Monsta X’s best-selling album is FANTASIA X, which was released in 2020. This album sold over 2,070,622 copies, making it their highest-selling album overall.
However, when it comes to first-week sales, their album REASON holds the record, selling 326,503 copies in its first week, which is a personal best for the group.
Monsta X has sold over 5 million albums in total, with most of their sales coming from Korea. Their albums often receive platinum certifications, indicating strong sales and popularity.
In addition to their Korean success, Monsta X has also achieved recognition in the United States, with albums like The Dreaming debuting on the Billboard 200 chart and becoming one of the best-selling albums in the U.S. for a week.
Overall, Monsta X is known for their energetic performances and catchy music, which has helped them build a strong fan base worldwide.