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tl01

macrumors 68020
Original poster
Jun 20, 2010
2,350
649
My kids and I are at Disneyland today and my 12 year old is wearing my series 3...it is set up for his height and weight. I am wearing my series 4. We have been walking together all day. My watch says I have burned 250 calories more. Is that because my heart beats more quickly than his? I do feel the series 4 is more generous in getting me to my move goal but this seems to be a huge difference!
 
Yes. The more overweight you are, and the higher your HR, the more calories you burn.
I have a very healthy heart rate...in the 50s when sleeping and am only about 10 percent overweight. I evecise 5 days a week and do HIIT. I don’t think it is about unhealthy vs healthy body. Lol.
 
I never said healthy or no.

The calories burnt is a calculation performed with the various info: HR, height + weight (hence, BMI), age.

All else being equal, someone who has a 'fatter' BMI will earn more calories burnt in the watch, and in real life - this is fact.
 
I never said healthy or no.

The calories burnt is a calculation performed with the various info: HR, height + weight (hence, BMI), age.

All else being equal, someone who has a 'fatter' BMI will earn more calories burnt in the watch, and in real life - this is fact.

Yep, you are bigger I assume, etc, Not complicated.
 
My walking heart rate average is 12 beats per minute slower than his.

I am over 1000 calories for the day and he is almost at 500. Makes no sense. We walked 10 miles.
 
You then have to do a 20 min walk without your phone to set it up.

We have both done the walk where the watch learns your stride. My series 4 counts calories way quicker than my other watch even when I just exercise on my HIIT trainer at home which doesn’t involve forward motion. I’m going to reset them both in the morning and start fresh.
 
How much bigger than your 12 year old son are you?

Maybe try plugging your info into online calorie calculators and see what the expected difference is.
 
It also depends on what wrist you wear the watch on. I am right handed and many times I will wear my watch on my right wrist and it will count up to 300-400 more calories then if I wear it on the left.
 
It also depends on what wrist you wear the watch on. I am right handed and many times I will wear my watch on my right wrist and it will count up to 300-400 more calories then if I wear it on the left.

Crazy! I am wearing my wrist on the same hand I always wear it on though. It is on the same spot on my wrist too...as my tan line is petty bad from wearing my watches since the series 0 was released.
 
Crazy! I am wearing my wrist on the same hand I always wear it on though. It is on the same spot on my wrist too...as my tan line is petty bad from wearing my watches since the series 0 was released.
I forgot to mention that I will also have 1000-2000+ extra steps when I wear it on my right hand.
 
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