Sync your Reading List to read interesting articles from any device at any time.
Make use of the browser's Sync feature to add custom Search Engines to Vivaldi on Android
Check the status and availability of Vivaldi's online services on vivaldistatus.com.
Download the backup encryption key to be able to restore access to synced data even when you have forgotten the encryption password.
Find debug-level information and controls about the state of Sync on vivaldi://sync.
Synchronize your browser data to access open tabs on other devices.
Use Sync to access tabs that are open in Vivaldi on your other devices.