Swim mode - very inaccurate length count

[masolin]

When I manually turn on the swimming mode, my Fitbit ionic tracked very inaccurate length count, I swam 20 lengths and it only tracked 8 lengths. I feel that it tracks well in the first few lengths, and it gets stuck after a while. From my current experience, the Fitbit auto tracking swimming mode tracks much more accurate length count.

Does anyone have the same feeling like me?

Inaccurate length count on swimming mode

Accurate length count on auto-tracking swimming mode

[Dirk74]

Hi,

can't confirm.

This is one of the few things on the Ionic which (luckily) works. I usually swim 3 km with 25 m lanes. It always counted correctly.

Did you set the length of the lane? It does not automatically detect it!

If so, avoid stopping in the mid of the lane or changing stroke style.

Greetings

Dirk

[masolin]

Hi Dirk74,

Thanks for the reply. I set the length of the lane when I first time wore my Fitbit Ionic to swim, and I tried it again to not to changing stroke style, but it still doesn't work. It got stuck after 11 lengths.

Feel disappointed about it. Swimming is the main reason I change my Charge 2 to Ionic. Hope Fitbit can improve it soon.

Thanks,
Maso

[Dirk74]

Hi Maso,

swimming is important for me, too. I'm really surprised it doesn't work for you, as I'm swimming 3000 m in a training session and it doesn't miss one lane.

Maybe the acceleration sensor is damaged?

Greetings

Dirk

[Jess_B]

I've noticed discrepancies in my lap counts. I swim with a masters team, so we have a variety of swim, drill and kick during our workouts. The Ionic doesn't track kick sets at all, sometimes has issues with drills, and sometimes misses regular swim laps. The meter total at the end of my swim never matches what we have actually completed based on the written workout.

[SunsetRunner]

Same here.

It tracks twice my distance.

I do flipturns.

Distance setting is correct for pool size.

[SunsetRunner]

I'm experiencing the same issue, it's pretty inaccurate. I think it has to do with the way the Ionic counts the laps based on turns. It really needs to detect a specific movement of the wrist for a turn. The pool length is only used for counting the total distance, and not in counting the number of laps. I noticed that if I shake my wrist violently at the end of a pool length it immediately counts it, whereas if I just swim and not think about it it only counts about half of the laps I do.