For me it'd be more like 3300 using my rough as guts 300 cal/30min but I'm big and fast fat.
Oddly you have agreed with me on three occasions!
I have a Polar HRM - I will try to compare it with the Apple Watch data next week. I have read that the Apple Watch is the most accurate HRM but the test may have been with watches and not chest HRMs.
You must've been right three times :)
Apple's(?) claim is bullshit. No finger, wrist, palm, etc HRMs are as good as chest strap Polars.
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For me it'd be more like 3300 using my rough as guts 300 cal/30min but I'm big and
fastfat.