Sale on the Samsung store with lots of very cheap Samsung straps (from £6) for the Samsung Galaxy watch 4 or 5. Some cheap chargers for phone or watch too.

Possible 10% extra off with code ACCESSORY10TUP although I haven't tried it.

https://www.samsung.com/uk/mobile-ac...amp=1664218804

The MiL just got a watch 5 so I've grabbed some straps for her, bag a few brownie points.