I don’t know what your exact criteria for “sportswatch” is, but I’ve been very happy with my Bangle.js 2: https://banglejs.com/
I don’t know what your exact criteria for “sportswatch” is, but I’ve been very happy with my Bangle.js 2: https://banglejs.com/
These days I think OMEMO is a better choice than OTR, if your client supports it.