Google Pixel 9 Pro Fold vs Vivo X300 Ultra

Google Pixel 9 Pro Fold

Tensor G4 with 16GB RAM (12GB for the system, 4GB reserved for AI) handles everyday foldable multitasking, but it's the consensus weak point — well behind Snapdragon and Apple silicon in raw benchmarks, and it runs warm.

• Tensor G4 with 16GB RAM; Google claims a 20% web-browsing and 17% app-launch improvement over the first Fold.
• Of the 16GB, only 12GB is used for phone performance and UI — the other 4GB is reserved purely for on-device AI.
• Tensor is a recurring criticism — 'Pixel phones use a Tensor chip which is known to underperform compared to Snapdragon'.
• Geekbench gap is stark — Pixel 9 Pro silicon lands around 1950 single / 4650 multi versus iPhone's >3000 / >9000.
• Notebookcheck's summary verdict is blunt: the Pixel 9 Pro Fold is 'still lagging behind' the best foldable hardware.

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.

Google Pixel 9 Pro Fold

Despite a smaller 4,650mAh cell than the original Fold and Pixel 9 Pro XL, real-world endurance beats both. Charging is the weak spot: 21W wired max, no charger in box, and compromised wireless charging.

• Long-lasting battery is a headline strength — Google's battery performance helps offset minor software shortfalls.
• Despite a smaller 4,650mAh battery than the original Fold and Pixel 9 Pro XL, the Fold beat both — 6+ hours of screen time in a heavy day with 25% left at 8pm.
• GSMArena measured an 11:54h Active Use Score — above the Galaxy Z Fold 6 and Honor Magic V3, below the vivo X Fold3 Pro.
• No charger in the box; 21W max over Power Delivery 3.0 — slow for a near-$1,800 device, though common chargers work.
• Wireless charging is compromised in two ways — slow speeds and an awkward charge-coil placement that frustrates on such an expensive device.
• It still runs on the warm side, as many foldables do, occasionally warmer than preferred — but a drastic improvement over the first Pixel Fold.

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.