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Logitech MX Keys S vs ERGO K860: Shape and Power Choices

Choose MX Keys S for its low-profile design and rechargeable desk routine. Choose ERGO K860 when you specifically want a curved split layout with palm support and replaceable AAA batteries. Treat comfort as something to assess for yourself, and check receiver compatibility before replacing an existing Logitech keyboard.

Published by Pickoryx · Published 2026-10-05

Source checked 2026-10-05 07:44 UTC

Products compared

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The buying question

Does your desk routine favor the MX Keys S’s low-profile, rechargeable approach or the K860’s curved split frame and replaceable batteries?

A low-profile keyboard with USB-C recharging versus a split, curved keyboard with palm support and AAA replacement.

Quick verdict

When to skip: Your choice depends on a guaranteed improvement in pain, posture or typing comfort.
When the recommendation changes
  • The K860’s keyframe and palm-rest outline do not suit your available desk or tray space.
  • You prefer charging over replacing cells, or the reverse.
  • An existing receiver must be reused: check whether it is Bolt or Unifying before choosing.

The differences that matter

Keyframe Palm Support And Desk Fit

Logitech MX Keys S (Graphite)

Low-profile keyframe.[1]

Logitech ERGO K860 (consumer Graphite)

Curved split keyframe with a pillowed palm rest and 0°, -4°, or -7° palm-lift settings.[2, 4]

What this changes: Choose by the shape you want to use: MX Keys S for its low-profile approach, or ERGO K860 for the split curve and built-in palm-support arrangement. Check the complete keyboard outline against your desk or tray before buying; neither design establishes a universal comfort advantage.[1, 2]

The better fit depends on your priorities

Lighting And Power Routine

Logitech MX Keys S (Graphite)

Rechargeable battery, topped up through USB-C; typing can continue while it charges.[5, 3]

Logitech ERGO K860 (consumer Graphite)

Powered by two replaceable AAA batteries.[4]

What this changes: Choose MX Keys S if keeping a charging cable available suits your desk. Choose ERGO K860 if you prefer replacing cells when needed. This is a power-maintenance choice, not a tested runtime or ownership-cost ranking.[5, 3, 4]

The better fit depends on your priorities

Best for your routine

A low-profile desk setup with a charging cable nearby

Best fit: Logitech MX Keys S (Graphite)

Based on listed features, not comparative testing.

MX Keys S fits that combination of design and power routine. You can keep typing while charging, but must still plan to recharge it.

View Logitech MX Keys S (Graphite) on AmazonPaid link

A deliberate move to a curved split keyframe

Best fit: Logitech ERGO K860 (consumer Graphite)

Based on listed features, not comparative testing.

Choose ERGO K860 for that physical layout and its palm-lift choices. Make room for the complete palm-rest outline and allow yourself to assess the different shape; no comfort result is guaranteed.

View Logitech ERGO K860 (consumer Graphite) on AmazonPaid link

A desk routine built around replacement batteries

Best fit: Logitech ERGO K860 (consumer Graphite)

Based on listed features, not comparative testing.

K860 uses two AAA cells, so replacement batteries can be your low-power plan. This does not establish lower costs or longer real-world life than the rechargeable MX.

View Logitech ERGO K860 (consumer Graphite) on AmazonPaid link

Value and trade-offs

One or both observed offers have eligibility conditions, so no unrestricted price difference is shown.

Whichever model costs more at checkout should earn the difference through a layout and power routine you prefer. Receiver compatibility can also change the setup you need; do not count same-brand ownership as proof that the old receiver will work.

There is not enough verified price history for a purchase-timing recommendation. Compare current offers for the exact consumer models.

Limitations

  • This is a manufacturer-documentation comparison without Pickoryx hands-on testing. It does not establish a typing-speed, comfort, medical-benefit, battery-runtime or reliability winner.
  • The selected products are US Graphite MX Keys S 920-011558 and consumer ERGO K860 920-009166. MX Keys S for Mac, older MX Keys, combos and K860 for Business are different purchase configurations.
  • Check the exact keyboard layout, accessories and current operating-system requirements on the offer you buy. Software-supported functions can vary by operating system.

Questions shoppers ask

Can I reuse the same USB receiver when switching between these keyboards?

Not between their receiver families. MX Keys S uses Logi Bolt; this consumer K860 uses Unifying. Logitech says the two families are incompatible. Use the appropriate receiver or a supported Bluetooth connection, and do not substitute K860 for Business specifications.

Will the MX Keys S stay illuminated until its battery runs out?

No. Logitech says its key backlighting turns off at 10% remaining charge. If you rely on illuminated legends, plug it in to charge before continuing that routine; typing can continue while charging.

Can both keyboards switch between computers?

Yes. Logitech documents pairing with up to three computers and selecting among them with the Easy-Switch keys on both models. That shared feature does not make their USB receiver families interchangeable.

Methodology and sources

Compared documented keyframe design and power routines, then checked the receiver families of the exact consumer models.

AI assisted with source research and drafting.

View 6 sources
  1. 1.MX Keys S, US Graphite 920-011558Logitech · Official specifications · Source checked 2026-10-05 07:44 UTC
    Evidence used on this page
    • Color Graphite; Ergonomic design; Smart illumination: Exact US product selection, low-profile design and hand-proximity/ambient-light backlighting.
  2. 2.ERGO K860, US Graphite 920-009166Logitech · Official specifications · Source checked 2026-10-05 07:44 UTC
    Evidence used on this page
    • Split Ergonomic Keyboard; Three layers; Give your wrists a lift: Exact consumer product selection, curved split keyframe, pillowed palm rest and 0°, -4°, -7° tilt settings. No medical outcomes are adopted.
  3. 3.Getting Started: MX Keys SLogitech · Official specifications · Source checked 2026-10-05 07:42 UTC
    Evidence used on this page
    • Detailed setup; Battery Status Notification; Smart backlighting; Low battery: Included Logi Bolt receiver or Bluetooth; USB-C charging while typing; backlighting turns off at 10% charge.
  4. 4.Getting Started: ERGO K860Logitech · Official specifications · Source checked 2026-10-05 07:44 UTC
    Evidence used on this page
    • Product Overview; Connecting; Battery Information: Consumer ERGO K860 uses Bluetooth or Unifying and two AAA batteries; explains the curved split frame and palm-lift design.
  5. 5.Specification: MX Keys SLogitech · Official specifications · Source checked 2026-10-05 07:42 UTC
    Evidence used on this page
    • Battery details; Keyboard Specifications; Product Information: Confirms rechargeable operation and backlighting; describes package variants, so palm-rest inclusion is not inferred for every kit.
  6. 6.Logi Bolt and Unifying receiver compatibilityLogitech · Official specifications · Source checked 2026-10-05 07:44 UTC
    Evidence used on this page
    • Answer paragraph: Bolt devices cannot use Unifying receivers and Unifying devices cannot use Bolt receivers. Applied only after each exact keyboard receiver family is established.

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