Users are confused about sleep tracking metrics, particularly regarding how zone minutes are calculated and why they are not reflected accurately in heart rate zones. They seek clearer data and explanations.
Hey all, I am a little confused about the zone minutes I earned today, and wondering if I understand it correctly. I'm recovering from an operation I had 2 weeks ago and am finally allowed to resume light/low impact activities. I went for a swim today and my Fitbit recorded 24 zone minutes, but when I looked at the Zone Minutes break down it says I spent 0 minutes in the heart rate zone, and I also have a cardio load of 0. If my heart didn't enter the heart rate zones, how did I earn any minutes at all? Also, how could I have not had any cardio when I was swimming? I know I was going pretty gentle compared with my normal activity levels but I am genuinely confused how I couldn't have earned even 1-5 cardio load from a 30 minute swim. Could someone who understands all of this help me understand? 😅