Series 9.Which apple watch?
I have a cheap Huawei GT Runner, only $130 that time on offer in Shopee. Bro Ender shared info in which youtubers did somewhat scientific tests and found it to be nearly at the top (take that info with a small grain of salt, i just take it as it is as i am not ngeow).
I do TTs along same routes and the variation literally is just 20-40m or so for 5k so 40m is pretty acceptable for the top end. At my rooftop which i run quite a fair bit (zero blockage from satellites), per 800m per standard round, variation ranges from none to 10m at most which is within margin error coz it involves six 90 deg corners per round so depending on how you cut them there should be differences.
If the same 400m you are talking about is a stadium;s running track, then the variation might be wierd, though i guess some watches is like that.
I think I got the answer .
“GPS only records every few seconds. This results in it missing some of the distance you run in corners since the watch draws a straight line between points.”
when I look at my data , is really the case especially on curves where it cuts in deeply .
this will under report the distance and cause the reported pace to slow .
