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Want have 945, Question: ist there really a baro design flaw? (because on back)

Former Member
Former Member

Hi together,

I want to buy a new watch. Like the 945 so much because same as Fenix, but more sportier and light.
But I do also a lot of things in the mountains.
Calibrating the watch and washing, cleaning no problem.
But there are Discussions, if these watches have a design flaw, because of baro hole on the back.
Can this really get inaccurate due to sweat during a 10h session in the mountains, if cleaned before each time?

It is hard to believe that Garmin makes such a flaw.

What do you think? Is there a official Garmin statement?

Or would be a Fenix 6s the better option with hole on side if I want to have accurate altitudes?

Thanks!

  • add to your list the new sleep tracking features ;-), the power modes the new widget design and so on :(. unfortunately the list gets pretty long...

  • Former Member
    0 Former Member over 5 years ago

    hi,

    Or would be a Fenix 6s the better option with hole on side if I want to have accurate altitudes?

    There is a post in the German forum where users have strange baro readings while biking.

    Suggested to wear the watch on the opposite wrist and results were better and more stable baro readings.

    so Fenix design....meh Slight smile

    happy & safe sporting

  • Forerunner 945 does indeed have backcountry ski app now.

    Don't know if I would consider indoor climbing and indoor bouldering mountain sports.

    Just to be fair. 

    Ski Maps aren't really useful in my oppinion either. 

  • I live in the Cascade Mtn Range and the majority of my activities are geared towards mountaineering. I also have the backcountry ski app on my 945 and I too don't consider the indoor apps mentioned part of mountaineering.  No problems with my barometric altimeter either. 

  • Former Member
    0 Former Member over 5 years ago in reply to Elbo
    On my forerunner 935 with a similar design the barometer is next to useless

    Never had a problem like you described with either my 935 or 945.  Are you sure the sensor wasn't defective as opposed to a design flaw?  

    I just turned it of and never bothered with it. 

    How did you turn off the barometer?

  • Former Member
    0 Former Member over 5 years ago

    It is hard to believe that Garmin makes such a flaw.

    What do you think? Is there a official Garmin statement?

    I don't know if you already made your decision or not, but I'll throw in my two cents anyway.  I don't believe there is a design flaw, therefore no need for Garmin to make a statement.  I don't buy into the sweat causing a failure unless you're unhygienic and haven't rinsed or cleaned the watch after several days and salts and debris build up and dry inside the port.  I've had many activities where it was raining, I've sweated profusely, or jumped in and out of pools, lakes and the ocean and the barometer continued to work fine.  The biggest problem I think people experience with their barometric altimeter is they don't know how to use it properly.  The altimeter will naturally have a drift, so frequent calibration to the correct elevation is a must.  Most will calibrate the altimeter, but neglect to calibrate the barometer to the correct pressure and here's where the "problem" starts.  If my watch had drifted to 500 feet and I corrected the elevation to 400, this will change my barometer reading roughly + .10 inHg in pressure   If I then neglect to calibrate my barometer to the correct pressure and start a run, the barometer will start correcting itself.  The watch can and will interpret this drop in pressure as a 100 foot gain in elevation.  This is why you read so many post about "my start and finish point where at the location, and my barometric altimeter must be faulty because I have a = or - difference in elevation".   When I ask what was the start and finish pressure readings they have no idea.  Well, how to you help troubleshoot an issue if there may be no issue at all?

  • Former Member
    0 Former Member over 5 years ago in reply to Former Member

    Thanks very much! Very good profound answer! I think the same.

    The design flaw topic was heavily discussed with the instinct in this forum and came sometimes up on the 9x5.
    I also had an early instinct and could say that the counted ascent was heavily incorrect.
    I could see that the holes on bottom on the instinct were very moistened with sweat after 5h of trail running.

    So this made me think of that point. My baro and altitude very calibrated everytime correct. Counted ascent was not so good...

    But it could also have been an early issue with the instinct and got corrected with sensor hub updates...
    I gave away the instinct, but now want again a Garmin watch (945 or Fenix).