VMware vSphere Replication is a BC/DR solution that enables you to replicate VMs to the same vCenter Server or even to a different vCenter Server running on another site. You can also utilize third-party service providers who offer disaster recovery to cloud solutions where the primary VM is replicated to the service provider environment.

vSphere Replication is a available for both vCenter Server for Windows and for vCenter Server Appliance, and it is included in every license starting from Essentials Plus.

Once you enable the replication, any VM can be replicated to the other site. If it is required (for example, because of low bandwidth between sites), the initial replica can be transported using offline media, and once it is at the targeted site, the delta data is transferred over the network. Only the changed blocks are transferred between sites using the Change Block Tracking (CBT) feature of vSphere.

You have the option defining your own RPO ranging from 5 minute to 24 hours depending on your needs, and you are able to use multiple points in time (MPIT), in which case you will be able to store up to 24 snapshots of each replicated VM.

Of course, this is not the only VM-based replication solution; several third-party products provide more features and capabilities. Most native backup products also have VM Replication features, and so, in this case, they could be cost-effective solutions, especially if you already have that specific backup product.

There are also some replication products that can replicate VMs not only across the same virtualization platform but also across different types of hypervisor such as Zerto. You can find more information about the technology at https://www.zerto.com/solutions/use-cases/cross-hypervisor-replication-vmware-hyper-v-aws/