1. Huawei Mate 20Pro supports IP68, that is, it can prevent dust and continuous immersion in water with a depth of more than 1 meter;
2, the first X of IPXX represents the dustproof level, which is divided into 7 levels of 0-6; The second refers to the waterproof level, the unified standard of international industrial waterproof grade standard IPX and Japanese industrial waterproof standard JIS grade customization, which is divided into nine grades of 0-8;
3, however, it should be noted that being able to achieve the dustproof and waterproof rating of IP68 does not mean that the mobile phone device can be fully waterproof, and after a period of use due to the aging of parts, waterproof isolation and other gradual failure, waterproof performance will gradually deteriorate;