Is Amazfit Cor waterproof?

Amazfit Cor has a water resistance rating of 5ATM under ISO standard 22810:2010. It has passed the TUV test   issued by the third party inspection agency. Certificate Number: 50100458004. This means that Amazfit Cor may be used for shallow-water activities like swimming in a pool or ocean. In addition of that, you can shower or have a hot bath with it on.