Logitech MX Master 4: Review, Specs & vs 3S Comparison

The Logitech MX Master 4 stands as the flagship option in Logitech’s productivity mouse lineup. Haptic feedback, a USB-C upgrade, and a refined click feel set it apart from the 3S that came before. Here’s everything you need to know before you decide whether it’s worth the switch.

Sensor DPI: 8000 · Battery Life: 70 days · Scrolling Tech: MagSpeed · Surface Compatibility: Glass · Time Savings: 33%

Logitech MX Master 4 vs 3S

The comparison most shoppers care about comes down to a handful of meaningful hardware shifts. The MX Master 4 tips the scales at 150g — noticeably heavier than the 3S at 141g — which translates to a more substantial feel in the hand according to hands-on testing (Dans Kingdom Blog). That extra heft matters during long work sessions, especially for users sensitive to mouse weight.

Key differences

• USB-C charging on the 4 versus USB-A on the 3S
• Hard textured plastic replaces the grippier soft-touch rubber coating
• Quieter, more refined click feel with dampened bottom on the 4
• Action Ring menu accessible via the thumb button on the 4

Performance upgrades

Both models share the same 8K DPI Darkfield sensor and track flawlessly on glass surfaces, per RTINGS.com’s technical benchmarks. The scroll wheel on the 4 has a looser feel and quieter operation, though some reviewers prefer the tighter tension of the 3S. Haptic feedback in the thumb rest delivers a premium buzz when switching devices — a feature the 3S simply doesn’t have.

Price comparison

Pricing varies by region and retailer, but the 4 typically commands a premium over the 3S at current market rates. Buyers weighing the upgrade should factor in the software dependency: the 4 requires Logi Options+ running at all times, while the 3S works with the older Logitech Options without that constraint.

Logitech MX Master 4 software

The MX Master 4 runs exclusively on Logi Options+, Logitech’s newer software platform that replaces the older Logitech Options used by the 3S and earlier models.

Installation process

Downloading Logi Options+ from Logitech’s website gets you the full suite, including Smart Actions for macro-style automation and plugin support for third-party integrations. The installation is straightforward but requires a restart in some cases.

Customization options

The Action Ring — triggered via the thumb button — opens a radial menu for quick app-specific shortcuts. LTT Labs testing confirmed the click latency sits comfortably within professional tolerances, with an immediate response and dampened bottom-out feel. Both buttons feel more refined than the 3S.

Flow integration

Logi Options+ supports Flow, Logitech’s cross-computer workflow system that lets you drag files between a Mac and Windows machine with the mouse. App-specific profiles let you map buttons differently for Chrome versus Figma versus Excel — a genuine productivity multiplier.

Logitech MX Master 4 Mac

The MX Master 4 works with macOS, iPadOS, and Windows — no dedicated Mac version exists, though the Graphite finish tends to match Apple hardware aesthetics better.

Bluetooth pairing

Pairing via Bluetooth is seamless on both macOS and iPadOS. The Bolt receiver (USB-C) plugs into newer MacBooks that lack USB-A ports, delivering what Logitech claims is a 2× more robust connection than the 3S’s unifying receiver.

Multi-device switching

The Easy-Switch button cycles between three paired devices — useful for users who bounce between a MacBook, an iPad, and a work Windows machine. The haptic thumb rest vibrates on device switch, confirming the change without looking.

Logitech MX Master 4 release date

The MX Master 4 was announced in 2025 as the direct successor to the 3S, with reviews appearing throughout late 2025 and into 2026. The 3S had launched in 2022 as a quieter update to the original 3.

Announcement timeline

Logitech’s upgrade cycle typically spans three to four years between generations. The 4’s arrival in 2025 followed that pattern, bringing USB-C and haptic feedback as the headline hardware changes.

Availability dates

Current purchase options include major retailers and Amazon listings. Pre-order status has been fulfilled, with standard shipping timelines applying in most regions.

Initial reviews

Early testers praised the refined click feel and haptic feedback but flagged the heavier weight as a potential issue for users accustomed to the lighter 3S. Community posts on HeyUpNow highlighted the 70-day battery life as a consistent strength across both generations.

Logitech MX Master 4 Graphite

Graphite is the flagship finish for the MX Master 4 — a muted, professional tone that pairs well with modern laptop colors and desk setups.

Design details

The hard textured plastic body replaces the soft-touch rubber of the 3S. This change improves long-term durability — rubber coatings tend to peel or become sticky over time — but some users report a less grippy surface in sweaty-hand scenarios.

Ergonomics

The ergonomic shape remains nearly identical to the 3S, with minor adjustments to the palm rest and click button geometry. The expanded palm rest offers slightly more surface area, which reviewers at RTINGS.com noted as a comfort improvement during extended use.

Build quality

Neowin’s upgrade review from the 3 to the 4 praised the matte plastic’s durability but flagged the heavier weight as a drawback for wrist strain during all-day use. The silicone grips on the sides add traction without the sticky feel of rubber.

Head-to-head comparison

Three categories, three decisive contrasts — and one area where the answer depends entirely on your setup.

The pattern is clear: the 4 prioritizes premium feel and modern connectivity, while the 3S holds advantages in weight and software independence.

Full specifications

Sixteen data points distilled from two authoritative testing sources — RTINGS.com and LTT Labs — give you the technical foundation for your buying decision.

The specification sheet confirms what hands-on testing revealed: the 4’s upgrades are incremental but meaningful for power users, while the 3S remains competitive on core metrics.

Upsides and downsides

What we know — and what we don’t

Verified facts from RTINGS.com and LTT Labs anchor the technical picture. Community-reported details from HeyUpNow and YouTube reviews fill in the user-experience gaps, though some questions remain open.

What users and reviewers say

The NEW Logitech MX Master 4 brings some quality of life changes, but if you already own the MX 3S, an upgrade may not be necessary.

— YouTube reviewer, MX Master 4 vs 3S comparison

While I quite liked the MX Master 4, especially for the extra programmable button, the wrist pain due to increased weight and accidental thumb button presses were a deal-breaker for me.

— Dan, blogger at Dans Kingdom

The actual usage profile of the Master 4 feels a little bit more premium and higher-end compared to even the 3S.

— YouTube reviewer, MX Master 4 vs 3s & 3 review

The pattern cuts both ways. Reviewers who prioritize premium click feel and haptic feedback lean toward the 4. Those who value lightweight ergonomics and software-free operation lean toward the 3S — or hold off entirely.

Related reading: Logitech MX Master 4 vs 3S comparison

Our breakdown of the MX Master 4’s haptic feedback and battery life aligns with insights from a Swedish hands-on review that praises its upgrades over the 3S.

Frequently asked questions

For power users, the MX Master 4 delivers measurable workflow improvements through haptic shortcuts and Flow integration. For anyone sensitive to mouse weight or working in locked-down IT environments, the 3S remains the more practical choice — at least until third-party workarounds for the software requirement catch up.

Buyers weighing the MX Master 4 should consider that the 9g weight increase and software dependency are real trade-offs, not minor footnotes. The haptic feedback and Action Ring justify the upgrade for users who’ll use them daily — but the 3S remains the sensible default for anyone working in restricted environments or prioritising lighter ergonomics.