The Samsung Galaxy series is noteworthy for its pioneering role in bringing Android into mainstream popularity beginning in the early 2010s.

At the time, the brand's flagship smartphone was the Samsung Omnia and its successor, powered by Windows Mobile.

[7] During the decade, the Galaxy phones "became the company's most-praised products [and] also were among the best-selling smartphones in the world.

Since 2022, the Ultra model has been targeted towards power-users, replacing the Note series that was aimed towards the same demographic.

The Galaxy A series is Samsung's line of low- to mid-range smartphones sold since 2014 (and formerly premium mid-range from its introduction until 2021), providing a more affordable alternative to the high-end Galaxy S series or Fan Edition devices the with reduced specifications and features.

The Galaxy XCover series is a line of rugged "business" phones, which have low-end specifications but with stronger build quality and durability.

[8] There are two sub-categories currently under this series: Samsung announced the Galaxy Gear, a smartwatch running Android 4.3, on 4 September 2013.

In a software update in May 2014, Samsung replaced the operating system of the Galaxy Gear from Android to Tizen.

Since late 2019, several Microsoft apps like Outlook also come preloaded[21] on Galaxy as a result of a Samsung-Microsoft partnership.

[22][21] Samsung have made several tools for making various Galaxy devices like phones, tablets and watches, work closer together.

A spokesperson clarified the policy, stating that it was intended to prevent grey-market reselling, and that it only applied to the first SIM card inserted.

Due to the fact that many variants use a Multi-CSC, it will only work with SIM cards from the same CSC group.

"Over the Horizon" is the trademark sound for Samsung smartphone devices, first introduced in 2011 on the Galaxy S II.

While the basic composition of the six-note tune has not changed since its inception, various versions of different genres have been introduced as the product line evolved.