Logitech MX Master 4 Leaked: First Pictures Hint at Imminent September 2025 Launch

Logitech’s highly anticipated MX Master 4 mouse has reportedly been leaked, with initial images surfacing online and regulatory certifications pointing to an upcoming release. This successor to the popular MX Master 3S is expected to launch around September 2025, bringing subtle design refinements and potential technical upgrades to the beloved productivity peripheral.

Accidental Reveal and Certification

The first glimpses of the MX Master 4 emerged from an accidental post on Logitech’s official Instagram, which was quickly removed but not before screenshots circulated. Concurrently, the device, identified by model number MR0118, received Bluetooth certification from Anatel, Brazil’s telecommunications regulator, on May 9, 2025. These combined events strongly suggest an imminent product launch.

• The MX Master 4 (model number MR0118) has passed Bluetooth certification in Brazil.
• An accidental teaser image was briefly posted on Logitech’s official Instagram.

Design Evolution

While the leaked images indicate that the MX Master 4 retains much of the familiar MX Master aesthetic, several subtle design changes are apparent:

• The thumb scroll wheel has been repositioned slightly forward.
• The main left and right mouse buttons appear to occupy more surface area.
• The texture of the thumb rest and the overall shape have undergone minor revisions.

Anticipated Improvements and Speculation

Although specific technical details remain under wraps, the MX Master 4 is expected to build upon its predecessor’s strengths while addressing potential areas for enhancement. Users are hopeful for improvements in:

• Polling Rate: The MX Master 3S’s 125Hz polling rate via Bluetooth and USB dongle could be upgraded for smoother performance, especially on high-refresh-rate monitors.
• DPI Resolution: An increase from the current 8,000 DPI of the Darkfield laser sensor would offer greater precision.
• Weight: While a productivity mouse, a reduction from the MX Master 3S’s nearly 5 oz weight could be welcomed.
• USB Dongle Storage: The addition of an internal storage compartment for the USB dongle would enhance portability.

Given the typical release cycles and the recent certification, industry observers anticipate the Logitech MX Master 4 to hit the market around September 2025. Pricing is expected to be slightly higher than the current MX Master 3S, which retails for approximately $99.99.

Via Reddit