Introduction

The Galaxy M31s is the latest in Samsung’s line of all too similar phones. It is the upgraded version of the Galaxy M31, which is similar to the M21 and is an upgraded version of the M30s. All of these phones look very similar, have nearly identical specifications with a few bits swapped around, and have all been released in the span of a year.
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https://www.gsmarena.com/samsung_galaxy_m31s-review-2163.php