Sunto Spartan Sport HR

[seanbissett]

Hi all, I am looking for some advice. I have recently just got the above watch and have changed over from a Garmin Vivoactive3. I did the exact same walk today, same pace but it took me 3 mins longer with the Suunto this evening than I did it this morning with the Garmin. My Garmin has calories for a 56 min walk at an average pace of 6.5km at 477 calories, the Suunto has the similar walk at 1227 calories. Are the Suunto measurements are calculations way off? I have always found the Garmin to be relatively accurate. Any help please, I have 14 days to return if this is faulty or something else. Please advise, thanks.

[sartoric]

You can’t do that kind of comparison (maybe apart from calories) for different activities.
It never happen that measurements are exactly the same, there are too many variables

and anyway, time is time … usually if it took 3 minutes more it means it was 3 minutes longer

If you don’t feel confortable with the watch, return it.

[seanbissett]

@sartoric surely you’d expect them to be much closer? My body doesn’t burn different calories depending which make of watch I have on my wrist.

[isazi]

@seanbissett first difference is that one includes metabolic calories, and the other one doesn’t.

[seanbissett]

@isazi so do you think this is normal? The problem I have is that I’m counting calories on Myfitnesspal (which connects via Mapmyrun) and this is obviously creating a huge difference to my calorie expenditure each day.

[cosme.costa]

Regarding the total time, this extra 3 min is with the data shown in the watch or using Strava, could be some autopauses or something like that. What you can do is wear the two watches in the same walk and then you will see where the difference is, if any.

Regarding calories burned, as @isazi comments Suunto includes metabolic calories, so it should be a bigger number but what it is important here is the the watch has your real values of weight, height, age and heart rate to do this calculations. Did you check if your heart was within your normal values during the walk?

[isazi]

@seanbissett I cannot know which number is correct and which is not, but you can compare the total calories in Garmin and Suunto at the end of the day, because they should match more (having both metabolic + activities).

[seanbissett]

@cosmecosta Thanks for the reply. So I took both watches out today, the Garmin was in my pocket at 488, the Suunto initially had 1200 but then readjusted itself down to 900calories lost. Using an online BMR calculator, this sounds about right?