For the first year my "floors climbed" was extremely accurate, being within a floor or two, even with 50= floors climbed.
Back in February, I began to get credit for more floors than I actually climbed, but by a few.
It slowly got worse, now I am getting double & triple of what I actually climb.
Around the same time I noticed that over a period of several days, my "altitude" creeps up by a few hundred feet.
It will reset with a GPS based activity (primarily cycling), and records relatively accurate data during any activity.
If I got three or four days without a GPS based activity, my altimeter will creep up from ~65 feet (accurate for where I live) to over 700 feet.
Firmware is up to date, I've soaked the watch in warm, soapy water, and there is no damage to it at all.
Any thoughts?
Thanks,
Peter