Logitech is poised to unveil the MX Master 4, the latest iteration in its acclaimed MX Master series. This new model boasts several refinements over its predecessor, the MX Master 3S. The mouse's left and right buttons now feature a matte transparent material, while the side thumb buttons have been relocated to the front, adorned with a wavy texture that enhances both usability and comfort. Furthermore, the indicator light has been repositioned beneath the scroll wheel mode switch, providing a more intuitive way to monitor battery status. Despite these upgrades, it remains unclear whether the MX Master 4 will address the commonly noted concern of its 125Hz polling rate, as there has been no official word on this matter yet.