Dell XPS 12 9250 - 12,5" Notebook - Core m7 3,1 GHz 31,8 cm

The Dell is well-built and has a great, sharp 4K screen that displays films and photos in crisp 3840 x 2160 pixels. The working speed was consistently high when tested, but the Dell is not suitable for gaming - but that also applies to most other convertibles, which are not made for gaming anyway...

Comparable devices are not much cheaper - the Surface Book from Microsoft is similarly expensive. Nevertheless, 1837 euros is a lot of money for a convertible - even for the well-equipped XPS 12. However, with the exception of the somewhat short battery life, the Dell has no major weaknesses: It is well-built, works quickly and has a great, sharp 4K screen.