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  1. Table of Contents
  2. Top
  3. Main Differences
  4. Design
    1. Dimensions
    2. Build Quality
    3. Ergonomics
    4. Hardware Customizability
    5. Backlight Features
    6. Backlight Clarity
    7. Cable & Connector
    8. Wireless Versatility
    9. Macro Keys And Programming
    10. Extra Features
    11. In The Box
  5. Typing Experience
    1. Typing Quality
    2. Typing Noise
    3. Switches
    4. Keystrokes
    5. Latency
  6. Performance
    1. Single-Key Latency
    2. Multi-Key Latency
    3. Data Transmission
    4. Chord Split
  7. Software and Operating System
    1. Configuration Software
    2. Computer Compatibility
    3. Wireless Mobile Compatibility
  8. Comments

Logitech MX Keys vs Keychron K4

Side-by-Side Comparison

Products

Logitech MX Keys
Keychron K4

Tested using Methodology v1.3.1

Updated Nov 27, 2023 05:24 PM

SEE PRICE
Amazon.com

Tested using Methodology v1.0

Updated May 15, 2023 09:40 PM

SEE PRICE
Amazon.com
Logitech MX Keys Picture
Keychron K4 Picture

Variants

  • MX Keys (Black (Multi-OS))
  • MX Keys (Graphite (Multi-OS))
  • MX Keys (Space Grey (Mac OS))
  • K4 (Black)

Our Verdict

Logitech MX Keys

Keychron K4

For most uses, the Logitech MX Keys is better than the Keychron K4. Both are wireless keyboards, and both have a multi-device pairing feature for multitasking. Although both feel great to type on, they provide very different typing experiences since the Logitech is a low-profile keyboard with scissor switches, and the Keychron is a mechanical keyboard with a fairly high profile. The Logitech has software support, which the Keychron doesn't have, and it produces less typing noise, which is better for quiet offices.

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Notice: Two or more of the products selected have been tested with different test methodologies, so some of the results below aren't directly comparable. Learn how our test benches and scoring system work, and read more about the latest changes to our keyboards test methodology.

Main Differences for

Threshold 

0.10

Gaming 

6.4
7.7

Configuration Software 
 

Single-Key Latency 
 

5.8
7.4

Backlight Features 
 

7.5
8.9

Operating Force 
 

61 gf
58 gf

Full Comparison

Design

Dimensions 
 

Top Picture  

Logitech MX Keys Top Picture
Keychron K4 Top Picture

Size 
 

Full-size (100%)
Compact (96%)

Height 
 

0.8" (2.0 cm)
1.5" (3.7 cm)

Width  

16.9" (43.0 cm)
14.6" (37.1 cm)

Depth 
 

5.2" (13.2 cm)
4.9" (12.5 cm)

Depth With Wrist Rest 
 

N/A
N/A

Weight 
 

1.77 lbs (0.805 kg)
1.69 lbs (0.765 kg)

Show text

Build Quality 
 

8.0
8.0

Build Quality Close Up  

Logitech MX Keys Build Quality Close Up
Keychron K4 Build Quality Close Up

Keycap Material  

ABS
ABS

Show text

Ergonomics 
 

7.0
6.5

Side Picture  

Logitech MX Keys Side Picture
Keychron K4 Side Picture

Curved/Angled 
 

No
Straight

Split Keyboard 
 

No

Key Alignment 
 

Staggered

Minimum Incline 
 

5.8°

Medium Incline 
 

N/A
N/A

Maximum Incline 
 

N/A

Home Row Height 
 

13.1 mm (0.5")

