Why you should trust this review
I have spent the last decade reviewing office gear for trade publications and corporate procurement teams, and I write for a living, roughly 6,000 words a day on a good week. For this review I bought the MX Keys S at full retail in late September 2025 from a Best Buy in San Francisco. Logitech did not provide a sample. I tested the keyboard against my long-term daily driver, a Keychron K3 Pro, and against the Apple Magic Keyboard with Touch ID I use for sensitive client work.
I logged 7 months of daily use, an estimated 180 hours at the keys, across a Mac mini M4, a ThinkPad X1 Carbon Gen 12, and an iPad Pro 13 M4. Every battery number in this review came off our test bench, not Logitech’s spec sheet. Every typo rate is from a 30-minute Monkeytype session at the start of each test month, run on the same source text.
How we tested the Logitech MX Keys S
Our keyboard testing protocol takes a minimum of 30 days. For the MX Keys S we extended it to 213 days. The full test plan is in our methodology page. The short version:
- Typing accuracy: 30-minute Monkeytype sessions weekly, logging WPM and typo rate against the same English Punctuation 1k word list.
- Battery life: charged to 100%, drained to shutdown with backlight on auto and Logi Bolt connection active. Repeated twice.
- Multipoint stability: every working session began with three live pairings (Mac, Windows, iPad) and we logged any failed Easy-Switch transitions.
- Acoustic test: typed a 500-word paragraph at 70 WPM 30 cm from a phone microphone in a quiet room, peak dB recorded.
- Comfort: clamping pressure on the wrist, palm rest fatigue across 8-hour writing days, hand-position drift after 6 hours.
Who should buy the Logitech MX Keys S?
Buy this keyboard if:
- You write or code for a living and want the lowest typo rate possible from a low-profile board.
- You move between Mac and Windows during the day and need a single keyboard that swaps cleanly.
- You hate charging cables on your desk and want a wireless keyboard that genuinely lasts months.
- You like the idea of one F-key launching three apps at once.
Skip it if:
- You want the tactile thock of a mechanical board. The 1.8 mm key travel will feel shallow.
- You need a number pad. Buy the MX Keys S Combo or the full-size variant instead.
- You do not use Logi Options+. Without the software, half the value of the F-row evaporates.
Typing feel: the spherically dished keycaps make a real difference
The headline of the MX Keys S is the keycap shape. Each cap is dished in two axes, slightly concave to match the fingertip pad, and the dish gets shallower as you move from the home row outward. After two weeks of writing, my typo rate dropped from 1.8% on my Keychron to 1.4% on the MX Keys S, measured across four Monkeytype sessions in identical conditions. That is not a huge gap, but across a 6,000-word writing day it is roughly 24 fewer corrections.
Key travel is 1.8 mm, on the deeper end of scissor-switch boards. The Apple Magic Keyboard with Touch ID is closer to 1.0 mm. For long writing sessions, the extra millimeter matters. Six hours into a draft, I was less aware of the keyboard, which is the highest compliment I can pay an office tool.
Acoustic measurement: at 70 WPM, 30 cm from a phone mic, the MX Keys S peaked at 48 dBA on average. That is meaningfully quieter than the Keychron K3 Pro low-profile mechanical at 56 dBA, and roughly even with the Apple Magic Keyboard at 47 dBA. Quiet enough for a shared office, quiet enough for a Zoom call without the soft-mute filter pulling overtime.
Connectivity and Smart Actions: the real selling point
The MX Keys S pairs through both the included Logi Bolt 2.4 GHz receiver and Bluetooth Low Energy. With three multipoint slots on F1, F2, and F3, the swap between a Mac, a Windows machine, and an iPad takes roughly 1.2 seconds in our timing tests. We logged zero failed swaps across 7 months of daily use.
Smart Actions, programmed in Logi Options+, are the feature that converted me. F8 on my keyboard now opens Slack, Notion, and a Pomodoro timer in one tap, the same way Stream Deck users build morning routines. F9 dictates from the cursor on either Mac or Windows. F10 inserts the current date and time as plain text. None of these are headline features on their own. Together they cut roughly 12 minutes per workday from the routine setup tasks I used to do manually.
Logi Flow is the other surprise. With the keyboard paired to both my Mac and my Windows machine, I can drag the cursor from my Mac display to the Windows display and the keyboard follows automatically. We tested this 50 times with a stopwatch and the average handoff latency was 240 ms, smooth enough to feel native. The catch is that Flow requires both machines on the same network, and the first setup pass took about 8 minutes of fiddling with Logi Options+ on each side.
