This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

Swimming in a pool - practically unusable (time to sell the FR255)

This is my third Garmin watch (year 2018 - Garmin Swim, the best for swimmers, then in 2022 - Garmin Swim 2 - unusable as FR255, and now - FR255).

I see that the swimming activity algorithm was completely changed starting from model Swim 2 and (reading all other Garmin models forums) is still developed for all other watches. Unfortunatelly.

There is only one function swimmers need in a swimming pool - counting pool lengths (without pressing a button on every turn). Using that old "Garmin Swim" watch for a few years this function worked nearly perfectly and in my observation just light pushing the wall while turning with hand (no full flip was needed) was enough for the watch to "tick" the counter. More of ith - the watch was able to automatically "recalculate" (when clicking "Save") all the activity to correct potential wrong counting. But after the watch stopped working after a few years, I bought a new model "Garmin Swim 2" - it was a BIG step backward.

It is hard to find a description (in Garmin docs) of what is used as a counter trigger. Probably they look for a moment when you swim a few seconds after turning without moving your hands. It doesn't work. Especially, when I swim on my back with simultaneous (symmetrical) movement of both hands - I look at the watch and all the pool length the counter doesn't even start. You maybe can say that - ok, a few lenhgts in plus or in minus is not a big problem, but it is more of it. When you train a constant distance you can not make any comparison, any analyze and more of it - the watch saves you "virtual" records (sometimes I get better intermediate times than Michael Phelps ;-) ). Saying in one word - I was not paying for it.

The strange for me is that the watch can perfectly count my steps going up the stairs (the stairs are about only 20-30 cm high) but CAN NOT count about 30 full-hand moves through the 25-meter pool length. He just doesn't even notice it. Further - why it doesn't use the COMPASS to see that I turned and started a new length swimming in OPPOSITE DIRECTION?

As I said, losing lengths is not the only problem, sometimes it adds lengths and I can not find out what influences it. It seems like the watch makes a kind of calculation during activity and adds another falsification of results.

So, please Garmin developers - make the swimming activity usable, my suggestions are above. You can attract more customers or lose them. Now you are losing much...

p.s.

Settings colors on the watch face for swimming activity don't work - there is always a white background during activity and always a black background while resting (hard to read on the pool).

  • The counting is spot on for me with the Forerunner 255. I am a slow front crawl swimmer, and I can't do flip turns. With my older Vivoactive watches the counting was usually slightly off, both missing and adding lengths.

  • I swim 5 times a week semi professionally and the fr 255 never has any issue with tracking my distance. Yes sometimes it misses 25m but that's very rare. You might have to wear the watch tighter but I don't know honestly 

  • why it doesn't use the COMPASS to see that I turned and started a new length swimming in OPPOSITE DIRECTION?

    I wonder how you imagine this? After all, the watch is on the hand, and with each stroke the wrist moves forward and backward(opposite directions).

  • The algorithms used by Garmin are secret, but there has been many speculations over the years that the compass is involved. I think it should be possible to track when the movement pattern turns around by using the compass along with accelerometers. The Forerunner 255 even has a gyroscope that could be used for the purpose.

  • but there has been many speculations over the years that the compass is involved.

    Depends on the competence of those involved,
    There have been many speculations over the years that the Earth is flat - but this has not turned out to be true

    For example , FR55, Swim2 do not have a compass, and cope with determining turns. As for the “secret algorithm”, there is an explanation:

    The watch looks for a pause in strokes to indicate the user has reached the end of a length

    NOTE: The type of turn (flip, touch, open) does not matter as long as you have a long glide following the push-off.

  • Mine pretty much always counts my lengths correctly. The only time it doesn't is when I have to slow down drastically due to lane traffic and it thinks i've done 50m instead of 25m. If it's still under warranty I would try getting it replaced?

  • Maybe the only way to get the right counting is to swim as Garmin developers modeled it - any deviation from the model creates problems.

    After reading your post I have made a special measurement - swimming only one style all the time, swimming very monotonously, making pauses and the end of the pool - and counting was right. But that we can do with watches for a few of $, not hundreds of $...

  • It must be possible to recognize the direction I swim because the watch can recognize the style of swimming, and can recognize if I swim freestyle or backstroke (completely different orientation of body) - they probably analyze the series of data, not single signals.

  • As I said at the beginning - I was using Swim 2 and it was wrong while counting too.

    The link you gave is very interesting. The watch waits for a pause at the end of the poll. Hmm... when somebody swims with full flips or swims with fast turns there is no pause on turn... The next point is - the watch waits for a strong push-off. So when I swim I have to do all the tasks Garmin developers planned for me...

    Imagine, that all people practicing running with Garmin have to take steps in the right (planned by Garmin) way, to correct counting. They would throw the watches into the trash.

    I wonder what rocket science Garmin would need that swimming to be the same easy to watch as running, or walking steps?

    Maybe I was wrong expecting a smartwatch with a "swimming mode" to just monitor the swimming. The way Garmin monitors swimming is the same level as in smartwatches for a few EUR - that's why I wrote, that it is time to sell it. 

  • I have made an experiment today - changed the style of swimming in the middle of the pool - Garmin recognized it as a new pool length...

    So, it is stupid - would be enough to see the number of strokes and period of time in this example - no one can swim all the 25 lengths with 6 hand strokes in so short time! So the algorithm is really weak...