fitbit is an expensive pedometer imo

That's my understanding too. I use Fitbit One and for me it is motivational but I have no idea how well it calculates calorie consumption. I don't have a HRM so I just use the FBO all the time and use whatever it transfers to MFP during my cardio workouts. I have been trying to figure out how far off and in what direction it's calculations are from calculated numbers based on body weight, heart rate, etc.

I can tell you that I have continued to loose weight even while I eat more based on the extra calories the FBO says I expended. But yes, it is essentially a glorified pedometer and that is how I too describe it to people, that said it seems to work ok for me and it is a mild motivator.

 Fit bit is bollocks. Did a massive cycle first thing and tracked it with a HRM. Added the activity cals and time into MFP. Later go out in afternoon with my daughter walking. Do another 5k steps so expect fit bit to add some cals for that. .......no. Fit bit cals added today. ...zero. even though I have extra exercise recorded via that alone.

Looked at it's reason behind it in the calculator and it wanted to take cals off me as it was trying to interfere with my cycle burn. The way I understood it was as long as you added the start and end time it saw that as a separate workout and left it alone.

The fitbit works by taking your completely sedentary BMR and gradually increasing during the day, your cycle would have spiked your calories for the day at that point. If you remained sedentary (5000 steps is sedentary, I have to get to 8000 before I get any calories added) for the rest of the day then you would gradually have lost that calorie spike.

Also what plan have you got it set to on fitbit? it took me about a week before I got the settings right for what I wanted it to do.

Fitbit has many flaws, but you seem angry for something thats not it's fault...

Track your food & your exercise on MFP, and the rest will all sync perfectly! I don't use Fitbits Dashboard for eating & I don't eat back exercised calories either.

Same for me, I don't use the fitbit dashboard, I do however eat back some of the calories. I have mine set for predictive so some days it will ADD calories, lowering my daily allowance. I'm not sure if it's accurate, I think so based on the numbers it gives me vs unsyncing it and adding time walked to MFP's exercise log. It's fairly great on steps so glorified pedometer it's doing exactly what I bought it to do which is get me walking more than I used to, seeing a low step count gets my butt up and moving.

Its not a glorified pedometer. It IS a pedometer.

Im not sure what else youre expecting it to do?

Maybe cable TV as well?

But it all depends on what you have set your activity level to on MFP and whether that included the exercise anyway. You are misunderstanding it somewhere. Have you read up about how it works? This is from MFP help;

What is the Calorie Adjustment in my Exercise Diary?
Last Updated: Jun 13, 2013 01:09PM PDT
MyFitnessPal pulls your calorie burn directly from our total daily calorie App Gallery partners. We then project forward to the end of the day based on your calorie burn so far. If this full-day number is different than MyFitnessPal’s estimate for your daily calorie burn, an adjustment will be made to your caloric intake goal. This adjustment can either be positive or negative. If the adjustment is positive, this indicates that your calorie burn for the day as reported by our partner is greater than MyFitnessPal’s estimate. If the adjustment is negative this indicates that the partner's reported calorie burn is lower than MyFitnessPal’s estimate.

Details about the calculation of any adjustment can be viewed by clicking the small "i" next to the adjustment in your Exercise Diary (on the full website), or by tapping the adjustment itself in the Exercise Diary of the latest MyFitnessPal iOS or Android apps.

Because the adjustment value is recalculated every time your device uploads new data, you should expect this value to change over the course of the day.

By default, MyFitnessPal will show you only positive calorie adjustments. To permit negative adjustments, log in to the full MyFitnessPal site at http://www.myfitnesspal.com and click "My Home" then "Settings" then "Diary Settings." Check the box for "Enable Negative Adjustments" then click "Save Changes"

If you are typically unable to sync your device until late in the day, you may wish to leave negative adjustments "off."

Would like to add though that it only measures step exercise. The Bodymedia Fit has a range of other sensors and is more accurate but is more expensive though and there is a subscription. Like so many things in life though- you get what you pay for.

Thanks, I was just wondering about purchasing one, I already have a good pedometer, so I wont bother with the fitbit

Walk at home - 6mi/10km
mins 81 cals 561
Walking, 3.0 mph, mod. pace, walking dog
mins 90 cals 329
Fitbit calorie adjustment
mins N/A cals 441

1st one added via MFP comes from my HRM rate
2nd one is from Endomondo automatically synced
3rd one is auto from Fitbit site

Close to 30,000 steps so far. See more you do OVER Fitbit's TDEE & MFP's setting....