Logitech K585 vs K400 Plus: Which Input Setup Fits?
Choose K400 Plus for typing and cursor control together on a compatible TV-connected computer. Choose K585 for typing between a computer and phone or tablet, with a built-in phone cradle and number pad. K585 includes a receiver but no listed mouse, so account for the pointing method as well as the connection.
Published by Pickoryx · Published 2026-10-05
Source checked 2026-10-05 18:15 UTC
Products compared
Product A · ASIN B0BL2ND2GC
Logitech K585 Slim Multi-Device (Graphite, 920-011479)
Last observed offer
$49.99
Per listed package.
Offer eligibility must be confirmed on Amazon.
Checked 2026-10-19 13:23 UTC. Price and availability may change.
Product B · ASIN B014EUQOGK
Logitech K400 Plus (Black, 920-007119)
Last observed offer
$27.58 List Price: $34.99
Per listed package.
Checked 2026-10-19 13:46 UTC. Price and availability may change.
Pickoryx may earn a commission from qualifying purchases through the paid Amazon links on this page, at no added cost to you.
The buying question
Do you need cursor control on the keyboard itself, or a phone holder and number pad, and will you type on one receiver-equipped host or switch between two devices?
K400 Plus combines typing and a touchpad for a compatible USB host. K585 supplies a phone cradle, number pad and two-device Easy-Switch, while leaving cursor control to another input method.
Quick verdict
Choose Logitech K585 Slim Multi-Device (Graphite, 920-011479) if
- You want a phone cradle and separate numeric keypad.
- You need Easy-Switch between two compatible devices and can use another pointing method.
Choose Logitech K400 Plus (Black, 920-007119) if
- You want keyboard and touchpad together for a compatible receiver-equipped host.
- A supported TV-connected computer is your main use, and you do not need a separate numeric keypad.
When the recommendation changes
- A host without suitable USB-receiver support may favor K585’s Bluetooth connection, provided its Bluetooth LE and OS requirements are met.
- If your setup already has a mouse or touchscreen, an integrated touchpad may be unnecessary.
- If you need frequent numeric entry, K585’s separate number pad can matter more than K400’s integrated pointer.
- For direct smart-TV use, check the exact TV and applications for keyboard and pointer support before choosing either model.
The differences that matter
Built In Pointer Or Phone Cradle
What this changes: Choose K400 Plus when you want typing and cursor control in one object away from a desk. Choose K585 for a phone holder and number pad; plan another pointing method if your host needs one.[1, 2, 3, 5]
Host Connections And Switching
What this changes: K585 offers a documented direct Bluetooth path for compatible devices. K400 Plus suits a compatible receiver-equipped host; Bluetooth availability on a TV alone does not establish that setup.[1, 2, 3, 4]
Host Connections And Switching
Logitech K585 Slim Multi-Device (Graphite, 920-011479)
Easy-Switch changes typing between two paired devices.[1]
What this changes: K585 fits moving a typing session between a computer and phone. K400 Plus fits keeping keyboard and pointer control with a supported TV-connected computer. This does not promise simultaneous typing into two devices or automatic transfer of a separate mouse.[1, 3, 4]
Best for your routine
Controlling a TV-connected computer from the couch
Best fit: Logitech K400 Plus (Black, 920-007119)
Based on listed features, not comparative testing.
K400 Plus puts the keyboard and touchpad together. Use its receiver with a supported host and check that your applications accept the inputs you need.
Typing on a computer and a phone at the same desk
Best fit: Logitech K585 Slim Multi-Device (Graphite, 920-011479)
Based on listed features, not comparative testing.
K585 provides the phone cradle and switches typing between two paired devices. Confirm the phone’s Bluetooth LE and OS support and keep an appropriate pointing method for the computer.
Entering numbers while an existing mouse handles the pointer
Best fit: Logitech K585 Slim Multi-Device (Graphite, 920-011479)
Based on listed features, not comparative testing.
K585 keeps a dedicated numeric keypad. The existing mouse covers the pointing function that K400 supplies in its keyboard body.
Value and trade-offs
One or both observed offers have eligibility conditions, so no unrestricted price difference is shown.
Compare current offers after accounting for the whole input setup. A phone holder, numeric keypad and two-device typing may justify K585; an integrated pointer may justify K400. Include any additional mouse or device holder you actually need.
There is not enough price history here to assess purchase timing.
Community discussions
Questions and individual experiences add context, not controlled-test results, failure rates, or owner consensus.
K585 Bluetooth and USB-dock setup on a Mac
A K585 user describes a Bluetooth detection problem on a MacBook Air M3, alongside broader USB-dock problems. The post does not isolate a keyboard fault. It is useful context for testing the intended host and connection; the suggested re-pairing step is not a verified fix.
