If you buy an action cam with a screen and camera in one body then its uses are limited without the use of a hp as a screen
Imagine if you mount the action camera on a tripod or something and you try to film yourself
Imagine if you mount it to your chest/backpack shoulder strap and try to film
Imagine mounting on your helmet and filming
Imagine mounting it on a selfie stick
You'll need your hp to use it as a screen otherwise how to see and control what you are filming.
Yes, the specs are better than the Insta360 Go Ultra but you must know what an action cam is use for. If you want to film videos and take photos to keep as rememberance and watch on your large 70 - 80 inch 4K/8K tv then forget it. Use a traditional camera instead
Action cams are meant for instant recording and quick upload to share in social media apps. They are intended to be viewed on small screen and hp i.e. small screen size device. And, they are intended to have minimum need for color grading, reframing and postproduction. In view of this usage the image quality (sensor size is immaterial and superior details are not important) might not be the only factor you would want of a small size action camera e.g. like ease of use, versatility, how you want to capture videos etc
IMO, a detachable screen from the camera is a better buy like the Go Ultra or the upcoming Osmo Nano and it'll solve all those mentioned problems without the need of using the hp