Oppo Find X9 Ultra outperforms iPhone 17 Pro Max on battery and charging

9 articles · Updated · VietNamNet · May 8

In identical three-hour YouTube playback tests, Oppo retained 94% battery versus Apple's 90%, and reached 74% charge in 30 minutes against 64%.
The Find X9 Ultra pairs a 7,050mAh silicon-carbon battery with 100W charging, while the iPhone 17 Pro Max is reported to have roughly 4,823-5,088mAh capacity and 40W charging.
The results highlight Chinese brands' lead in silicon-carbon batteries, which can deliver 25-35% more capacity than lithium-ion cells still used by Apple and Samsung.

Are Chinese phones sacrificing long-term battery health for impressive charging speeds?

Will Apple and Samsung skip silicon-carbon tech and wait for solid-state batteries?

Is the battery battle won with bigger hardware or smarter, more efficient software?