{
  "licence": {
    "name": "CC BY 4.0",
    "url": "https://creativecommons.org/licenses/by/4.0/",
    "attribution": "DataDesign (https://datadesign.one)"
  },
  "url": "https://datadesign.one/computer-mice/logitech-mx-master-4/",
  "product": {
    "id": "logitech-mx-master-4",
    "name": "Logitech MX Master 4",
    "brand": "logitech",
    "category": "computer-mice",
    "aliases": [
      "MX Master 4"
    ],
    "identifiers": {
      "mpn": "MR0118",
      "gtin": []
    },
    "lifecycle": {
      "status": "current",
      "announced": {
        "value": "2025-09-30",
        "source": "engadget-logitech-mx-master-4",
        "note": "Engadget's original hands-on post is dated 2025-09-30 and describes Logitech 'rolling out' the mouse that day."
      },
      "released": {
        "value": "2025-10",
        "source": "engadget-logitech-mx-master-4",
        "note": "Same Engadget post: 'costs $120 and will ship in October.' Console Creatures' review instead says 'Launching in September' — conflict unresolved, Engadget's dated hands-on preferred."
      },
      "predecessor": "logitech-mx-master-3s",
      "successor": null
    },
    "msrp": [
      {
        "currency": "USD",
        "amount": 119.99,
        "source": "logitech-logitech-mx-master-4",
        "as_of": "2026-09-21"
      }
    ],
    "specs": {
      "weight_g": {
        "value": 150,
        "source": "logitech-logitech-mx-master-4-specs",
        "note": "RTINGS measured 151.8 g on their unit, per rtings-logitech-mx-master-4."
      },
      "sensor_dpi_max": {
        "value": 8000,
        "source": "logitech-logitech-mx-master-4-specs"
      },
      "polling_rate_hz": {
        "value": 125,
        "source": "logitech-logitech-mx-master-4-specs"
      },
      "battery_life_days": {
        "value": 70,
        "source": "logitech-logitech-mx-master-4-specs"
      },
      "buttons_count": {
        "value": 8,
        "source": "logitech-logitech-mx-master-4-business",
        "note": "Counted from Logitech's 'MX Master 4 for Business' listing, which covers the same mouse hardware under SKU 910-007616."
      },
      "connectivity": {
        "value": [
          "Bluetooth",
          "USB receiver"
        ],
        "source": "logitech-logitech-mx-master-4-business",
        "note": "Spec sheet lists 'Connection Type: Wireless' and 'USB Protocol: Bluetooth Low Energy' only, with no receiver mentioned; the Logi Bolt USB-C receiver comes from the business listing: 'Wireless technology: Logi Bolt USB-C receiver, Bluetooth Low Energy'."
      },
      "hand_orientation": {
        "value": "right-handed",
        "source": "logitech-logitech-mx-master-4-business",
        "note": "From the 'MX Master 4 for Business' listing; the consumer product page is JavaScript-gated and could not be read."
      },
      "glass_tracking": {
        "value": true,
        "source": "logitech-logitech-mx-master-4"
      },
      "onboard_memory": {
        "value": false,
        "source": "engadget-logitech-mx-master-4",
        "note": "Engadget lists 'No onboard memory' as a con; RTINGS' Work-category cons separately state the same."
      }
    },
    "evidence": [
      {
        "source": "pcworld-logitech-mx-master-4",
        "rating": {
          "value": 4,
          "scale": 5
        },
        "pros": [
          "Great ergonomics and build quality",
          "Superb scroll wheel with adjustable resistance",
          "Long battery life and reliable sensor"
        ],
        "cons": [
          "Heavy and slightly sluggish when moving quickly",
          "Limited ability to create custom macros",
          "Scroll wheel feels a little loose in free position"
        ],
        "notes": [
          "The sensor tracks accurately on almost any surface, including glass, with immediate response.",
          "The MagSpeed wheel switches between a notched mode and a free-spin mode that can feel a little loose when moving quickly.",
          "The horizontal thumb wheel took a few days to get used to but suits spreadsheet work and video-editing timelines.",
          "The gesture button is clever in theory but the reviewer rarely used it, since keyboard shortcuts are often faster.",
          "Logi Options software is focused on app-specific workflows rather than free custom shortcut chains.",
          "Battery life held up well over several weeks, and the mouse can be used while charging via USB-C.",
          "The 125Hz polling rate feels less snappy than a gaming mouse when moving quickly, though the reviewer notes this isn't meant to be a gaming mouse."
        ],
        "verdict_quote": "I'd like a bit more software flexibility and a lighter weight, but overall, Logitech has refined a classic into something excellent."
