Please obtain the Samsung Pay application with the procedure as described below.
Galaxy Note8, Galaxy S8+ and Galaxy S8
Samsung Pay is already preloaded on your device. If you're unable to find it, simply go to Google Play to download the app.
For other smartphones
1. Go to Phone Settings
2. Click "About Device"
3. Tap "Download updates manually"
Samsung Pay will be installed with the Software Update. You can then tap on the Samsung Pay application as shown below in the App screen to install Samsung Pay.
For Gear smartwatch
1. If you can't locate Samsung Gear App in your device, please install Samsung Gear App from Google Play Store or Samsung Galaxy Apps
2. Launch Samsung Gear and select Gear smartwatch
3. Tap on Open Samsung Pay from "Info" tab or "Samsung Pay" on Settings tab.