🖱️ Logitech MX Master 4 vs 3S: Is the Upgrade Worth It in 2026?
Updated: Nov 2
If you're comparing the Logitech MX Master 4 vs 3S, here's the answer: the 4 is the better new buy when prices are close, while the 3S is still the smarter value on sale. I've owned and used every MX Master generation from the 2S through the 4, and the 3S is still the mouse on my desk even after trying the newer model.
My price rule of thumb: I’d lean toward the MX Master 4 if it is within about $25 of the 3S and I want its haptics. At around $30 less, the 3S becomes the better value for ordinary desk work. These are decision thresholds, not current prices. If you already like your 3S, keep it.
This article is the focused two-mouse decision. If you are also considering older generations, see my full MX Master 4 vs 3S vs 3 vs 2S comparison.
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⚡ Quick Verdict: MX Master 4 vs 3S
Buy the MX Master 4 if you want haptic feedback and revised thumb controls, especially when its price is close to the 3S. Check the exact package if you need a USB-C receiver.
Buy the MX Master 3S if it is meaningfully cheaper and you mainly want quiet clicks, MagSpeed scrolling and comfortable desk use. Actions Ring is available on the 3S too.
Already own a 3S: do not upgrade just because the 4 exists. The new features are useful, but this is refinement—not a night-and-day jump.
Already own a 3S? Try Actions Ring before upgrading. Logitech makes this shortcut menu available to other supported MX devices too. The 4 adds haptic hardware.
📊 MX Master 4 vs 3S Comparison
Sensor and scrolling
Both: Darkfield tracking up to 8,000 DPI and a MagSpeed scroll wheel.
Quiet clicks
Both: quiet primary clicks. This is not an exclusive upgrade on the 4.
Controls and Actions Ring
MX Master 4: Haptic Sense Panel and haptic feedback. MX Master 3S: traditional gesture button, without haptic hardware. Both: Actions Ring through supported Logi Options+ setups.
Connection and included receiver
Both: Bluetooth and Logi Bolt support. Standard MX Master 4: USB-C receiver. MX Master 3S: check whether the chosen edition includes a receiver and which connector it uses.
Battery and charging
Both: Logitech rates battery life at up to 70 days, depending on use and settings. Both charge by USB-C. These are manufacturer ratings, not my timed battery tests.
Weight
MX Master 4: about 150 g. MX Master 3S: about 141 g, according to Logitech.
Best fit
MX Master 4: buyers who want haptics and revised controls. MX Master 3S: value buyers and happy current owners.
🔍 MX Master 4 vs 3S: What Actually Changed?
The 4 builds on the 3S with haptic feedback, revised controls and wireless hardware. The useful question is which of those changes would matter at your desk.
Both mice still use high-precision Darkfield tracking up to 8,000 DPI, both keep the excellent MagSpeed wheel, both have quiet primary clicks, and both can switch between multiple devices. If your job is mostly email, spreadsheets, browser tabs, PowerPoint, and Teams, the basic pointing-and-scrolling experience is much closer than the model numbers suggest.
1. Haptic hardware, with Actions Ring on both
The MX Master 4’s Haptic Sense Panel adds tactile feedback for supported actions. Actions Ring is different: it is an on-screen shortcut menu in Logi Options+, and it is available on other supported MX devices, including the 3S.
Before replacing a 3S, update Logi Options+ and try Actions Ring with the shortcuts you use most. Buy the 4 for the haptic hardware and controls you want, rather than for a software feature your current mouse can already use.
Checked October 2026 against Logitech’s Actions Ring guidance, MX Master 4 specifications and MX Master 3S specifications. Specifications and battery ratings are manufacturer claims; the recommendations are my buying judgment.
2. Better connectivity and a USB-C receiver
Logitech advertises improved wireless connectivity for the 4; I have not measured a connection-strength improvement. The standard MX Master 4 package includes a USB-C Logi Bolt receiver. Check the exact listing: Mac, Bluetooth and other editions can differ in what comes in the box.
3. Refined materials and shape
The 4 keeps the familiar right-handed MX Master layout, with revised controls and materials. It is also heavier: Logitech lists about 150 g for the 4 and 141 g for the 3S. If you already like the 3S in your hand, a newer design alone is not a reason to switch.
🚀 Where the MX Master 4 Is Better
Haptic feedback can give tactile confirmation for supported actions.
The Haptic Sense Panel offers a different way to trigger and use shortcuts.
The standard package’s USB-C Logi Bolt receiver can suit a USB-C laptop.
Revised wireless hardware is a manufacturer-listed change, not a range improvement I have independently measured.