      },
      {
        "source": "howtogeek-logitech-mx-master-4",
        "rating": {
          "value": 10,
          "scale": 10
        },
        "pros": [
          "New customizable action button",
          "Better material that doesn't stain as easy",
          "70-day battery life",
          "Haptic engine is a nice touch"
        ],
        "cons": [
          "$20 more than the previous generation at launch"
        ],
        "notes": [
          "The haptic engine feels off with the mouse powered down but feels natural once it's on, making the left/right buttons and gesture pad feel like ordinary buttons.",
          "A new third button ahead of the back/forward buttons defaults to the Actions Ring, but the reviewer reprogrammed it to trigger app Exposé on macOS, having already mapped Mission Control to the separate gesture pad button.",
          "Compared with the MX Master 3/3S, the reviewer calls the overall shape and layout a refinement rather than a full redesign.",
          "The reviewer suggests skipping the upgrade if you already own an MX Master 3 or 3S, unless you specifically want the new button or haptics, but recommends it for anyone coming from an MX Master 2S or older.",
          "The Mac version does not ship with the Bolt USB receiver."
        ],
        "verdict_quote": "one small update that changed my entire workflow"
      },
      {
        "source": "notebookcheck-logitech-mx-master-4",
        "pros": [
          "excellent ergonomics",
          "innovative haptic feedback",
          "long battery life",
          "high precision"
        ],
        "cons": [
          "haptic feedback only works with certain programs and is limited to the thumb area",
          "quite heavy"
        ],
        "notes": [
          "Setup is quick over Bluetooth or the included Logi Bolt USB-C receiver, and up to three devices can be paired and switched using a button on the underside.",
          "The housing is largely recycled plastic while the scroll wheels are aluminum; screws are accessible for repair and Logitech plans to offer replacement batteries.",
          "Haptic feedback comes from a vibration motor under the thumb rest, adjustable across four intensity levels or fully off, and is most useful with the Actions Ring and supported apps like Photoshop and Premiere Pro.",
          "NotebookCheck repeats Logitech's one-minute-to-three-hours fast-charge rating and notes the mouse stays usable on the cable.",
          "The reviewer notes the Logi Options+ software was still in beta at review time but proved reliable in testing."
        ],
        "verdict_quote": "A clear recommendation for power users who spend a lot of time at the computer and want to optimize their workflows."
      },
      {
        "source": "engadget-logitech-mx-master-4",
        "pros": [
          "Supremely comfortable for medium and large hands",
          "Tactile, near-silent click buttons",
          "High-quality, versatile scroll wheels",
          "More durable finish",
          "Pleasing (if gimmicky) haptic feedback",
          "Tons of software features"
        ],
        "cons": [
          "Not for lefties or small hands",
          "Bare minimum polling rate",
          "No onboard memory",
          "No storage compartment for USB receiver",
          "On the pricier side"
        ],
        "notes": [
          "Engadget treats it as an iterative update: shape, rated battery life, sensor resolution and click noise all carry over from the 3S.",
          "The MX Master 4 is slightly heavier, wider and taller than the MX Master 3S, with larger main click buttons.",
          "Haptic feedback lives in a thumb-rest panel and can be tuned or disabled in Options+; at launch it's natively supported only in Photoshop, Lightroom and Zoom, with Premiere Pro to follow.",
          "The rubbery 3S coating is replaced with textured plastic on top and denser rubber on the thumb rest and right side, aimed at better wear resistance than the 3S's coating.",
          "The Windows model's receiver is now USB-C instead of USB-A, and the reviewer found no accuracy issues with the scroll wheel after weeks of use.",
          "A follow-up note after a further month of use said impressions were unchanged, with no visible wear on the new finish and battery life matching Logitech's rating."
        ],
        "verdict_quote": "While not a major overhaul, the MX Master 4 refines an already great productivity mouse"
      },
      {
        "source": "gadgeteer-logitech-mx-master-4",
        "pros": [
          "Another awesome mouse",
          "Lots of buttons for advanced use/customization",
          "Smooth scroll wheel",
          "Comfortable",
          "Long battery life"
        ],
        "cons": [
          "It's more expensive than the previous version",
          "Include the Bolt receiver with the Mac version"
        ],
        "notes": [
          "The reviewer has used a Logitech MX mouse daily since an MX700 over 21 years ago, and compares the MX Master 4 directly against the MX Master 3S.",
          "The soft-touch coating that discolored on earlier models over time is now limited to the thumb rest and right-side finger area rather than the whole mouse.",
          "The Mac review unit did not include a Logi Bolt USB receiver, though it is compatible with one if the buyer already owns it.",
          "The new haptic Action button opens a customizable Actions Ring overlay; the reviewer calls the Action button and Actions Ring cool but says they don't use them, preferring existing keyboard macros and other tools such as Raycast.",
          "The review sample was provided by Logitech, which the reviewer says had no preview or final say over the review."
