If you go on Galaxy Wearables app (I find it easier to see all the options on my phone), on bottom, tap "Watch Faces". There are a number of categories of styles - Classic, Minimalist, Trendy, Health, Informative, etc. and several watch face options to choose from within each category. I found Fitness Centric within the Informative category. Just choose that and hopefully it will have the Calories burned icon at the top center of the watch face. Note that within the app on my phone it still shows Step Count icon NOT Calories, but when loaded to Watch Active2, it does show Calories burned icon. And it is only an icon with the total caloric number - if you tap it, it will say "no details available". The Activity Heart widget does give calories burned, but only from recognized activities (walking, workout, etc.). Explore and play around with the watch faces, you might find something else. I hope this works for you.
