Amazon Aurora Global Databases are designed to provide a fault-tolerant solution by automatically replicating data across multiple AWS Regions, which helps meet the requirements for high availability and cross-region disaster recovery. This feature is particularly useful for read-heavy database workloads that require low-latency reads across geographically dispersed locations. Amazon RDS multi-AZ deployment is limited to a single region and therefore does not support cross-region replication. Amazon DynamoDB and Amazon Redshift are not designed to handle automatic cross-region replication for read-heavy database workloads in the same seamless manner as Amazon Aurora Global Databases.