Tecno has laid claim to the launch of the first ever Android smartphone with a rear-mounted lens capable of extending and retracting like that, as the OEM notes, of a "real" camera. The Phantom X2 Pro is also presented as a premium device otherwise, with a flagship-grade 5G SoC, a large AMOLED display as part of a "dual-curved" design and 12GB of RAM.https://www.notebookcheck.net/Tecno-Phantom-X2-Pro-5G-touted-as-the-world-s-first-retractable-portrait-lens-smartphone.675565.0.html
Did Samsung not do this almost 10 years ago with the Galaxy S4 Zoom? It also has a retractable lens.