Who sold more albums black sabbath or metallica?

Metallica has sold more albums than Black Sabbath. As of now, Metallica is one of the best-selling music artists worldwide, with over 125 million albums sold. In comparison, Black Sabbath has sold around 70 million albums globally. Both bands have had a significant impact on the heavy metal genre, but Metallica's commercial success surpasses that of Black Sabbath.