Logitech’s highly anticipated MX Master 4 mouse has been revealed through a series of leaks, showcasing subtle yet significant design modifications and hinting at an imminent official launch. These revelations come from accidental publications by Logitech itself and certifications from regulatory bodies, building excitement for the successor to the popular MX Master 3S.
Next-Gen Design Unveiled
Recent leaks provide a clear glimpse into the design evolution of the MX Master 4. While maintaining the ergonomic core that made its predecessors a hit, the new model introduces several refinements:
- Subtle Aesthetic Tweaks: The overall shape and texture of the thumb rest have been slightly revised, and the left and right mouse buttons now occupy a bit more surface area.
- Thumb Scroll Wheel Repositioning: The thumb scroll wheel has been moved slightly forward for potentially improved accessibility.
- New Side Button: A notable addition is a third button on the side, whose function remains a mystery but could potentially be AI-related, aligning with current tech trends.
- Enhanced Side Cutout: The side features a more pronounced cutout, clearly indicating the position of its mappable button.
- Relocated LED Indicator: The charging/battery LED has been moved to beneath the scroll wheel, below the button that activates smooth scrolling.
Imminent Launch and Certification Details
The impending release of the MX Master 4 is strongly suggested by its certification in Brazil. Tecnoblog discovered that the MX Master 4, identified by model number MR0118, received certification from the Brazilian telecommunications agency Anatel on May 9. Furthermore, Logitech briefly published an image of the mouse on Instagram, which was quickly deleted but not before being captured by a Reddit user. These events collectively point to an official announcement being very close.
Potential Technical Upgrades
While the leaks primarily focus on design, there’s speculation regarding potential technical improvements over the MX Master 3S. The MX Master 3S, despite its popularity, had some areas for enhancement:
- Polling Rate: The 3S had a polling rate of only 125Hz, which can feel sluggish on high-refresh-rate monitors. The MX Master 4 could see an upgrade here.
- DPI Resolution: The Darkfield laser sensor in the 3S offered 8,000 DPI. An increase in DPI resolution would be a welcome improvement for precision.
- Weight and Portability: The 3S weighed nearly 5 oz, and lacked an internal storage option for its USB dongle. The MX Master 4 might address these aspects for better portability.
- Material Quality: Some users reported low-quality materials on the 3S, leading to hopes for sturdier construction in the MX Master 4.
These anticipated upgrades, combined with the revealed design changes, position the Logitech MX Master 4 as an incremental yet significant evolution in the brand’s flagship mouse line.
Via NotebookCheck


