The Huawei mate30 has better battery durability than the p40.
1. Battery capacity difference: The battery capacity of Huawei mate30 will be larger than that of Huawei P40. The battery capacity of the Huawei P40 is 3,800 mah, while the battery capacity of the Huawei mate30 is 4,200 mah.
2. Charging speed difference: the charging speed of Huawei mate30 will be faster than that of Huawei P40. The Huawei mate30 phone supports 40 watts of wired fast charge, while the Huawei P40 phone only supports 22.5 watts of wired fast charge.