Open-water swim distance differs from the track recorded? (Todays swimrun 352m vs. approx 750m, unacceptable)

so why if I try with the other watch like i did it is works?, sorry, I am not a programer, I dont understand well this topic but if the SW is buggy is supposed to be for all the units and not for someones. THe other fenix 6x that I tested worked ok.

sorry guys i dont want to say that your are not right, I am as disapointed as you on this topic. But I dont understand why it works in some unit and no in others.

regards,

To me this is new news that it works in some units and not in some units? Where was the proof for this? I've seen that it works for some users better, which might be due some reasons not triggering the fault or it's smaller.

And you can't compare 955 vs 6X and say other units. It works properly also in my 945, but not in 955.

Also Fenix 7 series has similar reports, eg. https://forums.garmin.com/outdoor-recreation/outdoor-recreation/f/fenix-7-series/303727/fenix-7x-solar---open-water-swim---correct-gps-track-but-bad-distance 

So it's more related to the newer devices having MediaTek/Aihoa's new multi channel GPS chipset.

I just put in this thread a comparison between two fenix 6 x pro. One in my right wrist and other on my left, same model and software, the only diference is the manufacturing date

So both are 6x? What has it to do with the 955 then? And different hands may lead to different results, would need more samples, switching hands and etc to be more conclusive.

Indeed. Perhaps the GNSS receiver works better in a particular orientation. Would be an interesting experiment to swap the watches over and repeat the swim.

Yes and don't know how this is relevant with 955 problems, but if we would say that the 6X works better in X hand when swimming it might be interesting how the antenna's are located and would 955 have similar results, would it be the reason some don't have the problem and some do. But then again, 955 is plastic housing so it shouldn't be so critical for that versus metallic housings.

At least my 955 is on my left hand.

the test I made that I show on this thread:

fenix 6 x pro (supposed buggy) on the left hand

fenix 6 x pro ( with accurate result) on the right hand

next time I will try swap them and post the results

The GPS hardware in the Fenix 6 is completely different from the one in the FR955 so I don't see the relevance at all.

but the problem is the same across diferents models, so what is you conclusion?