For a first purchase, I’d consider paying a small premium for the 4 if its haptics or controls appeal to me. If those features would go unused, saving money on the 3S still makes sense. Being newer does not guarantee a longer usable life.
💰 Where the MX Master 3S Is Still the Better Value
The MX Master 3S did not suddenly become a bad mouse when the 4 launched. It remains quiet, precise, comfortable, and exceptionally good for long workdays. More importantly, Logitech did not double the sensor resolution or radically change the scroll wheel or battery life on the new model.
Choosing the 3S gives up the 4’s haptic hardware and revised controls, not Actions Ring. Both can use that software feature through supported Logi Options+ setups. Compare the receiver included in each exact listing rather than assuming every edition comes with the same one.
If you are building a full desk setup, my best keyboard and mouse combinations guide shows where the MX Master fits with the keyboards I actually recommend.
🔄 Should MX Master 3S Owners Upgrade?
For most people: no. If your 3S works properly, it already gives you the best parts of the MX Master formula. The sensor, quiet clicks, MagSpeed wheel, multi-device workflow, and battery life are still competitive.
Upgrade only if the 4’s haptic feedback or physical controls solve a problem for you, or your 3S needs replacement. Try the shared Actions Ring feature on your 3S first.
That is different from upgrading from a 2S or 3, where the accumulated improvements are much easier to feel. The 3S-to-4 move is a luxury upgrade, not a necessary one.
✅ Who Should Buy the MX Master 4?
You are buying your first MX Master and want haptic feedback.
The 4 is close enough in price that you would pay the difference for its hardware changes.
You prefer its controls after comparing the feel or checking return terms.
You want the USB-C receiver included with the standard package.
👍 Who Should Buy the MX Master 3S?
You find the 3S meaningfully cheaper than the 4.
You want quiet clicks and MagSpeed scrolling for everyday desk work.
You already own a 3S that works well and feels comfortable.
You want to try Actions Ring without replacing your mouse.
⚠️ Honest Downsides to Know
MX Master 4 downsides
The 4 is heavier, and a price premium is hard to justify if you do not want haptic feedback. Getting value from its configurable controls takes setup and compatible software. Check your work computer’s app-installation rules before buying for those features.
MX Master 3S downsides
The 3S lacks the 4’s haptic hardware and revised controls. Receiver inclusion varies by edition, so a low sticker price may not include every accessory you want. Compare the total cost and the features you will actually use.
❓ MX Master 4 vs 3S FAQ
Is the MX Master 4 worth it over the 3S?
It can be worth a small premium if you want haptic feedback and the 4’s revised controls. Both offer quiet clicks, MagSpeed scrolling and Actions Ring support through compatible software. For routine desk work, a discounted 3S remains a strong choice.
Is the MX Master 3S still worth buying in 2026?
Absolutely. It still has an 8,000-DPI Darkfield sensor, quiet clicks, MagSpeed scrolling, multi-device support, and strong battery life. Its biggest advantage in 2026 is price.
Should I upgrade from MX Master 3S to MX Master 4?
Usually not if your 3S works well and feels comfortable. Try Actions Ring on it first. Upgrade for the 4’s haptic hardware or a specific control you want, not because you think the shortcut software is exclusive.
Does Actions Ring work on the MX Master 3S?
Yes. Actions Ring is available to supported MX devices through Logi Options+. Update to the latest version and check your operating system and app compatibility. The 3S does not gain the 4’s haptic hardware through that update.
Do the MX Master 4 and 3S use the same sensor resolution?
Both support Darkfield tracking up to 8,000 DPI, so sensor resolution is not the reason to choose the 4. The meaningful differences are controls, haptics, connectivity, materials, and price.
Which is better for office work, MX Master 4 or 3S?
Both suit office work. I would choose by the actual price gap, comfort and whether I would use the 4’s haptics. If your workplace blocks Logitech software, check which features remain available before paying for customization.
🏁 Final Verdict: MX Master 4 vs 3S
My choice: I’d pay a small premium for the MX Master 4 if I wanted its haptic feedback and revised controls. Around $25 is my rule of thumb, not a current price quote or a reason everyone should upgrade.
If the 3S is around $30 cheaper, I’d choose it for ordinary desk work. Compare the exact packages using the Amazon links below. Already own a comfortable, working 3S? Keep it and try the available software features first.
Before ordering on Amazon, confirm the exact model, condition, seller, return terms and included receiver. Compare an individual mouse with another individual mouse; keyboard combos and multipacks can make the price comparison misleading.
For more desk upgrades that are actually worth the money, see my work-from-home gear guide, then browse Shop my Amazon storefront for the short list of gear that actually earned a spot.
Buy better once. Don’t buy cheap twice.
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