Some recent rumors claim that Samsung could launch quite a few Galaxy A handsets this by the end of the year, and the Galaxy A40 is one of them. The device with the model number SM-A405FN has recently surfaced on Geekbench and its specs include the Exynos 7885 processor, 4 GB RAM, and Android 9.0 Pie-based software.
https://www.notebookcheck.net/Samsung-Galaxy-A40-spotted-on-Geekbench-with-Android-Pie-onboard-Exynos-7885-and-4-GB-RAM-in-tow.394851.0.html