Overview

• The MX Master 4 is available now at €129.99 in multiple colorways and introduces a smaller USB‑C Bolt receiver alongside Bluetooth with multi‑device pairing.
• A built‑in vibration motor delivers configurable haptic responses, and Logitech’s SDK enables app integrations at launch in Adobe apps such as Photoshop.
• Logitech rates a new 650 mAh battery for up to 70 days of typical use, with fast charging that adds several hours of runtime after a short top‑up.
• Hardware changes include a rougher, grippier coating, a stronger wireless link from a new chip and antenna design, a weight of about 150 g, an 8,000 dpi sensor, and a retained 125 Hz polling rate.
• Early testing praises the tactile feedback and materials but flags buggy beta software and the lack of an included USB‑C cable, while Logitech keeps the cheaper MX Master 3S in market and offers a managed for Business variant.