No, the watch charger on the OntheGo™ Qi2 3-in-1 Wireless Charger is not compatible with Samsung Galaxy Watch or other non-Apple smartwatches.

The foldable watch charger on the OntheGo™ Qi2 3-in-1 Wireless Charger is designed only for Apple Watch. To see which Apple Watch models are supported, see OntheGo™ Qi2 3-in-1 Wireless Charger Device Compatibility.