OnePlus 11 vs Vivo X300 Ultra

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.

Vivo X300 Ultra

Snapdragon 8 Elite Gen 5 plus Vivo's custom imaging silicon delivers flagship benchmark numbers and strong gaming, but the camera-heavy hardware runs hot — sustained stress tests show roughly 60–65% stability and the camera app warms it up fast.

• At the heart is Qualcomm's current flagship Snapdragon 8 Elite Gen 5, supplemented by Vivo's custom VS1 and V3-Plus imaging chips.
• It boots in 16 seconds (vs 21s for the S26 Ultra and 19s for the iPhone 17 Pro Max) and posts an AnTuTu score over 3,800,000, stronger than Samsung.
• In a prolonged stress test it throttled CPU performance to about 60% of peak — in line with other high-powered flagships — and 3DMark stability landed around 63–66%.
• It gets a bit hot after 30–40 minutes of gaming, but with no throttling even past an hour and never uncomfortable to hold; boost mode at max graphics gives around 4 hours of Wuthering Waves on a full charge.
• Native 120fps gaming with smooth/very-high graphics in many titles, with temperature barely crossing 35°C and power draw around 4W in battle-royale modes.
• Under sustained camera/imaging load the front reached ~46.8°C and the back ~45.2°C, and around 47°C the refresh rate drops slightly though not all the way to 60Hz.

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.

Vivo X300 Ultra

Vivo grew the silicon-carbon cell 10% to 6,600mAh while keeping the body the same size. Real-world endurance is strong — ~16h active-use score, ~7h heavy screen-on, 13–14 hour days with charge to spare — and 100W wired refills it in under an hour, with 40W wireless.

• Vivo increased the battery by 10% to 6,600mAh despite the phone being practically the same size on paper.
• In our battery test it earned an active-use score of almost 16 hours; 100W charging took it 0–66% in 30 minutes and a full charge in 46 minutes, plus 40W wireless. A charger is in the box except in Europe.
• On the China version I'm finishing entire 13–14 hour days with 25–30% left; the global version keeps the 6,600mAh cell so battery life should comfortably last 12–13 hours of heavy use.
• Getting nearly 7 hours of screen-on time with very heavy usage from the 6,600mAh silicon-carbon unit, with 100W wired and 40W wireless charging support.
• After a 4-hour heavy-usage simulation the phone still had ~45% battery left, which is solid by today's standards, and 100W wired charging takes about 45 minutes to full.
• In a head-to-head charge race against the Oppo Find X9 Ultra (80W), the Vivo on 100W finished first at 50 minutes 20 seconds to the Oppo's 52:39.

OnePlus 11

$699 starting (8/128GB) was a $100 reduction vs OnePlus 10 Pro's launch — aggressive flagship pricing that undercut Samsung/Apple by $200-500. Now $400-550 used in 2026 — outstanding value if you can live without wireless charging.

• Launched at $699 (8/128GB) / $799 (16/256GB) — aggressive flagship pricing that undercut S23 ($799) and S23+ ($999) on value.
• At $400-550 used in 2026 with 1+ year of OS updates left — exceptional value for an SD 8 Gen 2 phone with 80W charging.
• vs S23 Ultra ($1,199): OnePlus wins on charging speed + price; Samsung wins on cameras + S Pen + periscope + IP68 + longer updates.
• vs Pixel 8 ($699): OnePlus wins on charging + display brightness + raw performance; Pixel wins on camera AI + 7-year updates + IP68.
• Engadget verdict: 'best-value flagship of 2023' — biggest 80W charging differentiator at the lowest price among true flagships.

Vivo X300 Ultra

This is a deliberately niche, camera-first flagship: roughly €1,175 in China for 512GB, around £1,399 globally for the phone, and close to €2,600 for the full kit. For the people it's aimed at it draws some of the strongest praise of any 2026 phone; for everyone else, a cheaper X300 Pro or the Oppo Find X9 Ultra may make more sense.

• Last year's X200 Ultra was, in my opinion, one of the best smartphones of 2025 — and this is the best smartphone I've ever used, with the best camera application I've ever used, provided with zero script from Vivo.
• The cameras are nothing short of amazing — this is the best Android camera phone, with image quality better than anything from Samsung.
• The versatility here is just ridiculous — more like a phone in a camera than the other way around, a camera system built from the sum of its many parts.
• If you accept the 35mm main, are willing to tolerate AI processing in some scenes, and don't mind the front-camera stabilisation limits, this Vivo is an excellent choice.