ~85% in 92 minutes, with the device staying cool around 34–35°C.
• The battery is so large you could cap charging at 85% to preserve long-term health and still have more capacity than a Galaxy S25 Ultra at 100%.