When comparing KDE Neon vs solydK, the Slant community recommends KDE Neon for most people. In the question“What are the best Linux distributions for KDE Plasma 5?” KDE Neon is ranked 2nd while solydK is ranked 40th. The most important reason people chose KDE Neon is:
Since it's built on the strong Ubuntu base, KDE Neon works seamlessly with a huge variety of hardware.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Works out of the box
Since it's built on the strong Ubuntu base, KDE Neon works seamlessly with a huge variety of hardware.
Pro Configurability
KDE Neon uses KDE as its desktop environment, which is highly configurable, but also has great defaults.
Pro The best looking Linux OS
It really is a great and stunning looking OS.
Pro Works well on low-end computers
Pro Solid
As the name would suggest, SolydXK is rock solid Debian.
Cons
Con Steep learning curve for beginners
It's a really sparse, bare-bones system, no automatic driver install for example. It can be quite hard for someone not used to Linux.
Con Installer doesn't recognise partition table SOMETIMES
On a couple of occasions the installer has told me one of my disks is missing a partition table but it definitely has one and other distros haven't presented this warning.
Con Default theming not to everyone's tastes
The default icon theme in particular is IMHO pretty ugly. Easily changed but if you like to just plug & play without changing themes it may not suit you.