https://wccftech.com/sony-ship-at-least-3-million-ps5-march-4-5-million-shipped/

PS5 sales have surpassed 4.5 million units and Sony aims to ship at least 3 million additional units before March 31, 2021.

Sony just published its most recent quarterly financial results (Q3 FY2020), and as of December 31st, the company managed to ship 4.5 million PS5 units. For reference, this number is on par with the number of PS4 units that shipped during its launch quarter, back in 2013.