Does anyone know what metrics it records for swimming?
Pace
Stroke
Stroke Count
etc...
Thanks.
The manual is a good source of information - http://static.garmin.com/pumac/vivosmart_4_OM_EN.pdf
This is a basic device so don’t expect too much in the way of features. No indication that it will auto detect stroke. HR in swim mode is not available on any Garmin device unless it is capable of pairing with an HRM-Tri or HRM-Swim.