Versa 2 calorie burning between different exercises isn't right

[James_Lockhart]

Today I did a HIIT boxing session on heavy bag, followed immediately by a 2.3km run. My average HR was at 177 and sat at 185 (97% max) for the last 3 minutes. This run burned 155 calories.

I went on a short 600m walk with my kids over 22mins and spent around 5-8 mins at the park stationary. Max HR was 115 carrying a kid up a hill, with the average 101. This very slow walk burned 142 calories - I entered 'fat burning' for maybe 30 seconds.

This doesn't seem accurate to me. This isn't about my individual fitness and status, rather how it records a burned calorie based on the specific exercise differentiates calories burned between varying exercises.

How accurate are the calories burned based on HR?

[JohnnyRow]

What are the recorded time lengths of the 2 workouts in the workout logs, which is where I assume are getting calorie counts.

[James_Lockhart]

The run was 10m 13s and the walk was 22m, although a third of that was stationary pushing my kid on a swing.

[JohnnyRow]

So roughly twice as many calories burned per minute on the run.

[James_Lockhart]

6 cal/min walking vs 13 cal/min running, however 86% of the walk was in 'Below zones', whereas 95% of the run was at 'Peak', with 78% of the run at 97% max HR.

These other calorie calculators suggest the run should have burned 160 (relatively close), but the walk should have only burned around 50 calories.

https://keisan.casio.com/exec/system/1350959101

[JohnnyRow · Accepted solution]

You might be right, but it sounds to me like you've got a lot of variables on the "walk".  Are you just looking up the calculation for a very slow 600 m walk?  If that is what you look-up was for, I suggest doing that: a very slow 600 m walk, alone, not pushing swing, not carrying kid uphill, etc, to at least make sure you are comparing comparable activities.

[James_Lockhart]

Yeah that's true. It just didn't feel accurate - the post HIIT run killed me vs a walk with a 3y/o who stops every 30m. I would have been pushing the swing with my watch hand though, so perhaps it recorded extra steps and added those in to the mix.

Thanks for your assistance!