Samsung has just launched the Galaxy M42 via Amazon in India. It is the first ever M-series phone to support 5G, and also offers quad rear cameras, a 5,000mAh battery and OneUI 3.1 based on Android 11. It will start at ~US$270 on its May 1, 2021 release.
https://www.notebookcheck.net/Samsung-announces-pricing-and-availability-for-the-5G-enabled-Galaxy-M42.536102.0.html