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Logitech K585 vs MX Keys S: Which Desk Setup Fits Your Routine?

K585 is described as compact and includes a built-in phone cradle plus two device channels. MX Keys S has a documented 430.2 mm keyboard length, up to three paired-computer channels and USB-C charging. Choose by your desk and switching routine; the cited sources do not establish a typing-quality winner.

Published by Pickoryx · Published 2026-10-04

Source checked 2026-10-04 07:38 UTC

Products compared

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The buying question

Which mix fits your desk: the K585's compact layout, integrated phone cradle and FN-key customization, or MX Keys S's three-computer switching, adaptive backlighting and rechargeable workflow?

K585 positively documents a compact design, integrated phone cradle, customizable FN keys and two-device switching; MX Keys S documents its own backlighting/Smart Actions features, up to three paired computers and USB-C recharging. These are feature-fit choices, not an exclusivity or typing-quality ranking.

Quick verdict

When to skip: You require a wired keyboard; both cited product configurations are wireless.
When the recommendation changes
  • If you do not type on a phone placed beside your computer, the K585's built-in cradle may not matter to your choice.
  • If two paired devices are enough, the MX Keys S third channel may not matter to your setup.

The differences that matter

Desk Layout And Daily Typing Workflow

Logitech K585 Slim Multi-Device Wireless Keyboard (Graphite, 920-011479)

The K585 US page describes a compact layout with number pad and built-in phone cradle; it also describes customizable FN keys using Logi Options+. No physical K585 dimensions are used here.[1, 2]

Logitech MX Keys S Wireless Illuminated Keyboard (Graphite, 920-011558)

The MX Keys S specification lists a 430.20 mm keyboard length; its US Graphite page documents smart illumination and programmable Smart Actions. Both products' cited pages document shortcut customization, and the cited K585 page does not establish its exact physical dimensions.[3, 5]

What this changes: Choose K585 if its integrated phone cradle and compact layout fit your desk routine, or if its FN-key customization matches your shortcut use. Choose MX Keys S if its listed 430.20 mm length fits your desk and you want the product-page-documented illumination and Smart Actions workflow. The sources do not establish that MX Keys S lacks a phone holder or that K585 lacks illumination/Smart Actions; no exclusive-feature conclusion is made.[1, 3, 5]

The better fit depends on your priorities

Multi Device Switching And Power Routine

Logitech K585 Slim Multi-Device Wireless Keyboard (Graphite, 920-011479)

Up to two devices, Bluetooth or a 2.4 GHz receiver; exact-part brochure lists Unifying receiver and two pre-installed AAA batteries, with a 24-month estimate subject to use conditions.[1, 2]

Logitech MX Keys S Wireless Illuminated Keyboard (Graphite, 920-011558)

Up to three paired computers using Bluetooth or the included Logi Bolt receiver; rechargeable internal battery charges over USB-C and the keyboard can be used while charging.[4, 5]

What this changes: Pick the device-channel count and charging method that fit your routine; the manufacturer's battery estimates do not provide a comparable test between these products.[1, 2, 4, 5]

The better fit depends on your priorities

Best for your routine

Typing on a phone placed beside the keyboard in a compact desk setup.

Best fit: Logitech K585 Slim Multi-Device Wireless Keyboard (Graphite, 920-011479)

Based on listed features, not comparative testing.

The K585 official page positively documents a compact layout and built-in phone cradle; it does not establish that MX Keys S lacks a phone holder.

View Logitech K585 Slim Multi-Device Wireless Keyboard (Graphite, 920-011479) on AmazonPaid link

Value and trade-offs

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

If MX Keys S is the higher-priced offer at checkout, weigh whether its third pairing channel, adaptive backlighting and rechargeable USB-C setup fit your routine. K585 also documents customizable FN keys; this comparison does not treat MX Keys S shortcut customization as an exclusive function.

No price history was assessed here, so timing guidance is unavailable.

Limitations

  • This is a specification-based comparison, not a hands-on typing, sound, comfort, durability or battery-runtime test.
  • K585's 24-month battery figure is the manufacturer's estimate and varies with use; it is not a comparable runtime test against MX Keys S.
  • No K585 physical dimensions are used: Logitech describes that model as compact, but the opened brochure's table is explicitly package specifications. MX Keys S lists a 430.20 mm keyboard length; check desk fit for that board.
  • The research identifies the K585 Graphite part 920-011479 and MX Keys S Graphite part 920-011558. Check the selected seller's exact model and package at checkout.

