The F(x)tec Pro 1 is a modern take on the slide-out keyboard that was once so common on Android phones. While the physical keyboard is quite unique, the phone is running on Qualcomm's Snapdragon 835, a two-year-old SoC. The F(x)tec Pro 1 is expected to launch in July for US $650, but pre-orders are open now.
https://www.notebookcheck.net/The-F-x-tex-Pro-1-brings-slide-out-keyboards-back-to-smartphones.410929.0.html