If you happen to be on AIA vitality or any other EPP programme with Samsung, it's a pretty good deal consider cheapest I've seen here were $499 + Shipping.
It's a 30% discount and if you buy another item then there will be another 10% discount on top which I don't think it'll be cheaper during boxing day sale.
The watch is based on android and it should be pretty good for the price consider Garmin and Fitbit are way too expensive for a semi smartwatch.
I've grabbed the fold 3 512gb for $1956 with the watch which pb is on sale for $2599. However it's still an expensive phone with mixed review, will see how it goes.