Questions shoppers ask

How many devices can each keyboard switch between?

Logitech lists the K585 for up to two devices. Its MX Keys S support instructions describe pairing up to three computers and switching channels with an Easy-Switch key.

Does this comparison show which keyboard has longer battery life?

No. Logitech's K585 brochure gives a 24-month estimate with a usage-conditions caveat; MX Keys S battery duration depends on backlight and usage conditions. Those published figures are not a matched test, so choose between replaceable AAA batteries and USB-C recharging instead of treating them as a runtime ranking.

Methodology and sources

Compared the official product identity, layout and phone-placement features, device switching and power setup. Published battery estimates were not treated as a matched performance test.

AI assistance organized the research and drafted this comparison; the material product claims were checked against the linked Logitech sources.

View 5 sources
  1. 1.K585 Slim Multi Device Wireless KeyboardLogitech · Official specifications · Source checked 2026-10-04 07:38 UTC
    Evidence used on this page
    • US Graphite product page; title/color at lines 59–69; built-in phone cradle and Easy-Switch up to two devices at 119–125; Bluetooth and 2.4 GHz receiver stored in battery door at 127–137; compact layout, number pad and customizable FN keys with Logi Options+ at 111–117.: The US K585 Graphite page describes the compact form, built-in phone cradle, number pad, customizable FN keys, two-device switching, Bluetooth and 2.4 GHz receiver. It does not give physical keyboard dimensions or establish whether MX Keys S shares any named function.
  2. 2.K585 Slim Multi-Device Wireless Keyboard — Logitech Manufacturer Brochure and Package SpecificationsLogitech (manufacturer brochure hosted on product-asset storage) · Official specifications · Source checked 2026-10-04 07:38 UTC
    Evidence used on this page
    • PDF page 1 of 2: features, included receiver/batteries, system requirements and overview (text lines 0–43). PDF page 2 of 2: Graphite P/N 920-011479 and UPC 097855183156 under package specifications (lines 61–66). Rows 67–70 are explicitly labeled PACKAGE SPECIFICATIONS and are not used as keyboard dimensions.: Logitech-authored brochure directly maps Graphite P/N 920-011479 and UPC 097855183156 on page 2. Page 1 lists the included Unifying receiver, two pre-installed AAA batteries, 24-month battery-life estimate with variability caveat, Bluetooth requirements including Chrome OS, compact layout, phone cradle and customizable FN keys. The page-2 package-size table is not used as device dimensions.
  3. 3.Buy MX Keys S KeyboardLogitech · Official specifications · Source checked 2026-10-04 07:38 UTC
    Evidence used on this page
    • US Graphite product page title/color at lines 58–69; spherically dished keys at 112–119; smart illumination at 121–127; Smart Actions at 129–136; three-device workflow at 147–157.: Exact US Graphite product-page URL for P/N 920-011558; describes smart illumination, programmable Smart Actions and switching across up to three devices.
  4. 4.Getting Started - MX Keys SLogitech Support · Official support · Source checked 2026-10-04 07:38 UTC
    Evidence used on this page
    • Pairing/channel steps at lines 78–85; included Logi Bolt receiver or Bluetooth at lines 58–63; USB-C cable and continued typing while charging at lines 103–108; backlight usage/setup limits at lines 112–142.: MX Keys S pairing instructions describe up to three paired computers, Bolt or Bluetooth connection, switching channels, USB-C charging while typing and backlight customization/conditions.
  5. 5.Specification - MX Keys SLogitech Support · Official support · Source checked 2026-10-04 07:38 UTC
    Evidence used on this page
    • Product information/model at lines 47–53; physical specifications at lines 54–60; wireless connectivity at lines 61–67; keyboard/backlighting/battery specification at lines 88–106.: Official MX Keys S specification lists the USB receiver and USB-C cable in box, 430.20 mm keyboard length and rechargeable 1500 mAh battery; states battery life varies by backlight level and conditions.

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