Samsung will release the Galaxy M42 soon exclusively through Amazon India. This device is most likely the Indian-market rebrand of the pre-existing A42. The OEM has confirmed that this version still runs on the Snapdragon 750G processor, and is thus a 5G smartphone.
https://www.notebookcheck.net/Samsung-announces-an-Indian-launch-for-the-Galaxy-M42-through-Amazon.533142.0.html