Is Current Account surplus the same as Savings-to-Investment surplus?

are they the same?

CFAI states:

if Current account surplus(deficit), then currency will appretiate(depretiate)

Schweser sates:

if Savings/Investment surplus(deficit), then currency will depretiate(appretiate)


I think there is little diff

Current surplus mean exp > import -> demand (from foreigner importers) for the currency > supply for the currency --> currency appreciate

Saving > investment --> local interest rate decrease --> currency depreciate…

Current account deficit and Savings-Investment gap are the same.

This is an accounting identity in Economics.