On the first question, I'd also go with the HRM, since it's tracking your HR and estimating the calorie burn from that, rather than just time and type of exercise (I'm assuming that's how the wi calculates calorie burn)
highest weight ever:202, SP starting weight: 143
New goal: 125 lbs, just to see what that looks and feels like! Hit it: Feb 2013!
H: 5''4" 49 y.o.
"Don''t let yesterday use up too much of today." Will Rogers
"Eat Food, Not Too Much, Mostly Plants" Michael Pollan
| current weight: 8.6 over