A:AnswerJaz. The Osmo is a 3 axis stabilized 4K 12MP camera. It uses a mechanical gimbal to accomplish the stabilization. The gimbal stabilizer is what makes it so much more powerful than a normal camcorder.
A:AnswerIt depends on the case. Since the Note 8 is a very large phone and Otterbox cases are usually quite rugged, it is unlikely it will work with your case on.
A:AnswerYes you can use it on facebook livestream. And the Osmo is ideal for first time user. Go to the DJI website to download the manual to read in full and check out helpful videos on YouTube (https://dl.djicdn.com/downloads/osmo/20170310/Osmo+User+Manual+v1.4.pdf)