It seems that both Huawei Mate 30 and 30 Pro will have improved autonomy. Not so much for the chipset, since the Kirin 990 will have a production process unchanged, as for the battery. The images appeared on the web show a higher capacity for both models, passing to 4200 and 4500mAh respectively.
A considerable leap forward, given that the current models, namely Mate 20 and Mate 20 Pro, stand at 4000 and 4200mAh. And given that the resolution of the panels should not vary, remaining in Full HD+ and Quad HD+, this should benefit the already good autonomy that the two devices should have. we can expect a minimum of 6 hours of heavy use.
It is worth to mention that the upcoming flagship Mate 30 series will definitely have many upgrades. According to recent reports, Huawei Mate 30 series will support 4K 60fps video recording. This will better meet the consumer demand for a flagship camera. However, Huawei is at least a year late on this one. The iPhone 8 Plus and iPhone X came with this feature in the fall of 2017. In the spring of 2018, Samsung Galaxy S9 with Snapdragon 845 also used this feature. Nevertheless, it will definitely give the Mate 30 series a better camera than its predecessor.
According to speculations, the Huawei Mate 30 Pro will come with a 6.7-inch display and the curvature on both sides reaches 88°. Furthermore, the size of the notch is larger than that of the P30 Pro, mainly because it integrates more Face ID sensors. Huawei Mate 30 Pro is expected to be equipped with dual 40MP main shots, CMOS size of 1/1.55 inches. This will be supported by a 12MP ultra-wide-angle lens and an 8MP 5x optical zoom lens.