Logitech has officially launched its latest flagship productivity mouse, the MX Master 4, which introduces haptic feedback and a redesigned Action Ring for enhanced control. This new model, priced at $120, maintains the iconic shape of its predecessor while incorporating improvements for better performance and build quality. The MX Master 4 has received praise for its innovative features and is being touted as the best productivity mouse available, particularly for right-handed users. Reviewers highlight how these upgrades, including a USB-C Bolt Receiver and a focus on sustainability, make it a game-changer for professional work environments.