@Flex05: I recommend registering Samsung Pay on your Galaxy S10 via the Galaxy Wearables app, which will then link to your Galaxy Watch Active 2 when connected, allowing you to make NFC payments. 1. On your Mobile Device, launch Galaxy Wearable App 2. Tap OPEN SAMSUNG PAY and follow the on-screen instruction to complete your card registration 3. To make a payment on your Galaxy Watch Active 2, press and hold the Back key 4. Scroll through the cards list, select a card and tap PAY 5. Place your Galaxy Watch Active 2 close to the Card Reader
@Nerijus. Thanks for confirming this. Have you searched the Gear App store to see if the Samsung Pay app is available to download? Where did you buy your Galaxy watch Active 2 from? Also, is the software on the watch up to date? You can check this in Settings > Watch Software update.