Cristie CloneManager vs Datto SIRIS

Cristie CloneManager Replication provides continuous system replication across physical, virtual and cloud environments. It supports file-based and block-based replication; block-based replication can lower recovery point objectives compared with file-based replication. Replication can target virtual disk image files in VHDX, QCOW2 and VMDK formats, as well as AWS, Azure, Oracle Cloud and S3 blob storage. The software monitors source systems and can automatically fail over after an outage, with DNS changes if needed. Multiple systems and their failover and failback can be managed through one interface. Teams can create sandbox test environments, including on physical systems, without interrupting continuous replication. RPO monitoring includes reports and email notices when replication falls outside target RPOs. The supported systems matrix includes Windows and Linux and virtualization platforms such as VMware vSphere, Hyper-V, AWS EC2, Microsoft Azure and Oracle Cloud Infrastructure. Replication costs $500 a year per protected system, with 12 months of support and maintenance. A free trial is offered, but no fixed duration is stated.

Datto SIRIS has no write-up on Specifiction yet; its figures are above.