
Samsung Galaxy Watch Active 2
40 mm
Samsung Galaxy Watch Active 2
40 mm
The watch for 300 CHF is a variant from Germany. I personally don't know what that means exactly. See under important notes: "Samsung Watch DE version: Samsung Pay is not supported for this model in Switzerland."
With different colour variants, it can happen that some are more expensive than others because of the different demand/supply.
A chest strap is not necessary because the Watch has its own, very well functioning heart rate measurement on the underside of the watch.