A Review of the Logitech MX Master 4 and Wave Keys to Save Your Wrists From Yourself
BY SOPHIE CHUNG
Tested for 5 weeks after nearly diagnosing myself with carpal tunnel.
26 AUG - 2026
Ergonomics is the ultimate productivity hack.
Nothing says "I have my life together" quite like a fully upgraded desk setup. Nothing says "I do not have my life together" like editing videos on a MacBook trackpad, aggressively mashing down my fingers, for years, without once stopping to ask why your wrist feels like it's been in a minor car accident.
Somewhere along the way, my job had quietly shifted from traditional editor to full-blown content creator, because apparently that's just the multi-hyphenate tax everyone pays now. And I was rawdogging it with no mouse or external keyboard, just a trackpad to the point that it now has a patina - clearly, not built to survive my new workload.
Scrubbing timelines, dragging keyframes, zooming in and out a thousand times an hour - my wrist started aching in a very specific way, and my fingers were sore from how hard I pressed just to get a click to register. I’d always get told off that I was crushing the imaginary egg when I played piano - so you can imagine how forceful my clicking was.
Eventually, after years of working with no ergonomic system, self-preservation won out over denial and I went full research-mode: deep-diving into geeky reviews, comparing spec sheets, and interrogating a documentary video editor friend who lives and breathes this stuff on a whole different level. Logitech seems to have be the big dog in this market so I requested to trial the MX Master 4 (big boss of the mouse category) and the Wave Keys to match.
I also finally admitted the trackpad wasn't my only crime scene. My laptop had actually been perched up on a stand this whole time, which in theory is the correct move for posture - except when your laptop is raised and your keyboard and trackpad are raised right along with it, you end up reaching up and out to type and click, which is its own quiet way of wrecking your wrists. So I was stuck in the worst combo possible: wrists compromised from typing on an elevated trackpad, and still hunching forward anyway because the screen wasn't quite at eye level.
Reflecting back at my previous system, I hate myself for being such an idiot and for how long I let this go on.
And now for the thorough review you never knew your wrists needed.
my updated work station
MX Master 4
This is Logitech's latest flagship productivity mouse, and it's clearly built for people like me who live in timelines. It's on the heavier side at about 150g, which sounded like a con on paper but in practice just makes it feel planted - my hand isn't doing any of the stabilizing work anymore, the mouse is.
The scroll wheel is the star of the show for editing work. It's Logitech's MagSpeed wheel, and you can flick it between a notched "line by line" mode for precise scrubbing and a free-spin mode for flying through a long timeline or project bin. Being able to switch that with one click under my index finger, without opening a menu, made a bigger difference to my day-to-day than I expected.
New on this generation is haptic feedback and something called the Actions Ring - a customisable radial menu that pops up at your cursor so you can trigger app shortcuts without leaving the mouse like screenshotting, play/pause, open a finder folder or even open up an LLM swiftly like Gemini, MS Copilot, Perplexity and Chat GPT, etc.,
My most used button is probably the gestures button (top slim button on the side) - I’ve set it to window navigation so that I can go straight to mission control and switch between desktops.
Battery life is rated up to 70 days per charge, and it charges over USB-C, so it's not going to die on me mid-export like some wireless mice do. It runs about $120, which isn't cheap, but coming from an aching trackpad, it felt worth it within the first couple of days.
Most importantly for my actual problem: my hand rests into the shape of it instead of hovering flat and gripping like it did on the trackpad. That alone took a huge amount of tension out of my fingers.
They're the upgrade you need to keep your hands out of a physio's office.
Wave Keys
It's got that signature curved, wave-shaped key layout with a built-in cushioned wrist rest, so your hands sit in a more natural, slightly turned-out position instead of flat and parallel like a standard keyboard forces you into.
It also has a full number pad, which shouldn't feel like a luxury but does when half the "ergonomic" keyboards on the market chop it off to look sleeker. Handy for anything involving spreadsheets, invoicing, or just typing numbers without reaching up to the row above your letters every time.
Wireless over Bluetooth or Logitech's Bolt receiver, and it's genuinely affordable as ergonomic gear goes, sitting around $60.
Wave Keys, $169.95
did it actually fix things?
Yes. Genuinely, yes. The wrist pain that had me spiralling and the finger soreness is gone because I'm simply not doing that motion anymore. Getting my hands onto tools actually shaped for hands made an immediate, obvious difference.
And the real unlock was decoupling my hands from my screen height entirely - the laptop can stay up on its stand where it's good for my neck, while the mouse and keyboard sit down at a proper level where they're good for my wrists. No more picking which body part gets to suffer.
If you spend long stretches of your day on a laptop with no external setup - editing, designing, existing - stop doing what I did and wait until your wrist files a complaint. The MX Master 4 and Wave Keys aren't a flashy upgrade. They're the upgrade you need to keep your hands out of a physio's office. 10/10, would recommend to literally anyone whose job requires a computer.
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