Motorola Razr Fold vs Vivo X300 Ultra

Motorola Razr Fold

Snapdragon 8 Gen 5 with 16GB RAM — fast for everyday use and surprisingly good in long sessions, but the choice of the non-Elite chip in a $1,899 phone is the headline criticism.

• Motorola stuck Qualcomm's excellent Snapdragon 8 Gen 5 (16GB RAM, 512GB) inside its first full-fold flagship.
• With a phone this expensive it is a bit disappointing Motorola couldn't go all the way with the Elite chip.
• In a 20-minute stress test the Z Fold 7's 8 Elite was ~10% better on the first loop, but the Razr Fold ran better through the 20 minutes and ended ~20% ahead on sustained performance with similar thermals.
• Recording 4K120 for a long time makes the Snapdragon CPU run quite hot, though it cools down fairly fast.
• The non-Elite chip, 243g weight and IP49 dust rating could be causes for concern, even if the experience is smooth.

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.

Motorola Razr Fold

The standout: the largest battery in the book-foldable space delivering class-leading endurance, plus 80W wired charging — three times faster than the Galaxy Z Fold 7.

• Lasting an impressive 14 hours 31 minutes, the Razr Fold is officially the best notebook-style foldable for battery life (16h10m with refresh-rate optimized).
• The Galaxy Z Fold 7 managed only 10h44m in the same test, with a 4,400mAh battery versus the Razr Fold's 6,000mAh cell.
• I found the battery basically impossible to kill in a single day, even with the Fold's hotspot supplying an entire office internet connection over 12 days.
• It charges at 80W wired — over three times as fast as the Galaxy Z Fold 7's 25W — plus 50W wireless and 5W reverse, with a 90W charger and a case included in the box.
• The 6,000mAh cell is colossal — about 20% larger than the Pixel 10 Pro Fold's — though there's also more display to power.
• If you use the camera a lot or run games, the battery does drain quite quickly and you may need an afternoon top-up.

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.