Dell VMAX All Flash is the latest iteration in the former Symmetrix series of enterprise flash array storage, available in the Dell VMAX 250F edition, or the Dell EMC VMAX 950F edition.
The EMC array is a lot more robust, but the PURE array does almost the same with about a tenth of ease from the configuration. It really depends on the type of backend servers that you need to support as to whether you need a EMC array or a PURE array.