OnePlus has sold over 1 million units of its latest smartphone, the OnePlus 6, in just under a month, according to company founder and CEO Pete Lau speaking with Business Insider.

Lau said the sales benchmark actually happened in 22 days — the two previous phones OnePlus released each took three months to reach the same milestone. While 1 million sounds like a large number, it’s quite small in relation to sales for phones like the Samsung Galaxy or Apple iPhone, which can move tens of millions of devices within the same amount of time, or less.

OnePlus phones don’t have the same availability to consumers as other, more popular companies. The phones are sold directly to consumers and aren’t supported by CDMA networks, so some carriers, like Verizon and Sprint are out. Despite the fact that half of US wireless customers can‘t consider OnePlus as an option, there is a loyal fan base. The OnePlus 6 costs $529 and the company’s phones consistently outperform their price point in both quality and functionality.