The Samsung Galaxy M series is a line of primarily online entry-level and mid-range budget smartphones manufactured and developed by Samsung Electronics, marketed primarily for India and other emerging markets. The first models in the series, the Samsung Galaxy M10 & M20, were released on 5 February 2019; they were followed by the Samsung Galaxy M30 on 7 March and the Samsung Galaxy M40 on 18 June. The Samsung Galaxy M10s and Samsung Galaxy M30s were announced on 18 September, and both were released on 29 September. The Galaxy M01 and M11 were released on 2 June 2020 and were available for sale on both online and offline platforms. On 10 September, Samsung announced the Galaxy M51, the first upper mid-range model in the lineup.