Karl Hein is a 24-year-old professional football player from EST. He currently plays for SV Werder Bremen, wearing the number 13 shirt. At the international level, he represents Estonia. He plays primarily as a Goalkeeper. He stands at 193cm tall and weighs 80kg. His preferred foot is Right. His current market value is estimated at 3M €.

His most recent move was a Loan from SV Werder Bremen to Arsenal on 2026-06-30.

In the Bundesliga 2025-2026, Karl Hein played 23 matches, averaging 0 interceptions, 0 tackles, and 0.2 clearances per game.