Insta360 had a large presence at NAB Show 2017. Among other things, they had an Insta360 Pro with 4k live streaming and realtime image stabilization (!). Realtime stabilization is also in the Nano for iPhone and in a few weeks will be in Air for Android. Where to buy:
Insta360 Pro ($3499; available May 18): https://goo.gl/wYpGLo
Insta360 Nano (for iphone; $199) https://goo.gl/Iiuew6
Insta360 Air with Micro USB (for Android; $129) https://goo.gl/PxrOn4
Insta360 Air with USB Type C (for Android; $129) https://goo.gl/zVe4qA
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