Shipping, price and settlement via Amazon were as always good. Everything worked fine. The device has keien pixel errors and has also otherwise no defects.
Conclusion:
Good equipment, nice picture, but the native resolution (3840 x 2160 pixels) is too high for the screen size.
Because of this "conceptual flaws" a star less.
Tip:
Test Commercially whether you come etc. cope with the font sizes.
Otherwise buy devices with somewhat lower resolution or select at this high Auflsöung devices with larger screen sizes.
