Comparison guide
Logitech MX Master 3S vs Logitech MX Master 4: which should you choose?
Logitech MX Master 3S and Logitech MX Master 4 compared under one framework. Decision axes: Compare sensor tracking and click latency, shape and fatigue for the hand, movement-appropriate weight, battery life, connection switching, button and software utility, and price. Includes price context and category-specific tradeoffs.
Published: 2026-08-16 · Updated: 2026-08-16
Mice verdict
Upgrade for specific needs. The products share a category but prioritize different strengths. The figures below use the same weighting model and stored representative configurations; confirm the configuration and price on the merchant page before buying.
- Logitech MX Master 3S: The right-handed productivity standard with an 8K sensor, quiet clicks, MagSpeed, and a thumb wheel.
- Logitech MX Master 4: The latest MX productivity mouse with a haptic panel, Actions Ring, stronger connectivity, and 8K Darkfield tracking.
- Upgrade recommendation: 58 / 100
- Data completeness: 98%
Choosing between Logitech MX Master 3S and Logitech MX Master 4 starts with the real use case and the problem to solve, not with which product is newer. Use context: Define the longest use block and required button count across documents and browsing, design or video work, large-display navigation, FPS or MOBA play, and travel. Decision axes: Compare sensor tracking and click latency, shape and fatigue for the hand, movement-appropriate weight, battery life, connection switching, button and software utility, and price. This guide applies one calculation model to stored representative configurations while keeping the category-specific decision order visible.
Core specifications on one baseline
| Item | Logitech MX Master 3S | Logitech MX Master 4 | Delta |
|---|---|---|---|
| Tracking precision | 93 score | 98 score | +5.4% |
| Input latency | 78 score | 82 score | +5.1% |
| Ergonomics | 98 score | 99 score | +1% |
| Lightness | 52 score | 52 score | Same |
| Battery | 96 score | 96 score | Same |
| Connectivity | 96 score | 100 score | +4.2% |
| Value | 90 score | 86 score | -4.4% |
| Sensor | Darkfield high precision | Darkfield high precision | Same |
| Maximum sensitivity | 8000 DPI | 8000 DPI | Same |
| Polling rate | 125 Hz | 125 Hz | Same |
| weight_g | 141 g | 150 g | +6.4% |
| Buttons | 7 | 8 | +14.3% |
| Battery life | 1680 h | 1680 h | Same |
| Wireless modes | Bluetooth LE, Logi Bolt (3 devices) | Bluetooth LE, Logi Bolt USB-C | 0% |
| Charging | USB-C; 1 minute for about 3 hours | USB-C; 1 minute for up to 3 hours | 0% |
| Dimensions | 124.9 x 84.3 x 51 mm | 128.2 x 88.4 x 50.8 mm | 0% |
| Chipset | Not applicable | Not applicable | Same |
| Color | Graphite | Graphite | Same |
| Lineup | logitech-mx-mouse | logitech-mx-mouse | Same |
| Region | KR | KR | Same |
| Haptic controls | — | Customizable Haptic Sense Panel and Actions Ring | Not comparable |
| Model code | M-R0077 | MR0118 | Different |
Tracking precision
The tracking precision score is 93.0 for Logitech MX Master 3S and 98.0 for Logitech MX Master 4. Logitech MX Master 4 leads this dimension. It is a relative index combining sensor tracking in slow precision and fast movement, angle snapping or acceleration, DPI steps, and surface compatibility on one baseline. Read the underlying specification rows, source completeness, and exact selling configuration before treating the lead as decisive. Similar averages can hide different weak points, so a small point gap matters less than whether the product removes a concrete problem under your normal usage conditions.
Input latency
The input latency score is 78.0 for Logitech MX Master 3S and 82.0 for Logitech MX Master 4. Logitech MX Master 4 leads this dimension. It is a relative index combining click and motion-to-screen delay, polling stability, and differences between wired and wireless modes on one baseline. Read the underlying specification rows, source completeness, and exact selling configuration before treating the lead as decisive. Similar averages can hide different weak points, so a small point gap matters less than whether the product removes a concrete problem under your normal usage conditions.
Ergonomics
The ergonomics score is 98.0 for Logitech MX Master 3S and 99.0 for Logitech MX Master 4. Logitech MX Master 4 leads this dimension. It is a relative index combining shape fit for hand size and grip, lateral support, button reach, and long-session wrist and finger fatigue on one baseline. Read the underlying specification rows, source completeness, and exact selling configuration before treating the lead as decisive. Similar averages can hide different weak points, so a small point gap matters less than whether the product removes a concrete problem under your normal usage conditions.
