Insta 360 X3 vs X4

I'm new to action cameras. I have been thinking about buying it for almost a year. After doing some research, find that insta360s are actually providing some cool features. But now I'm confused between X3, X4 and X5. I can get them at 28.5k, 42k and 52k respectively. Can any camera enthusiast suggest me if the newer version is worth the extra money pay?