Explanation:
Two days ago, I biked my first outdoor imperial century (AKA over 100 miles), but didn’t immediately take a picture of my watch displaying the data as I usually do.
Today, I tried to access it and found out that the watch deletes all data weekly and considers Sunday the first day of the week.
What it has to do with Christianity:
It makes absolutely no sense to consider Sunday the first day of the week rather than Monday. Unless you follow stupid standards established by people who consider the last day of the weekEND holy and thus want to give it pride of place as the starting day rather than the final day of the week.
While it has nothing to do with that (US uses Sunday as first day, Europe uses Monday as first day) it just resets weekly but the data is still there. You need to connect it to its app, maybe even Gadgetbridge if you’re lucky (don’t know what watch is yours). Also I’m pretty sure it has an option to change the first day of the week (usually in the app).