Lightness
The lightness score is 52.0 for Logitech MX Master 3S and 52.0 for Logitech MX Master 4. The two products are level here. It is a relative index combining fast-movement and carry burden including not only mass but balance, cable drag, and skate friction on one baseline. Read the underlying specification rows, source completeness, and exact selling configuration before treating the lead as decisive. Similar averages can hide different weak points, so a small point gap matters less than whether the product removes a concrete problem under your normal usage conditions.
Battery
The battery score is 96.0 for Logitech MX Master 3S and 96.0 for Logitech MX Master 4. The two products are level here. It is a relative index combining real runtime by polling and lighting mode, usability while charging, fast charging, and long-term battery aging on one baseline. Read the underlying specification rows, source completeness, and exact selling configuration before treating the lead as decisive. Similar averages can hide different weak points, so a small point gap matters less than whether the product removes a concrete problem under your normal usage conditions.
Connectivity
The connectivity score is 96.0 for Logitech MX Master 3S and 100.0 for Logitech MX Master 4. Logitech MX Master 4 leads this dimension. It is a relative index combining Bluetooth, dedicated receiver and wired support, multi-device switching, receiver storage, congestion, and wake reliability on one baseline. Read the underlying specification rows, source completeness, and exact selling configuration before treating the lead as decisive. Similar averages can hide different weak points, so a small point gap matters less than whether the product removes a concrete problem under your normal usage conditions.
Value
The value score is 90.0 for Logitech MX Master 3S and 86.0 for Logitech MX Master 4. Logitech MX Master 3S leads this dimension. It is a relative index combining value at the current price after sensor, shape, buttons, software, battery, warranty, and required dock, receiver or skate costs on one baseline. Read the underlying specification rows, source completeness, and exact selling configuration before treating the lead as decisive. Similar averages can hide different weak points, so a small point gap matters less than whether the product removes a concrete problem under your normal usage conditions.
Who should choose Logitech MX Master 3S
Logitech MX Master 3S is the stronger fit when its leading dimensions match your primary use. Configuration checks: Check hand length and width, grip style, handed shape, sensor and maximum DPI, polling rate, weight and balance, button count, wired, 2.4 GHz and Bluetooth modes, battery and charging, and OS software support. Then ask whether the product removes a concrete problem with the device you already own. If the gap is small and there is no real pain point, waiting for a price drop or a change in workload can be more rational than upgrading for novelty alone.
Who should choose Logitech MX Master 4
Logitech MX Master 4 is the better fit when more of its strengths overlap your priorities and its weaker dimensions remain acceptable. Switching costs: Account for adapting grip and sensitivity, rebuilding per-game and per-app DPI or button profiles, and buying a mouse pad, skates, grip tape, dedicated receiver, charging cable or dock, and replacement battery. A higher total can still deliver lower practical value when that burden is large, so compare the score lead and switching cost on the same baseline.
How to read price and purchase availability
Neither product currently has an approved purchase link whose product name and configuration match the catalog, so no merchant link is shown. AsKrs does not guess a destination; this guide provides specifications and decision criteria until an exact listing is verified.
- Logitech MX Master 3S · No verified purchase link currently available
- Logitech MX Master 4 · No verified purchase link currently available
Final decision checklist
- Use context: Define the longest use block and required button count across documents and browsing, design or video work, large-display navigation, FPS or MOBA play, and travel.
- Configuration checks: Check hand length and width, grip style, handed shape, sensor and maximum DPI, polling rate, weight and balance, button count, wired, 2.4 GHz and Bluetooth modes, battery and charging, and OS software support.
- Switching costs: Account for adapting grip and sensitivity, rebuilding per-game and per-app DPI or button profiles, and buying a mouse pad, skates, grip tape, dedicated receiver, charging cable or dock, and replacement battery.
- When the score gap is small, identify the concrete problem the change will solve.
- Recheck the seller, delivery, return terms, condition, and current price at checkout.
Scope and limits of this comparison
This comparison is a structured decision aid built from published specifications and stored representative configurations. Scope and limits: Grip fit varies with hand size and posture; perceived tracking depends on pad surface, DPI, polling rate, and radio congestion, while switch life and battery aging are difficult to establish from short tests. The scores are relative indicators for setting priorities within one category, not an absolute quality ranking. When a new configuration or verified specification becomes available, the catalog and its comparison pages are regenerated together.
Open the full configuration-level comparison and upgrade score