        ],
        "verdict_quote": "the MX Master 4 feels like a small, smart improvement rather than a total overhaul"
      },
      {
        "source": "consolecreatures-logitech-mx-master-4",
        "pros": [
          "Weighty, comfortable, a joy to use",
          "Haptic feedback is gimmicky but nice",
          "Action Ring and gesture button enhance productivity"
        ],
        "cons": [
          "No storage for USB dongle"
        ],
        "notes": [
          "The reviewer cites 150 g against the MX Master 3S's 141 g and says the difference is too slight to notice.",
          "States the fast-charge figure as three hours from ten minutes of charging, where Logitech's spec sheet and NotebookCheck both say one minute.",
          "The mouse uses Next Life Plastics (54% on the Graphite model, 48% on Pale Grey) and a low-carbon aluminum thumb wheel with recycled cobalt in the battery.",
          "Haptic feedback is used mainly for Action Ring commands and the gesture button; the reviewer would like to see it extended to browser use.",
          "Smart Actions templates can open apps like Chrome, email, Office and Zoom, including shortcuts to AI assistants such as Perplexity, Copilot, Gemini and ChatGPT.",
          "Battery dropped only about 5% over three weeks of the reviewer's typical use.",
          "The reviewer considers the polling rate acceptable for general productivity work, noting dedicated gaming mice offer far higher polling rates.",
          "Logitech provided a launch retail unit for the review."
        ],
        "verdict_quote": "the MX Master 4 is by far the best mouse I've used, and it's hard to go back to anything lesser"
      },
      {
        "source": "rtings-logitech-mx-master-4",
        "pros": [
          "Superb build quality.",
          "Dedicated productivity features, including dual scroll wheels, gesture button, and haptic button.",
          "Primary wheel switches automatically or manually between notched and free scroll.",
          "Connects wirelessly with an included USB-C receiver or Bluetooth.",
          "Very quiet right- and left-click buttons."
        ],
        "cons": [
          "Isn't well-suited for smaller hands.",
          "Many features, including gesture and haptic buttons require background software running to work.",
          "No onboard memory; software required to use customized settings."
        ],
        "notes": [
          "RTINGS found the mouse satisfactory for casual gaming but not designed for FPS titles, citing its weight and higher click/sensor latency versus dedicated gaming mice.",
          "The review also covers MMO/MOBA use, calling it reasonably good for casual play but noting the same latency and locked 125Hz polling-rate limits.",
          "RTINGS measured a default weight of 151.8 g on their unit, slightly above Logitech's stated 150 g.",
          "The review notes the polling rate is intentionally locked to 125Hz to help extend battery life compared with dedicated gaming mice.",
          "RTINGS names the MX Master 4 the best productivity mouse for most users despite the drawbacks, and suggests the Keychron M6 as a cheaper alternative with similar comfort and free-scrolling.",
          "Numeric scores and most measurement tables are member-only; this record cites the openly published verdict text, pros/cons, and the one visible measurement (default weight, 151.8 g)."
        ],
        "verdict_quote": "The Logitech MX Master 4 is an outstanding work mouse with superb build quality."
      }
    ],
    "consensus": {
      "score": 83,
      "confidence": "low",
      "n_sources": 2,
      "breakdown": [
        {
          "source": "howtogeek-logitech-mx-master-4",
          "normalized": 1,
          "weight": 0.6082
        },
        {
          "source": "pcworld-logitech-mx-master-4",
          "normalized": 0.8,
          "weight": 0.5272
        }
      ],
      "computed_at": "2026-09-22"
    }
  },
  "sources": [
    {
      "id": "logitech-logitech-mx-master-4-specs",
      "url": "https://support.logi.com/hc/en-in/articles/28321406604439-Specification-MX-Master-4",
      "publisher": "logitech",
      "type": "manufacturer",
      "title": "Specification - MX Master 4",
      "author": null,
      "published": null,
      "updated": null,
      "accessed": "2026-09-21",
      "products": [
        "logitech-mx-master-4"
      ]
    },
    {
      "id": "logitech-logitech-mx-master-4-business",
      "url": "https://www.logitech.com/en-us/products/mice/mx-master-4-business.html",
      "publisher": "logitech",
      "type": "manufacturer",
      "title": "MX Master 4 for Business Wireless Mouse | Logitech",
      "author": null,
      "published": null,
      "updated": null,
      "accessed": "2026-09-21",
      "products": [
        "logitech-mx-master-4"
      ],
      "note": "Business-bundle page for the same mouse; used for the button-count and connectivity fields the consumer specs page states only as an unlabeled list."