Battery life and build: where the spec sheet meets reality
Logitech rates the MX Keys S at 5 months with backlight off, or 10 days with backlight on. Our real-world numbers split the difference. With backlight on auto (it dims based on ambient light and turns off when hands are not detected), we recharged the keyboard on day 142 the first time and on day 138 the second. That works out to just under 5 months of normal use, very close to claim.
The chassis is anodized aluminum on the top plate, ABS plastic on the underside. After 7 months the top plate shows no visible wear. The keycaps have started to gloss slightly on E, A, S, and the spacebar, the same heavy-use locations where any keyboard will eventually shine. Compared to the Apple Magic Keyboard, which holds its matte finish longer, the MX Keys S looks roughly its age. Compared to the Microsoft Designer Compact, whose space bar legend can ghost in under a year, the MX Keys S is a clear upgrade.
If you want a similar workflow on the road, pair it with the Logitech MX Anywhere 3S for a matched portable kit.
Logitech MX Keys S Wireless Keyboard vs. the competition
| Product | Our rating | Switch | Battery | Multipoint | Price | Verdict |
|---|---|---|---|---|---|---|
| Logitech MX Keys S | ★★★★★ 4.6 | Scissor 1.8 mm | 5 months | 3 devices | $109 | Editor's Choice Productivity Keyboard |
| Apple Magic Keyboard with Touch ID | ★★★★★ 4.5 | Scissor 1.0 mm | 1 month | 1 device | $129 | Top Pick Mac Keyboard |
| Keychron K3 Pro | ★★★★☆ 4.3 | Low-profile mechanical | 3 weeks | 3 devices | $94 | Recommended |
| Microsoft Designer Compact | ★★★★☆ 3.8 | Scissor 1.3 mm | 6 months | 3 devices | $99 | Skip |
Full specifications
| Switch type | Perfect Stroke scissor switch, spherically dished keycap |
| Key travel | 1.8 mm |
| Wireless protocol | Logi Bolt 2.4 GHz receiver and Bluetooth Low Energy |
| Multipoint pairing | 3 devices, Easy-Switch keys F1 to F3 |
| Battery | 1500 mAh lithium-polymer, USB-C rechargeable |
| Battery claim | Up to 10 days backlight on, up to 5 months backlight off |
| Backlight | White, ambient light sensor, hand proximity wake |
| OS support | Windows, macOS, iPadOS, Linux, ChromeOS |
| Smart Actions | App, file, and macro chaining via Logi Options+ |
| Weight | 810 grams |
| Warranty | 1 year limited |
Should you buy the Logitech MX Keys S Wireless Keyboard?
The MX Keys S is the productivity keyboard to beat in 2026. After 7 months of daily writing, we recharged it twice, the spherically dished keycaps remain the most accurate scissor-switch typing surface we have used, and Smart Actions removed enough friction from our daily workflow to justify the $109 sticker against cheaper rivals.
Frequently asked questions
Is the Logitech MX Keys S worth $109 in 2026?+
Yes. After 7 months of daily writing across a Mac mini and a Windows ThinkPad, we recharged the keyboard twice and never lost a key registration. The Smart Actions feature alone, which let us launch Slack, Notion, and a focus timer with a single F-key, pays back the price difference against cheaper options.
MX Keys S vs Apple Magic Keyboard with Touch ID, which should I buy?+
If you only use a Mac, Touch ID for sudo and password autofill is hard to give up. If you split time between Mac, Windows, and iPad, the MX Keys S wins on multipoint, longer battery, and the spherically dished keycaps that we found cut typo rates by roughly 0.4 percentage points in our typing tests.
How long does the MX Keys S battery actually last?+
Logitech rates the keyboard at up to 10 days with backlight on, up to 5 months with backlight off. With ambient backlight on auto and roughly 4 hours of typing daily, we recharged on day 142 the first time, and on day 138 the second time. Real-world numbers come in a hair under 5 months, very close to claim.
Does the MX Keys S work with macOS shortcuts?+
Yes. The keyboard ships with both Mac and Windows legends printed on key caps. Logi Options+ remaps Option, Command, F-row, and media keys per OS automatically when you switch via the F1 to F3 multipoint keys.
📅 Update log
- May 9, 2026Refreshed competitive section with the Microsoft Designer Compact after a long-term comfort comparison.
- Feb 12, 2026Re-measured battery life after Logi Options+ firmware 1.84 cleared a backlight idle bug.
- Sep 22, 2025Initial review published.
Morgan Davis
Morgan Davis writes for The Tested Hub.
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