Hi, I found my One was very accurate for me in terms of calorie allowance when I logged my non-step friendly workouts (yoga, weight lifting, swimming, etc). I would have to work very hard to burn 2000 calories a day though so I would lose weight eating 1400-1600 most days when I was dieting. I also have a Surge, and Charge HR. I actually get fewer steps with the wrist worn than I do with the One. I have mostly worn my Surge during workouts and sometimes desk-bound days (which is bulky for a female wrist, the face is wider than my wrist). My calorie burn was pretty similar on the Surge as the One other than I don't seem to need to log activity as much. Strangely, I don't recall how the Charge HR compares other than it counted fewer steps than my One. To me, not knowing all your stats your calorie allowance did sound high (for your height and weight though there are other factors). Are all your settings correct? Oh, one other thing about MFP. I am not sure whether I am giving outdated advice but this is based on my experience when I had MFP and Fitbit linked... Set your activity level higher to reflect your true activity level not sedentary. If you are getting more than 3000 steps a day, you are not sedentary. Back when I used MFP (over a year ago now), MFP was deducting the deficit off the base activity level. In my case, if I was set for 1 pound loss, the sedentary activity level setting only added about 350 calories to my BMR. So that was all the deficit that was taken off no matter how active I was in reality. That really isn't a big enough margin of error for me. When I set it to lightly active, MFP took off the whole deficit that I requested so my allowance would actually end up lower at the higher activity level setting than at sedentary. At that level I needed about 7,000 steps to see fitbit adjustment, if your steps are consistently higher you might even want to list your level as active. I also did not log any calorie burning exercise on MFP because it also adds it on top. I logged the exercise to Fitbit directly. I saw a lot of people struggle with this issue when I was using MFP and Fitbit together as it can work well, but in some cases can result in too high an allowance. I don't know about the Alta, it looks pretty. I would be interested to hear how it compares. But I would suggest reexamining your settings especially with the integration between MFP and Fitbit.
... View more