I had last summer a speed/cadence sensors working pretty well with my vivoactive 3, the trips accuracy were acceptable if not just decent.
Got now myself a second wheelset (instead of a new bike ;)), one will have a 35 mm tyre for gravel and one set 25 mm tyre for road. Setting up now as I am writing - the gears and disk brakes for quick swap.
Also looking for one more speedsensor so each wheelset will have one on each own so I can predefine the tires OD for calculating riding distances (I would prefer this way instead a GPS to calculate the distances).
Not sure yet how the vivoactive 3 will handle two speedsensors (with two wheel size) plus the cadence sensor calculation would be my goal. Maybe I will have to call up as a two bike profiles?
Anybody have experience with a setup I am trying to make?
Eventually the garmin EDGE 130 is on my list, but if not necessary I would like to recover my budget first after buying these wheelsets...