So, I'll add a review: after sending a broken camera back to a Chinese maker, I received a replacement camera 1.5 months later. As a primer: I was able to put in four days of work before my first swim in the pool. Don't assume it will keep water out. I would like to request that the water resistant claims made for the Insta360 One X2 model be removed from the packaging and advertising materials. The seller inquired as to the potential of a manufacture problem in the tightness of the chamber and was told that there was. However, the service center came to the following conclusion: The SC engineer examined the camera and ran a test of its moisture protection feature, which it passed. The SC engineer opened the chamber and found oxidation and corrosion on the chamber's central board as well as oxidation in the battery compartment, indicating the presence of liquid infiltration into the equipment. Liquid getting inside the equipment due to improper use and disregard for safety measures is not covered by the warranty and is the root cause of the problem. When the battery cover is not latched shut, the camera will not switch on, which begs the question, "How can you not follow the rules of operation?"