What is the difference between pool swim and open water swim?
The goggles have two main modes: pool and open water.
Pool swimming is for swimming lengths of a set distance. You can set your pool size (including custom or unknown) and the goggles will count your lengths and distance, among other metrics.
Open water mode is used when there is no set lane for swimming back and forth a consistent distance. In this mode, you have the option to use the goggles on their own or to connect them to a compatible smartwatch.