Motion Based Question

[OakLeaf]

The Forerunners do not have the barometric altimeter, so for those, MotionBased recommends that you turn on the Gravity correction.

We went for a hike in the woods this afternoon. I was hoping the slower speeds of hiking might bring all the results closer - not so. I brought my Edge 705 with me (partly for the barometric altimeter, partly because of the receiver that's much more sensitive than my Forerunner 301). Even so, with the tree cover, the reception was poor. So everything's going to be off - but FWIW, the data displayed in the unit called it 5.1 miles with 727 feet of elevation gain. GTC calls it 5.1 miles with 863' of climbing (and 859' of descent to the start point, so pretty close on the net anyhow). SportTracks calls it 5.98 miles with 1053' climbing (but only 956' descent!). MB, with autocorrect on and Gravity off, calls it 5.94 miles and +1076/-1050.

As far as speed smoothing, GTC had a max speed of 4.5 mph (probably about right); ST says max speed of 19.1 mph! (I hate to turn the smoothing up because it honestly seems pretty accurate on the bike - wish it would let you set smoothing differently for different sports). MB didn't smooth that spike out too well either - it gives me a max speed of 17.2.

What's the most accurate? Who knows - only thing I know for sure is that the max speeds on ST and MB are in need of some serious smoothing.

EDIT: I realized that I still had my 705 turned to smart recording. Probably for a hike, especially under tree cover, it would've been a lot better to set it for 1 second recording. Doh.