Sunshine1528
Cathlete
compared the calorie burn simultaneously? (Or are you willing ? 
)
I am wondering if it is worth purchasing a GWF or something similar if I already have a Polar F6 HRM and could wear that 24/7 to figure my calorie expenditure.
TIA ! ! !
)I am wondering if it is worth purchasing a GWF or something similar if I already have a Polar F6 HRM and could wear that 24/7 to figure my calorie expenditure.
TIA ! ! !