Lenovo's much improved Flex 5G makes this one of the best performing and longest lasting Windows on ARM PCs to date, albeit at a steep price.

The evolution of Windows 10 on ARM has been an interesting one for the last few years. Like any new category, it has taken time for the always-connected PCs to find their niche. While Surface Pro X finally put Microsoft's stamp on the technology, it is Lenovo who is taking it even further by being the first (and currently only) Windows 10 PC with built-in 5G connectivity.