I’ve just got a Vivosmart 3. Today I walked around the house and did some pedalling on my circuit trainer. The watch and app (when synced) showed some walking distance recorded. Then I did a 3.7 mile walk. My Vivosmart says I have done 4.4 miles today, and so does the steps section in the app. But the walking section only shows 0.26 miles walked. Why is this?