I Typed 847 Emails
On This Keyboard.
Here's What
Nobody Tells You.

I've gone through four keyboards in three years.

First came a membrane board that felt like typing on wet cardboard — fingers aching by hour two, wrists complaining by hour four. Then a mechanical keyboard I genuinely loved the sound and feel of, right up until my first Zoom call with a new client. She asked, halfway through my pitch, "Is someone doing construction near you?" I started shopping for a quieter option the same afternoon.

After that, a budget wireless board — $34 on Amazon, decent reviews. It disconnected mid-sentence during a client presentation. Then did it again. In front of the same client. I returned it the next morning.

Then I bought the Logitech MX Keys S. That was November 2025. It's now February 2026. I have not seriously considered going back to anything else. Not once.

This review covers 90 days of daily use — six to eight hours a day, writing email campaigns, blog posts, strategy documents, and client reports. I'll start with the one thing that almost made me return this keyboard, because most review sites hide that part in the final paragraph after you've already clicked their affiliate link. We do things differently here.

The Thing That Almost Made Me Return It

Let's get the uncomfortable part out of the way first, because too many reviews bury it in the final paragraph hoping you've already clicked their affiliate link.

The Logitech MX Keys S has a 10-day battery life when the backlighting is on. That's it. Ten days. For a $109.99 keyboard. When I first saw this in the spec sheet, I almost closed the tab. My old $30 membrane board lasted six months on two AA batteries. How is a premium keyboard charging this often?

Here's what I found after actually using it for 90 days: it's annoying, but manageable. The proximity sensor automatically turns off the backlight when your hands move away — so if you're in meetings, on calls, or away from your desk for more than 30 seconds, the backlight isn't burning. In practice, I charged it every 11 to 14 days, not 10. And USB-C charging means the same cable as my phone. I plug it in overnight twice a month. That's it.

With the backlight completely off, Logitech claims 5 months of battery life. I haven't tested that claim because I use the backlight — but if you work in a bright office and don't need the keys lit up, this concern essentially disappears.

Now that we've got the real weaknesses on the table — let's talk about why I'm still using this keyboard three months later.

The Typing Experience — Why Marketers Are Obsessed With This Keyboard

I write somewhere between 3,000 and 5,000 words a day — email campaigns, review articles, client strategy documents. Before the MX Keys S, my wrists would start complaining around hour three. That hasn't happened once in 90 days on this keyboard. Not once.

The reason is the spherically-dished keycaps. Each key has a subtle concave scoop that cups the pad of your fingertip. It sounds like a small thing. It is not a small thing. After six hours of typing, your fingers don't feel like they've been slapping a flat surface repeatedly — because they haven't. They've been dropping into little cradles designed specifically for where your fingertips make contact.

The noise is genuinely impressive. TechGearLab measured the MX Keys S at 35 decibels average on keystrokes — among the absolute quietest wireless keyboards they tested across their entire lineup. I've taken this keyboard on client calls, into coffee shops, and used it during late-night writing sessions when my family was asleep in the next room. Nobody has ever complained about keyboard noise. That's a first for me.

The low-profile scissor switches aren't mechanical — so if you're a developer who wants the satisfying thock of a Keychron, this isn't your keyboard. But if you're writing marketing copy, email sequences, or long-form content for 4 to 8 hours a day, you want quiet, precise, and fatigue-free. That's exactly what the MX Keys S delivers.

Smart Actions — The Feature That Actually Changed How I Work

Every keyboard review mentions Smart Actions. Almost none of them explain what it actually means for a real workflow. So here's exactly how I use it:

Every morning, I need to open Gmail, my email campaign dashboard, Google Analytics, Notion, and Slack. Five tabs. Five clicks. Takes about 45 seconds while the apps load. I set a Smart Action macro on one of the function keys. Now I press one button and all five open simultaneously. I haven't clicked my morning setup manually in two months.

I also set a second Smart Action for end-of-day shutdown — one key closes all browser tabs, saves open documents, and locks the screen. What used to be a two-minute fumbling ritual is now a single keystroke. That's Smart Actions. Not a gimmick. A genuine time-saver for anyone with a repeatable daily workflow.

Feature-by-Feature Breakdown — Honest Scores

MX Keys S vs. The Competition — Honest Side-by-Side

The Complete Pros & Cons — No Spin

Should You Buy It? — Honest Yes / No

The Combo That Changes Everything — Add This Mouse

Reviewing the MX Keys S without mentioning the MX Master 3S mouse is like reviewing a laptop without mentioning the trackpad. They're designed for each other. The Logitech Flow feature — which lets you copy something on your Mac and paste it directly on your Windows PC using just the keyboard and mouse — only works when both devices are Logitech MX-series products connected via the same Bolt receiver.

I tested this for three weeks. Copying an image on my MacBook and pasting it into a Windows Canva tab on my desktop PC, without touching a USB drive or email, feels like cheating. If you're even slightly considering the MX Keys S, look at the MX Keys S Combo ($199.99 on Amazon), which includes the keyboard, MX Master 3S mouse, and a palm rest — saving you around $50 versus buying them separately.

Final Verdict — Is the Logitech MX Keys S Worth $109.99 in 2026?