Good question! Truth is, the watch market has become saturated with high-quality hardware from a wide range of manufacturers – but the swimming experience with these devices is severely lacking…
First, they lack accuracy in tracking the foundational parts of a swimming routine, such as workout times, distance, or workout breakdown. (And chances are, they will completely ignore core stroke metrics such as rate, distance per stroke, and stroke efficiency).
Secondly, most apps track general metrics – they do not go into the multi-layered nature of swimming (and nor are they designed by people who love the sport as much as we do!)
Most importantly, they do little to provide you, the swimmer or coach, with any kind of actionable insight to build and improve upon.