So, you want to develop an AR/VR device, and start shopping for hardware.
You’re not a mega company (yet), wanton get to market fast, so you want to focus on the AR/VR features, not on getting an OS, drivers and libraries for (3D) graphics up and running. You also want something (somewhat) portable, and assurance that you still can get hardware to deploy your stuff on X years from now.
You also don’t want to order a million units up front.
Given those constraints, I think you’ll find Android is your best option.
You’re not a mega company (yet), wanton get to market fast, so you want to focus on the AR/VR features, not on getting an OS, drivers and libraries for (3D) graphics up and running. You also want something (somewhat) portable, and assurance that you still can get hardware to deploy your stuff on X years from now.
You also don’t want to order a million units up front.
Given those constraints, I think you’ll find Android is your best option.