    },
    {
      "id": "logitech-logitech-mx-master-4",
      "url": "https://www.logitech.com/en-us/shop/p/mx-master-4",
      "publisher": "logitech",
      "type": "manufacturer",
      "title": "MX Master 4 Wireless Mouse | Logitech",
      "author": null,
      "published": null,
      "updated": null,
      "accessed": "2026-09-21",
      "products": [
        "logitech-mx-master-4"
      ]
    },
    {
      "id": "engadget-logitech-mx-master-4",
      "url": "https://www.engadget.com/computing/accessories/the-logitech-mx-master-4-comes-with-haptic-feedback-less-rubber-and-the-same-general-shape-070129482.html",
      "publisher": "engadget",
      "type": "expert-review",
      "title": "The Logitech MX Master 4 comes with haptic feedback, less rubber and the same general shape",
      "author": "Jeff Dunn",
      "published": "2025-11-10",
      "updated": null,
      "accessed": "2026-09-21",
      "products": [
        "logitech-mx-master-4"
      ],
      "note": "Originally posted 2025-09-30 as a hands-on; Engadget added an official review score in the Nov. 10, 2025 update, but the fetched page rendered the pros/cons and verdict text without a visible numeric score, so no rating is recorded."
    },
    {
      "id": "pcworld-logitech-mx-master-4",
      "url": "https://www.pcworld.com/article/2952361/logitech-mx-master-4-review.html",
      "publisher": "pcworld",
      "type": "expert-review",
      "title": "Logitech MX Master 4 review: The ultimate productivity mouse got even better",
      "author": "Anton Lindkvist",
      "published": "2025-10-28",
      "updated": null,
      "accessed": "2026-09-21",
      "products": [
        "logitech-mx-master-4"
      ]
    },
    {
      "id": "howtogeek-logitech-mx-master-4",
      "url": "https://www.howtogeek.com/logitech-mx-master-4-review/",
      "publisher": "howtogeek",
      "type": "expert-review",
      "title": "Logitech MX Master 4 review: Just the right upgrades",
      "author": "Patrick Campanale",
      "published": "2026-02-18",
      "updated": null,
      "accessed": "2026-09-21",
      "products": [
        "logitech-mx-master-4"
      ]
    },
    {
      "id": "notebookcheck-logitech-mx-master-4",
      "url": "https://www.notebookcheck.net/Logitech-MX-Master-4-review-Premium-mouse-with-haptic-feedback.1152292.0.html",
      "publisher": "notebookcheck",
      "type": "expert-review",
      "title": "Logitech MX Master 4 review - Premium mouse with haptic feedback",
      "author": "Daniel Schmidt",
      "published": null,
      "updated": null,
      "accessed": "2026-09-21",
      "products": [
        "logitech-mx-master-4"
      ],
      "note": "No publish date was shown on the fetched page; the English translation credits Daniel Schmidt as editor of the original German article."
    },
    {
      "id": "gadgeteer-logitech-mx-master-4",
      "url": "https://the-gadgeteer.com/2025/10/13/logitech-mx-master-4-mouse-review-my-new-favorite-mouse/",
      "publisher": "gadgeteer",
      "type": "expert-review",
      "title": "Logitech MX Master 4 mouse review - My new favorite mouse!",
      "author": null,
      "published": "2025-10-13",
      "updated": null,
      "accessed": "2026-09-21",
      "products": [
        "logitech-mx-master-4"
      ],
      "note": "Published date taken from the URL's date path; no in-text byline or date was rendered by fetch_page."
    },
    {
      "id": "consolecreatures-logitech-mx-master-4",
      "url": "https://www.consolecreatures.com/logitech-mx-master-4-review/",
      "publisher": "consolecreatures",
      "type": "expert-review",
      "title": "Logitech MX Master 4 Review - Productivity Almost Perfected",
      "author": null,
      "published": null,
      "updated": null,
      "accessed": "2026-09-21",
      "products": [
        "logitech-mx-master-4"
      ],
      "note": "The review box renders a numeric score of 9 immediately after the cons list, but no scale (e.g. /10) appears anywhere in the rendered text, so no rating is recorded per EDITORIAL §2 (never guess a locked or unlabeled scale)."
    },
    {
      "id": "rtings-logitech-mx-master-4",
      "url": "https://www.rtings.com/mouse/reviews/logitech/mx-master-4",
      "publisher": "rtings",
      "type": "lab-measurement",
      "title": "Logitech MX Master 4 Review",
      "author": null,
      "published": "2025-10-29",
      "updated": "2026-04-16",
      "accessed": "2026-09-21",
      "products": [
        "logitech-mx-master-4"
      ],
      "note": "Numeric scores and most measurement tables are locked behind an RTINGS membership; only the published verdict prose and pros/cons text were readable and are cited here."
    }
  ]
}