So overall do you guys recommend this HU?
4gb+64gb on android 11 for Suzuki Swift or should I look for a different brand. I do really like the screen size tho, 9 inch is perfect.
I think there is no perfect Android head unit available and the seller support is really really bad.
But the Junsun V1 Pro with! 4G is one of the head units you have a chance to get help here in XDA.
Fly over this thread and you get an idea which problems may occur.
Here is one more: https://forum.xda-developers.com/t/junsun-v1-pro-megathread.4385315/
Because the head unit laggs of features that are important for me, I even created my own app:

AppSwitcher - smart SWC launcher (for Junsun, Xtrons and similar devices) incl. autostart
AppSwitcher SWC (Steering Wheel Control) app launcher Stay focused on the street and don't touch the head units display to switch between apps. Support the development of this free app via ko-fi.com/appswitcher Please note: This app is...

And let me mention that Junsun sells different variants of the Junsun V1 Pro with different CPUs and different firmware. Junsun is like a box of chocolates, you never know what you're going to get.