Watch-only mode is an optional feature that allows you to log in to a Blockstream Green wallet with limited permissions. Note: The watch-only feature is only available for the Blockstream Green mobile app. You can update your wallet's watch-only mode login details via your mobile wallet's settings. 1. On your wallet's home screen, tap the Settings icon in the bottom left corner. 2. Tap Watch-only login. 3. Enter your new login details and tap Save. 4. Your watch-only mode login details are now updated.