A helper app to remap the Samsung Pay button shortcut on the Galaxy Watch 4/5/6 to Google Pay on watches in regions shipping without Samsung Pay preinstalled.
Watches that ship without Samsung Pay end up with a long-press shortcut that they can't remap. This app makes the shortcut launch Google Pay instead.
NOTE: Requires a watch reboot to take effect.
NOTE: On Wear OS 4.0 (One UI 5), the user needs to grant the app the SYSTEM_ALERT_WINDOW permission in order for it to be able to launch the Google Pay app from the background.
adb shell pm grant com.samsung.android.samsungpay.gear android.permission.SYSTEM_ALERT_WINDOW