AWS Backup is a fully managed service that automates and centralizes backup management across AWS services, including EC2, RDS, DynamoDB, EFS, and more. It offers features like backup policies, backup scheduling, and backup compliance reporting. AWS Snapshots, specifically EBS snapshots, are point-in-time backups of EBS volumes. While snapshots can be manually created and managed, AWS Backup provides a more comprehensive and automated solution for managing backups across different AWS resources, with options for cross-region and cross-account backups.