But, give Apple some time and they'll screw that up for at least a while.
My Apple Watch, series 4, would have roughly 75% battery charge when I took it off at night and put it on the magnetic charger. Then the Watch IOS got updated to version 7.0 and the battery charge state went to 10% at the same time of day. Fortunately, after a while, they upgraded the IOS again and things went back to normal.
Apple really sucks when it comes to proper testing before an IOS upgrade is released. They are now working at low testing standards like Microsoft.
My Apple Watch, series 4, would have roughly 75% battery charge when I took it off at night and put it on the magnetic charger. Then the Watch IOS got updated to version 7.0 and the battery charge state went to 10% at the same time of day. Fortunately, after a while, they upgraded the IOS again and things went back to normal.
Apple really sucks when it comes to proper testing before an IOS upgrade is released. They are now working at low testing standards like Microsoft.