ESXI redundant failover with 2 servers running ESXI and windows server VMs

I have 2 new Identical Servers both running VMWare ESXI 6.5  my plan is to run 4 windows server 2016 Virtual Machines on these Host servers.  What i want to confiure is failover so that the servers are redundant.  If there is an issue with one ESXI Host machine and lets say it powers off.  That the Virtual servers it is running will be picked up by the second Host server.  Is there a VMware product that will real time replicate between the 2 hosts with a "heartbeat" so the 2nd server will pick up and become live if the first server goes down?

My question is what VMware product do i need to have this function as mentioned?  Vmware HA (high availability)?  V-Motion?  

Also what licensing will i need to accomplish this?  Currently i have a Vsphere essential kit. (not essentials Plus)
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VMWare will restart the vm,s on the surviving host in an ESX cluster running HA.
Travis MartinezStorage EngineerCommented:
It appears from the "Compare Kits" section of:

That only the Plus version gives you the ability to configure an HA cluster.
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
VMware HA will provide high availability, but it will restart the VMs, on other hosts, so there will be downtime.

VMware FT is the feature, which will keep two VMs in step, if the first fails, the second will continue providing service, with Zero Downtime!

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TechGuy_007Author Commented:
it looks like the VMware Fault tolerance is what i need that you andrew

now i just need to figure out the licenses
looks like ill need at least vsphere standard to get the FT functionality i need
Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
Correct, vSphere Standard and above includes FT.

but check out FT, because it does have some caveats!
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