Battery Life Remains the Same
Speaking of battery life, the M4 iPad Pro amazingly maintains the same 10-hour battery life despite its “impossible” thinness.
Some of that is undoubtedly helped by the M4 chip and its increased power efficiency — it’s said to use half the power of the M2 at the same performance levels — and the OLED panel likely helps, too.
However, Apple has also slightly increased battery capacity in the 11-inch model, which offers a 31.29-watt-hour cell versus 28.65Wh in the prior model. On the other hand, the 13-inch model sees the battery shrink to 38.99Wh, down slightly from 40.88Wh on the 12.9-inch iPad Pro.
Those are pretty subtle changes, and both the new models still offer up to 10 hours of surfing the web or watching video when on Wi-Fi, or 9 hours when using cellular data.