essential plus comes with the below. bear in mind that you can only purchase 1 essential plus for your organization and there is no upgrade path. it comes with 3 physical (2cpu) host license and a vcenter for essentials. it's a deal too good to be true.
VMware ESXi or VMware ESX hypervisor architecture (deployment-time choice, VMware recommends the ESXi hypervisor architecture)
VMFS (Virtual Machine File System)
4-way Virtual SMP
VMware vCenter Server Agent
VMware vStorage APIs / VMware Consolidated Backup (VCB)
VMware Update Manager
VMware High Availability (HA)
VMware Data Recovery
VMware vCenter Server for Essentials
VMware vMotion
VMware vSphere 4 Standard includes the below. it is based by CPU license does not come with vcenter server license. but the good thing is that there i no limit on how much you can buy. you will need to purchase vcenter server foundation/standard separately.
VMware Hypervisor or VMware ESX hypervisor architectures (deployment-time choice, VMware recommends ESXi)
VMFS (Virtual Machine File System)
4-way Virtual SMP
VMware vCenter Server Agent
VMware vStorage APIs / VMware Consolidated Backup (VCB)
VMware Update Manager
VMware High Availability (HA)
VMware vStorage Thin Provisioning
VMware vMotion
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