Logitech Signature Slim K950 Wireless Keyboard vs Keychron B6 Pro Ultra-Slim Wireless Keyboard
Get the Logitech Signature Slim K950. Unless you want a rechargeable keyboard with a cable option for less — then the Keychron B6 Pro.
Logitech Signature Slim K950 Wireless Keyboard
A slim, extremely quiet full-size keyboard that switches between three devices, for less than the MX Keys S. No backlight and no recharging.
Keychron B6 Pro Ultra-Slim Wireless Keyboard
A cheap, slim full-size keyboard with a number pad that connects three ways: its own wireless receiver, Bluetooth or a cable. Comfortable and quiet, if plain and a bit plasticky.
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Both are slim, unlit full-size keyboards that pair with three devices. The K950 is extremely quiet and nicer to type on all day; the B6 Pro is cheaper, rechargeable and also works with a cable, but it feels plasticky and flexes a little.
- —You share a room or take calls while typing.
- —You want the nicer typing feel.
- —You don't mind changing batteries.
- —You'd rather recharge or plug in.
- —You want to spend less.
- —You don't mind a plainer build.
What verified owners report
Only reviews from checked buyers count, and every 1–3 star review is read by us. How we do this
Owners love switching between computers, tablets and phones, and find it comfortable, quiet and slim. One owner's keyboard sometimes doesn't reconnect to its receiver after a restart.
- ✓Easy switching between devices
- ✓Comfortable to type on
- ✓Quiet
None came up often enough to list.
Owners like the quiet, light typing and the looks. One owner's space bar only worked on the left half.
- ✓Quiet typing
- ✓Light keys, good for long work
- ✓Looks good
None came up often enough to list.
Key differences
Pros and cons
- +Extremely quiet, slim keys
- +Switches between three devices
- +Full size with a number pad
- −No backlight.
- −Runs on two AAA batteries, with no recharging or cable.
- −The keycaps feel a little cheap.
- −Only simple shortcuts can be set in the software.
- +Full size with a number pad for little money
- +Receiver, Bluetooth or cable
- +Comfortable, quiet keys
- −No backlight.
- −The plastic body feels cheap and flexes a little.
- −Plain looks.
For the curious
A deeper look at full specs.
Connection
Receiver or Bluetooth on the K950; the Keychron adds a USB-C cable.
Power
AAA batteries for up to 36 months against a rechargeable battery for up to about 8 months.
Technical specifications
| Signature Slim K950 | Keychron B6 Pro | |
|---|---|---|
| Layout | Full size with number pad; tilt legs for an 8° angle | Full size, 109 keys (ANSI), 17 media keys |
| Connection | Logi Bolt USB receiver (included) or Bluetooth 5.1, 10 m range | 2.4 GHz, Bluetooth 5.2 and USB-C wired |
| Polling | — | 1000 Hz on 2.4 GHz and wired, 90 Hz on Bluetooth |
| Build | — | ABS body and ABS keycaps |
| Backlight | — | None |
| Battery | 2 AAA (included), up to 36 months | 800 mAh, up to about 8 months per charge; about 2.5 hours to charge |
| Systems | — | macOS, iOS, Windows, Android, Linux |
| Software | Logi Options+ on Windows and macOS | ZMK firmware, Keychron Launcher |
| Height | — | 5.2 mm front, 14.5 mm rear; 3.2° typing angle |
| Size and weight | — | 429 × 130 mm, 623 g |
| Devices | Easy-Switch between 3; works with Logitech Flow mice | — |
| Keys | Printed for Windows, Mac and ChromeOS | — |
| Size | 433.8 × 134.8 × 23.1 mm | — |
| Weight | 685 g with batteries | — |
From the maker's spec sheet for the Signature Slim K950 (Logitech Signature Slim K950) and the Keychron B6 Pro (Keychron B6 Pro), checked October 2026. Versions sold in other countries can differ slightly.
- Is the Signature Slim K950 worth it?
- Is the Keychron B6 Pro worth it?
- Logitech MX Keys S vs Logitech MX Keys Mini
- Logitech MX Keys S vs Logitech Wave Keys
- Logitech MX Keys S vs Apple Magic Keyboard with Touch ID
- Logitech MX Keys S vs Logitech Ergo K860
- Best office keyboards
How we reached this verdict
We compared independent expert reviews with the manufacturer's specifications, then checked it's sold at a major retailer where you live. We don't test products ourselves.
Sources: RTINGS, RTINGS, Engadget, Trusted Reviews, manufacturer specifications.
Owner reports for the Signature Slim K950: 18 verified buyer ratings at Currys and Best Buy (Canada), read October 2026.
Owner reports for the Keychron B6 Pro: 10 verified buyer ratings at Rakuten (Japan), read October 2026.