In the first week after its May 10 launch, Uncharted 4: A Thief's End sold 2.7 million copies worldwide. Sony specified that number combines physical as well as digitally distributed copies, and is units sold-through, not just shipped.
Uncharted 4 debuted at the top of the charts in Japan and has led the UK charts for two weeks running. It also received plenty of critical acclaim to go with that commercial success, and currently carries a Metacritic score of 93.