Microsoft is selling a wide range of Windows Mixed Reality headsets, but the best of the lot appears to be the Samsung Odyssey.
For one, the screen has two 1440 x 1600 screens, slightly higher than the standard 1440 x 1440 screen per eye in the other devices. The screen is also OLED, which makes for much better contrast levels than the LED screens in the cheaper devices, and offers 110 degree field of view. The headset also features built-in AKG headphones and dual-array mikes but still lets you plug in your own headphones. The headset is apparently also one of the most comfortable to wear.
The only downside of this headset was its pricing, at $499 it was the costliest WMR headset on the market. Samsung is now offering a $100 discount on this headset, so you can get it for just $399.