Customer Ratings & Reviews

I switched from the Razer Basilisk V3 Pro to this mouse looking for an ergonomic improvement to reduce wrist fatigue and this mouse does not disappoint, the addition of the side scroll button and the haptic button have been a game changer for me in terms of productivity and saving time during work hours. The battery is a huge jump compared to the Basilisk's battery (taking into account that this mouse does not have RGB like the Basilisk) if what you are looking for is to optimize your productivity and more importantly take care of the health of your wrist, this is the way to go.

What’s Great (Strengths & Features) • Excellent Ergonomics & Build • Very comfortable sculpted design for right-handed users; great for long work sessions. • Premium build: smooth feet, sturdy feel, improved coating that lasts longer. • Quiet-click buttons make it ideal for office or shared spaces. • High Precision & Smart Scrolling • 8,000 DPI sensor tracks on almost any surface — even glass. • MagSpeed wheel switches between precise steps and fast free-spin scrolling. • Multiple customizable buttons + horizontal thumb wheel → huge productivity boost. • New Haptic Feedback + Action Ring • Built-in haptics give subtle vibration cues for actions, scrolls & shortcuts. • Fully customizable or can be turned off. • “Action Ring” overlay lets you pull up app-specific shortcuts with tactile confirmation. • Strong, reliable wireless performance + USB-C receiver. • Excellent battery life (up to ~70 days). • Great for Productivity & Multi-Device Workflows • Perfect for coding, editing, spreadsheets, design, and multitasking. • Smooth device switching (up to 3 devices) via Easy-Switch or Action Ring. • Broad Compatibility • Works with Windows, macOS, Linux, ChromeOS, and even iPadOS via Bluetooth. • Supports Bluetooth LE and the included USB-C Logi Bolt receiver. • Ideal for people using PCs, Macs, tablets, and modern USB-C laptops. What’s Not Great (Cons & Limitations) • Size & Handedness • Large, right-handed shape — not ideal for small hands or left-handed users. • Heavier than travel mice; meant for desktop use, not portability. • Haptics Are Hit-or-Miss • Limited app support so far. • Many users may find it cool but not essential. • Not for Gaming • 125 Hz polling rate feels slow for fast/competitive games. • Some note slightly slower response than older MX models under fast movement. • Missing Convenience Features • No onboard memory for profiles — settings tied to software. • No storage slot for the Bolt receiver (easy to lose during travel). • Premium Price • ~$120–$130 is expensive. • Upgrade from MX Master 3S is noticeable but not huge unless you want haptics & USB-C dongle. Who Should Buy It • Professionals who work long hours on a computer. • Developers, editors, designers, analysts, and heavy productivity users. • People who work across multiple devices (PC, Mac, iPad, laptop). • Anyone who wants comfort + tons of customization. Who Should Skip It • Left-handed or small-handed users. • Gamers looking for high polling rates. • Travelers needing a compact mouse. • Users who don’t care about shortcuts, haptics, or customization.

Excellent ergonomic mouse. It is worth it, and fun to use

Great mouse for work. The build feels like a durable and quality product. It charges quickly and so far has performed perfectly straight out of the box without the additional software. I especially love the ability to scroll slowly or to automatically switch to a very fast scroll based on how much pressure used to spin the scroll wheel.

The battery life is insanely good, I can adjust the controls to how I want them, and it connects almost instantly to my computer. Highly recommend in general, but mainly anyone who needs to mouse for editing softwares like DaVinci Resolve or After Effects.

This mouse is absolutely amazing. love the ergonomics the pop up menu some extra buttons etc. perfect!

I wasn't sure what to expect with this mouse coming from an MX 3S, but the difference was immediate. This new Master mouse has a different feel to it physically. It could be the different materials it uses, it has a smooth, soft feel which makes it pleasant to use. The movement of the mouse also feels nice; overall it's a pleasant experience. The biggest addition to this new mouse is the haptic feedback and the quick actions button. To be honest, I don't feel of use either as much as I would like and there are two reasons for this. Let's start with the haptic feedback, there aren't many programs that support this feature yet. It's limited to about 4-5 programs such as Zoom, Photoshop, Lightroom and maybe a few more. It would be a good idea to have haptic feedback when adding volume with the sidewheel or closing, minimizing windows, or other miscellaneous actions, but that is not the case. As for the quick actions, it has some solid options such as a quick link to Windows Explorer, Logi+ Options, and even a link to AI chatbots (it opens your default browser to the selected AI). The option to customize the quick actions would be a good idea. Although these two features are lacking, it's still a very nice mouse that performs incredibly well, and a worthy upgrade from the MX Master 3S.

Great product with options to configure sub menus and applications with the buttons.

Super versatile, a lot of options and creativity. The way it fits in the hand isn’t the exact same way as the last Logitech I had overall very good I would recommend.

Best possible upgrade from the 3S. I've had every generation of MX Master and I'm so impressed with this one. The haptics, the new texture, the satisfying clicks, make me happy to mouse around every day.

After trying numerous mice of different styles, I have found the one for me. It fits my hand well and is quite comfortable to use for long use.

Wow. I've had a couple different MX Master devices and this new one is the best yet. Fast and smooth with so many programable options. Thank you Logitech.

Excellent ergonomics, nice haptic feedback that doesnt get in your way.

The MX master 4 takes productivity to the next level.

nice mouse . good easy to use little heavy . but ok

Love the mouse, very smooth and works like a dream

Miss the higher arch of the 3s, otherwise more stain resistant.

Although I like its productive features of this mouse which is you can customize a lot on this mouse but I don’t like the fact that its polling rate is about mere 100 hz. I can’t personally use this mouse because it’s just too much delay even just for a normal use. Besides I don’t even play games with it.

Heavy and hard to control. The non slip pads on both sides re very slippery. Returned it