I second that if you want accurate, and especially during workouts - you gotta get a heart rate monitor with a chest strap. A lot of those fitbits/nikebands/jawbones are essentially glorified pedometers, and all they know is that you're moving - not how fast or how much energy you're using or anything else. I just got a Polar heart rate monitor (the FT7), and have found that SP was underestimating my calorie burn by about 700 calories per week - it was hugely motivating to see that a run where I really exerted myself wasn't 220 calories - it was 420!
It won't count your all day calories - but to be fair just about nothing will without plugging in estimates. You could just as easily make that estimate for much cheaper.
Do something everyday that your future self will thank you for.
| current weight: 179.8