I've got into open water swimming so decided to upgrade my watch from a forerunner 30 to the 735xt to get better distance accuracy....
I used my 735xt for the first time tonight and I did 2x750m loop and 1x450m loop. My watch said I did 43yards.
I only swim breaststroke. I've read that the watch does know the 4 main types of stroke, of which one is breaststroke so I don't understand why it doesn't pick up my distance??