If you recently purchased a Gear VR headset and were hoping it would work with the Note 8, you're fresh out of luck. The upcoming handset is too large to fit inside, but Samsung is launching a new version that will accommodate it and previous Samsung devices.
https://www.notebookcheck.net/The-Note-8-is-too-big-for-the-Gear-VR-so-Samsung-is-making-a-new-headset.244306.0.html
the note 8 is too long to fit in the previous Gear VR versions, but got it to work with a little dremel love
https://forum.xda-developers.com/galaxy-note-8-0/general/2016-gear-vr-vs-note-8-dremel-op-success-t3669478