Which watch do you have? I have a good selection of watch faces that can be customized with complications for fitness. There are quite a few pre-set fitness oriented faces. I don't know what kind or how wide of a selection you expected, but if you don't find one to your liking, you can always download some from the Play store or the Galaxy store. Whether or not they would be free is another story. Just because a watch face is not specifically "fitness oriented" does not mean you can't customize it to be by adding the appropriate complications.
Also, you posted to the wrong category - this should be moved to Galaxy Watch.
