Logitech Signature K650 Wireless Keyboard vs Logitech MX Keys S Wireless Keyboard
Get the Logitech MX Keys S. Unless you want to spend about half as much and don't need a backlight — then the Signature K650.
Logitech Signature K650 Wireless Keyboard
A cheap, quiet full-size keyboard with a number pad, a built-in palm rest and handy shortcut keys. No backlight, and one device at a time.
Logitech MX Keys S Wireless Keyboard
The best keyboard for most desks: lovely, quiet low-profile keys, a solid build, a backlight that wakes as your hands get close, and three devices at the press of a key.
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The MX Keys S has lovelier, more precise keys, a backlight that wakes as your hands approach, a rechargeable battery and three devices. The K650 is cheaper, quiet and comes with a palm rest and full number pad, but no backlight and one device at a time.
- —You want a cheap full-size keyboard for one computer.
- —You don't type in the dark.
- —You never want to charge a keyboard.
- —You type all day and want the best feel.
- —You work in dim light.
- —You switch between computers.
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 mostly find it pleasant to type on and easy to connect. The complaints are a layout missing keys some need, one that arrived without its receiver and one that didn't work.
- ✓Pleasant to type on
- ✓Easy to connect, reliable wireless
- ✓Solid and stable
None came up often enough to list.
Owners love the smooth key feel, the solid, weighty build and the backlight that comes on as their hands approach. The main complaint is keys that stick, squeak or come loose, followed by a backlight that makes the labels hard to read.
- ✓Smooth, comfortable keys
- ✓Solid, weighty build
- ✓Backlight that wakes as your hands approach
- −Keys stick, squeak or come loose
- −Backlit labels hard to read, or backlight annoyances
Key differences
Pros and cons
- +Quiet keys and a full number pad
- +Built-in palm rest
- +Lots of shortcut keys, Mac and Windows
- −No backlight.
- −Pairs with one device at a time over Bluetooth.
- −The keys can feel a little squishy.
- −The palm rest is part of the keyboard and doesn't add much comfort.
- +Lovely, quiet low-profile keys
- +Backlight that wakes as your hands approach
- +Switches between three devices
- −About 10 days per charge with the backlight on; months with it off.
- −Too much delay for competitive gaming.
- −Big and heavy to carry about.
For the curious
A deeper look at full specs.
Power
Batteries lasting up to 36 months on the K650; rechargeable on the MX Keys S, up to 10 days with backlight.
Backlight
Only the MX Keys S has one.
Devices
One at a time on the K650; three on the MX Keys S.
Technical specifications
| Signature K650 | Logitech MX Keys S | |
|---|---|---|
| Layout | Full size with number pad and built-in palm rest | Full size with number pad |
| Keys | Quiet membrane keys; no backlight | — |
| Connection | Logi Bolt USB receiver or Bluetooth Low Energy 5.1, 10 m range; one device at a time | Bluetooth or Logi Bolt receiver; up to 3 devices |
| Battery life | Up to 36 months | — |
| Spills | Survives spills up to 60 ml | — |
| Shortcut keys | Mic mute, dictation, screen capture | — |
| Size | 457.3 × 193.5 × 24 mm | 430 × 132 × 21 mm |
| Weight | 700 g with batteries | 810 g |
| Software | Logi Options+ on Windows and macOS | — |
| Backlight | — | Yes, turns on as your hands approach, adjusts to room light |
| Battery | — | Rechargeable, 1,500 mAh: up to 10 days with backlight, 5 months without |
From the maker's spec sheet for the Signature K650 (Logitech Signature K650) and the Logitech MX Keys S (MX Keys S (920-011584)), checked October 2026. Versions sold in other countries can differ slightly.
- Is the Signature K650 worth it?
- Is the Logitech MX Keys S worth it?
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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 K650: 26 verified buyer ratings at Currys and Best Buy (Canada), read October 2026.
Owner reports for the Logitech MX Keys S: 326 verified buyer ratings at Currys, Otto (Germany), Best Buy (Canada) and LDLC (France), read October 2026.