Sadly, no. I‘ve been swimming with my Apple watch and also doing some cardio sessions in the pool. The HR Sensors don‘t work underwater. It will track the laps in the pool: With every pool workout you can set the length of each pool lane. For HR-Tracking you need an external HR-Tracker with Bluetooth functionality. I personally am using the Polar Connect A7
No, because I don‘t need to buy the newest Tech every year. And IF there is a new system, but I don‘t like it…. Why do I need to upgrade? Or probably with how slow Technology is evolving nowadays it be more of a sidegrade than an upgrade