Unless you have been living in a cave for the last year – or more likely just not watching any top-level professional golf – you will have seen more and more players wearing a new, swanky band on their wrists. Whoop is a revolutionary fitness tracker that measures strain, recovery and sleep, and has been the must-have gadget for many of the world’s best sportspeople to help give them that physical edge they need.
Whoop was the brainchild of Will Ahmed, a former captain of the Harvard