Generally, though, the cheapest will be the Cosmos Play, which has 4-camera inside-out tracking (as opposed to the six cameras in the Vive Cosmos), and no built-in headphones (again, unlike the Vive Cosmos).
The HTC Vive Cosmos Elite adds external tracking to the mix via an External Tracking Faceplate
The price is steep, though: $899, though Cosmos and Cosmos Play owners will be able to upgrade to the Cosmos Elite by purchasing the $199 faceplate, which will become available in Q2 2020.Â