An alternative would be to boot into the bios and shut down from there

Well yes, because 2 of them have a phone and a desktop computer

I heard of the heart rate issues in a lot of reviews, but it just works on my (and my dads) skin. Its bad that it doesnt work for everyone though. I found a stupid workaround for background heart rate monitoring, you just start the manual monitoring and then close the app on the watch, which doesnt stop the monitoring.

We only had sync issues only on my dads phone, my phone (Fairphone 5 w. CalyxOS) works just fine. The issues on his phone were fixed by an Android update a few weeks ago.

Im happy with the battery, it lasts longer than a fitbit we have.

I dont think its a perfect watch, but for <50Eur with shipping its not bad

Static DHCP Lease

He ordered it from the global store a few month ago, it took ~2-3 weeks to ship to germany.

Thats the only issues he told me. I also tried it for a day and didnt notice anything else it cant do, which i need. He and I only need it to show notifications/calls, track steps/heart rate, have a working alarm and show the time. I also didnt have the disconnect and notification issues, that he had.

My dad got one shipped (imported) to germany for less than 50Eur. The 3 issues he had was that the notifications didn’t work on his phone (an android update fixed that), random disconnects on some phone models and that the current alarm app only supports one alarm.

I dont know how you flashed the usb, but it seems like the installer is damaged. Try redownloading the iso, check the file hash, flash the usb drive with balena etcher and reinstall.

Did you change the partition layout in the installer?