Here is another camera that lets you capture high-resolution immersive video. The Kandao Obsidian VR Camera lets you capture high-quality stereoscopic 360-degree videos with up to 8K resolution. It has 120fps slow motion capture capability.
The Kandao Obsidian is portable and has a metal body that weighs 1.2kg, so it is drone ready. Has 60 mbps & 100mbps options. You can find out more about the camera here.