Does H10 measure heart rate when swimming?
Yes, H10 is an excellent choice for swimming. With the new Pro chest strap, it stays on better during swimming.
You can take just the sensor and start the training session with the Polar Beat app, and go for the swim.
Or if you can use a GymLink-compatible wrist unit during the swim. You can set the GymLink option on from the Beat HR sensor settings. Bluetooth doesn’t transmit data in the water.