Just that really - when I attempt to manually calibrate the altimeter to a known spot height (e.g. my house), the watch will take what I enter as a gentle suggestion, and the elevation will gradually move to what I've input over the course of several minutes (like 10-15mins). This happens regardless of whether the manual adjustment I made was large or small. Every now and then it will work straight away, but it's totally unpredictable. Is anyone else having this problem?
Doing a reset to factory settings fixes it temporarily, but the problem comes back. Same with turning it off and on again. I shouldn't have to do repeated factory resets on a brand new watch though - for £300 I am seriously unimpressed and wishing I had bought something different.
In addition to being unable to manually calibrate it, the elevation jumps about randomly when I'm running, giving me total ascent that is 40% - 90% higher than it should have been for every trail run. I run in the hills, so I'm talking hundreds of metres extra elevation every single time. I've had this problem since my very first run with it, and trying different settings (auto / altimeter / auto calibration on/off)) hasn't done anything. (I fully understand how altimeters work and the need to calibrate before starting the activity etc..).
It appears that sweat gets into the sensor and stops it working - but it's pretty predictable that a runner is going to sweat! Why have Garmin not sorted this out?
I am trail & fell runner / climber / ski tourer and ALL my activities take place in the hills, so if the altimeter doesn't work this watch is useless to me. I've used GPS and altimeter watches for over a decade and never had this issue, so it shouldn't be hard to get right.
