I do agree that rolling out payments feature in the existing watches is possible.But according to me, Samsung won't roll it out as it is already coming into the watch 6 series.And to generate sales of the series, the feature will remain capped at the...

hardware should be compatible with the android version 10

You simply use the Device Care option and head to "BATTERY" there you should find everything related to the battery

M and A series will get the beta versions from late November