Despite mixed reviews from critics, Samsung’s Galaxy S5 smartphone is proving to be another hit for the company, with 11 million of the phones sold in the first month of launch. The sales figure, disclosed Thursday by a company spokesman, suggests the S5 is performing slightly better than its previous model. Last year, the Galaxy S4 sold 10 million units in 27 days after it went on sale. But the days of a huge year-over-year sales boom for Samsung phones may be passing. When the S4 went on sale a year ago it sold 10 million units in almost half the time the Galaxy S3 needed to reach that figure. As for the older Galaxy S2, it was on sale for five months before reaching the number.

And even though 11 million units is still a big number, the figure shows Samsung’s flagship phone grew in sales by only about 10%. This is far lower than overall shipment growth in the smartphone market, which rose 29% year over year in the first quarter, according to research firm Canalys. The Galaxy S series phones have been Samsung’s flagship line, and are built with some of the latest technologies. In the case of the S5, the Android phone has a fingerprint scanner along with a heart rate monitor, in addition to a HD screen and cutting-edge processor.