I bought mine because I wanted to get a good idea of my TDEE. I use it in conjunction with a Polar FT4.

I use the FT4 when cycling, swimming, strength training and using a treadmill on an incline. I log the start times and durations of these activities on MFP which links across to fitbit. I let fitbit do the rest. I wear it every day and I do use the sleep function too.

I was never sure if my TDEE should me moderate or high activity but having the fitbit helped me get a more accurate picture and my TDEE works out around 2750 which falls just below the most strenuous activity setting according to Scooby (which gives TDEE 2794).

I also looked into the Bodymedia Fit but it's very expensive in the UK and I didn't want to have to pay the subscription fee on top of that so using fitbit and FT4 combined was my compromise and it seems to be working for me so far.

1. My TDEE is much much higher than the calculators. I severely underestimated my activity level when I started EM2WL. But even at the extremely active level on Scooby, my TDEE is still higher on my fitbit.
2. I don't have an HRM, but if I did, I would use both!
3. I wear my fitbit 100% of the time. I use it as the fitbit website says, tracking all activity and inactivity on the fitbit website. I use the sleep function, but I'm not entirely convinced of it's accuracy.

I've heard of problems with driving, that it logs that as exercise as it goes with the motion of the car etc. Have you incurred this problem at all? Thanks

I have encountered it to some extent. For me, it only adds a few steps, but no floors. It's not a big deal to me since I "sit dance" in the car anyway, so I'm sure I should earn some extra movement! Joking aside, if you track that time as driving, it's supposed to remove the extra steps.

So ... I'm thinking of getting one to get a more accurate TDEE. I've just got a few questions for Fitbit owners!

1. Was your TDEE close to the one given by online calculators?
2. If you also own a heart rate monitor (I have the Polar F6 and LOVE it), does the Fitbit replace it?
3. What do you use your Fitbit for and is it worth the investment?

That is all. Thanks!! :flowerforyou:

1. Was your TDEE close to the one given by online calculators?
Sadly, it was less than the online calculators. I've really been busting my butt this week and at the HIGHEST it has been 2,388.... That's with a walk to the store, a run and weight lifting. It looks like a truly sedentary day would around 1800.

2. If you also own a heart rate monitor (I have the Polar F6 and LOVE it), does the Fitbit replace it?
I still use both, but only replace my weight lifting HRM calories on the Fitbit site. I let the Fitbit calculate my walks and run.
I'm still trying to figure this all out......so I still log separately on MFP and haven't linked the Fitbit to this site until I understand it better.

3. What do you use your Fitbit for and is it worth the investment?
I've only had mine for less than a week, but I love it! I've been stuck for a LONG time, so I'm using it to see if I can lose some fat. :flowerforyou:

Good luck!

So ... I'm thinking of getting one to get a more accurate TDEE. I've just got a few questions for Fitbit owners!

1. Was your TDEE close to the one given by online calculators?
2. If you also own a heart rate monitor (I have the Polar F6 and LOVE it), does the Fitbit replace it?
3. What do you use your Fitbit for and is it worth the investment?

That is all. Thanks!! :flowerforyou:

Hi
1 No Since I am disabled but not bed-ridden - I was above sedentary but not at light or even halfway between sedentary & light -it would have way too much trial & error to figure out what I was without the fitbit.
2 nope - no prior HRM
3 Constantly & I love it. Bought it mostly to see how many calories I was burning but it does encourage me to take more steps. I do not use the stair counter - I take elevators so it would be worth getting a Fitbit Zip. At $60 it is totally worth it. At 90+ it is still worth it. I use the sleep function too. I averaged waking up 7.2 times in Aug & 7.1 in September. But I am seeing that I average around 8 hours of sleep & pretty good efficiency.