Reddit discussion · Applies to Logitech K585 Slim Multi-Device (Graphite, 920-011479) · Source checked 2026-10-05 18:12 UTC
A K585 used alongside a separate mouse
In a discussion covering many Logitech products, one commenter describes using a K585 with an MX3 mouse at a dining table. That is a specific separate-pointer setup to consider. The thread does not verify the US keyboard variant, establish K585 durability or represent owner consensus.
Reddit discussion · Applies to Logitech K585 Slim Multi-Device (Graphite, 920-011479) · Source checked 2026-10-05 18:11 UTC
K400 Plus on an LG C2: input support can vary by app
A poster reports using K400 Plus with an LG OLED C2, while a reply describes typing limitations in YouTube and Spotify. These unverified accounts concern particular setups. Check the exact TV and apps rather than assuming receiver recognition makes every input work.
Reddit discussion · Applies to Logitech K400 Plus (Black, 920-007119) · Source checked 2026-10-05 18:11 UTC
Limitations
- No hands-on comparison establishes typing comfort, key noise, pointer precision, wireless reliability, latency or battery-life superiority.
- The K585 cradle is documented as a device holder. Check your phone and case fit, and plan to use the phone’s normal charging arrangement.
- TV-connected-PC use is distinct from plugging directly into a smart TV. Keyboard input, pointer input and individual apps need their own compatibility check.
- K400’s current product page and release-era specification list different Android minimums. No Android version advantage is claimed, and generic support-site notices do not establish model-specific software support.
Questions shoppers ask
Can either keyboard replace a mouse?
K400 Plus includes a touchpad for cursor control on a compatible host. K585 has a number pad and phone cradle instead; use a separate mouse, the host’s touchpad or touchscreen, or another suitable input method. Its listed keyboard package does not include a mouse.
Can I connect K400 Plus just because my television has Bluetooth?
Its documented connection requires the USB Unifying receiver. Verify that the television supports the keyboard and pointer through that receiver and that the apps you use accept those inputs. The PC-connected-TV description is not a universal smart-TV compatibility promise.
How many devices can K585 switch between?
Logitech documents Easy-Switch for typing between two paired devices. It sends typing to the selected device; this does not mean text is entered into both at once or that a separate mouse changes hosts with it.
Methodology and sources
Separated the integrated pointer versus phone-holder/number-pad choice from host connection and device switching. Matched exact US part numbers, package contents and receiver families.
AI assisted source organization, drafting and structural checks. Recommendations concern feature and setup fit.
View 5 sources
- 1.Logitech K585 Slim Multi-Device, Graphite 920-011479, English USLogitech US · Official specifications · Source checked 2026-10-05 18:09 UTC
Evidence used on this page
- Easy-Switch and phone cradle; product data for representedProductId 920-011479; linked layout image: Exact Graphite English US (QWERTY) variant. Describes a phone cradle, number pad and switching typing between two devices. The exact product data identifies Unifying/Bluetooth LE and a supplied Unifying receiver. Its linked image was visually inspected; Logitech uses a k580 asset path for this K585 page.
- 2.Logitech K585 Slim Multi-Device manufacturer brochureLogitech, manufacturer brochure hosted by Etilize · Official specifications · Source checked 2026-10-05 18:10 UTC
Evidence used on this page
- Page 1: features, box and separate receiver/Bluetooth requirements; page 2: Graphite part and UPC: Two-page Logitech brochure explicitly maps Graphite 920-011479 to UPC097855183156. Confirms phone stand, numeric keypad, included Unifying receiver and Bluetooth LE host requirements. The operating-system list distinguishes basic functions on mobile/Linux/ChromeOS from software functions on Windows/macOS.
- 3.Logitech K400 Plus Wireless Touch Keyboard, Black 920-007119Logitech US · Official specifications · Source checked 2026-10-05 18:10 UTC
Evidence used on this page
- Description; Quiet keys, large touchpad; Wireless and compatible; exact-variant package data: Exact Black product has an integrated touchpad and uses the included Unifying receiver for a compatible host, with PC-connected-TV use emphasized. Lists Windows, Android and ChromeOS support. Marketing promises about range, lag, comfort and durability are not adopted.
- 4.Wireless Touch Keyboard K400 Plus Technical SpecificationsLogitech · Official specifications · Source checked 2026-10-05 18:08 UTC
Evidence used on this page
- Required Accessory; Connection Type; General Product Specifications: Specifies a required USB Unifying receiver and Unifying 2.4GHz connection. Release-era Android minimum differs from the current product page; no comparative minimum-version advantage is inferred. Generic software notices are not treated as model-specific Options+ support.
- 5.Logitech education guide: K400 Plus 920-007119 layoutLogitech · Official specifications · Source checked 2026-10-05 07:53 UTC
Evidence used on this page
- Page 2, K400 Plus Wireless Touch Keyboard tile and SKU-labelled image: Retained official PDF capture from 07:53:46Z, read again offline for this task. The tile explicitly labels920-007119 and shows the integrated touchpad and no separate numeric keypad. Original retrieval time and file hashes are preserved; this is not a new network download.