Lenovo has revealed that its smartphone flagship, the Z6 Pro, has a 5G variant. However, no pricing or availability information for this device has been released. The OEM has also confirmed that the Z6 Youth Edition does indeed exist, and will launch on May 22, 2019.
https://www.notebookcheck.net/Lenovo-makes-the-Z6-s-Pro-5G-and-Youth-Editions-official.420810.0.html