Is the IP68 waterproof of the POCO F7 Ultra permanent?

The POCO F7 Ultra supports dustproof level 6 and waterproof level 8, and has passed relevant inspections.
IP68 protection capability will gradually decrease due to wear, bumps, high temperature and humidity, acidic and alkaline liquid environment, etc., during use. It is not permanent. It is recommended that you use it under reasonable conditions. Harsh application environment will cause the dust and water resistance of the phone to decrease rapidly. Do not charge the phone in a wet state. Please note that damage caused by immersion in liquid is not covered by the warranty.