Ultrabook or Workstation. The ZBook 15u G4 is a mobile workstation made by HP that - while cheaper than its brethren - still manages to meet the ZBook's high quality standards. Unfortunately, the light and thin workstation also comes with lower performance hardware. Find out whether or not the concept works as expected in our extensive review.
https://www.notebookcheck.net/HP-ZBook-15u-G4-7500U-FirePro-W4190M-Workstation-Review.256680.0.html