Can you upgrade the RAM in the new Dell XPS 13 2-in-1? | Windows Central
How to upgrade the SSD hard drive in a Dell XPS 13 (9360) | Jeff Geerling
Dell XPS 13 Teardown - iFixit
Frank Azor confirms XPS 13 7390 will have soldered SSD, "not very different from smartphones today" - NotebookCheck.net News
Dell XPS 13 9310 2-in-1 gets refreshed to include Intel Tiger Lake, Xe graphics, Evo, and Thunderbolt 4, but RAM and storage continue to be non-upgradeable - NotebookCheck.net News
How to upgrade the SSD in your Dell Inspiron 13 7390 2-in-1 | Windows Central