I have been noticing recently that there is about a 200m distance in my swim distance that shows on my watch when I finish my swim and what is uploaded to my app on my iPhone. This is quite frustrating as I usually swim to reach a certain length. For example. yesterday my watch reported that I had swum 2550m at the end of my swim but only 2369m once the activity had been uploaded to my phone. A similar situation occured today on my ocen swim as well.
Please advise.
Bev