Logitech MX Master 4

The individually read exact manufacturer/source inventory does not identify a hardware sensor model. · Darkfield high precision tracking technology and supported sensitivity/glass claims remain separately represented.

Adjustable in 50 DPI increments.

Logitech support lists 125 Hz (8 ms) for both the USB receiver and Bluetooth.

Original manufacturer description: Darkfield high precision sensor. Logitech does not publish a sensor part number. Logitech says it works on virtually any surface, even glass, with a 4 mm minimum glass thickness. This identifies the advertised tracking technology; it does not identify a hardware sensor part or establish a hardware-generation difference from another Darkfield description.

Adjustable in 50 DPI increments; nominal 1,000 DPI.

Manufacturer-listed mouse weight.

The source labels its first dimension Height and provides no diagram establishing front-to-back body length. · The raw manufacturer-labelled H/W/D triplet remains preserved in Dimensions. Do not rename the listed Height as Length or use it as a typed length input.

Preserves the manufacturer’s exact height, width and depth labels. No manufacturer dimension diagram establishes an alternative front-to-back length or vertical-height axis mapping.

Manufacturer-listed Width; the source does not identify the measurement basis or a distinct grip-width measurement.

From the manufacturer's product views; Logitech's tables have no explicit hand-orientation field.

Logitech support lists Haptic Sense Panel, Gesture, Back, Forward, Top, Wheel and Left/Right.

Logitech comparison with MX Master 3.

Original manufacturer description: MagSpeed wheel with SmartShift: ratchet mode and hyper-fast mode (up to 1,000 lines per second); thumb wheel for horizontal scrolling. The exact feature inventory establishes the thumb wheel’s horizontal scrolling. The up-to1000-lines-per-second figure is a manufacturer claim; electromagnetic/mode details retain their original source scope. Shared named controls do not establish tested speed or accuracy superiority.

Options+ features and plugin customisation require Logi Options+ on Windows/macOS. The actual26September2026 technical inventory lists Adobe Premiere Pro as “Coming in October”; current availability is unverified. Native Windows haptics require the Windows11 update from the end of March2026 onwards; the feature instructions say to update mouse firmware through Options+ device settings, and control native haptics in Windows OS settings. No particular firmware version or independently tested app coverage is established.

Logitech states compatibility with both USB-C and USB-A Bolt receivers; the box contents list a USB-C Bolt receiver.

File transfer across devices uses Logi Options+.

Manufacturer claims; battery not user-replaceable.

Charging cable not included.

Original source-supported software description retained: Logi Options+ (button shortcuts, tracking speed, app-specific presets, Smart Actions, plugins, Actions Ring, Flow file sharing and copy-paste across devices); basic support in Logi Tune. Shared primary app identity does not imply identical software features. Specifically stated Haptic Sense Panel, haptic/OS/firmware conditions and multi-device/Actions Ring functions remain in their separate existing fields and editorial. The predecessor source does not establish absence of the extra listed software functions. The September source plan for Premiere Pro is not verified current availability.

Options+ customisation on Windows and macOS; basic functions without software elsewhere.

USB-C charging cable not included.

Logitech UK lists a 2-year limited hardware warranty; Logitech US lists 1 year. Regional terms differ.