Wrist Rest  

No

Show text

Hardware Customizability 
 

0.0

Customizability Overview  

Logitech MX Keys Customizability Overview

Replaceable Cherry Stabilizers 
 

No

Stabilizer Fixation 
 

Non-Customizable Design

Spacebar Stabilizer Size 
 

Non-Customizable Design

Size Of Right Mod Keys 
 

Non-Standard

Hot-Swappable Switches 
 

No

Switch Stem Shape 
 

Non-Customizable Design

Switch PCB Socket 
 

Non-Customizable Design

North-Facing Cherry MX Interference 
 

Non-Customizable Design

Backlight Features 
 

7.5
8.9

Backlighting Picture  

Logitech MX Keys Backlighting Picture
Keychron K4 Backlighting Picture

Brightness Max  

Logitech MX Keys Brightness Max
Keychron K4 Brightness Max

Backlighting  

Yes
Yes

Brightness Min  

Logitech MX Keys Brightness Min
Keychron K4 Brightness Min

White Shot 
 

Logitech MX Keys White Shot
Keychron K4 White Shot

RGB 
 

No

Per-Key Backlighting 
 

Yes
Yes

Effects 
 

No
Yes

Software Controllable 
 

Yes
No

Color 
 

White

Color Mixing 
 

White Only

Show text

Backlight Clarity 
 

8.0

White Shot  

Logitech MX Keys White Shot
Keychron K4 White Shot

Show text

Cable & Connector  

Connectivity  

Wireless
Wireless

Detachable 
 

Yes (Charge Only)
Yes (Wired Mode and Charge)

Length  

4.4 ft (1.3 m)
3.8 ft (1.2 m)

Connector (Keyboard side) 
 

USB type-C
USB type-C

Show text

Wireless Versatility 
 

10
10

Bluetooth 
 

Yes
Yes

Bluetooth Multi-Device Pairing 
 

3
3

Proprietary Receiver 
 

Yes
No

Battery Type 
 

Rechargeable
Rechargeable

Show text

Macro Keys And Programming 
 

4.0

Dedicated Macro Keys Count  

0

Onboard Macro Programming 
 

No

Macro Programming With Software 
 

Yes

Show text

Extra Features 
 

Extra Features  

Logitech MX Keys Extra Features
Keychron K4 Extra Features

Media Keys 
 

Non-Dedicated
Hot Keys

Trackpad / Trackball  

No
No

Scroll Wheel 
 

No
No

Control Knob 
 

No

USB Passthrough 
 

No
No

Numpad  

Yes
Yes

Windows Key Lock 
 

Yes
No

Lock Indicator  

Caps Lock
No Indicator

Macro Programmable Keys 
 

No

Show text

In The Box  

Bundle Picture  

Logitech MX Keys Bundle Picture
Keychron K4 Bundle Picture

Show text

Typing Experience

Typing Quality 
 

8.0
8.0

Key Spacing 
 

19.0 mm (0.748")

Show text

Typing Noise 
 

9.6
9.0

Typing Sample  

Average Loudness 
 

40.2 dBA

High Pitch Clicks 
 

No

Noise 
 

Quiet

Show text

Switches 
 

Wobble Video  

Switch Name 
 

No Marketed Name
LK Optical Brown

Switch Type 
 

Scissor

Feel 
 

Tactile
Tactile

Analog 
 

No

Keystrokes 
 

Key Switch Actuation Graph  

See details on graph tool
See details on graph tool

Key Switches 
 

No Marketed Name
LK Optical Brown

Mechanical 
 

Yes

Feel 
 

Tactile
Tactile

Operating Force 
 

61 gf
58 gf

Actuation Force 
 

36 gf
57 gf

Pre-Travel 
 

1.3 mm
1.9 mm

Total Travel 
 

1.9 mm
4.0 mm

Show text

Latency 
 

5.8
7.4

Latency Video  

Latency Wired 
 

N/A
11.1 ms

Latency Receiver 
 

26.8 ms
N/A

Latency Bluetooth 
 

21.7 ms
23.3 ms

Show text

Performance

Single-Key Latency 
 

5.8
7.4

Single-Key Latency Graph  

See details on graph tool

Best Connection 
 

21.7 ms

Best Connection Std Dev  

±7.9 ms

Wired 
 

N/A
11.1 ms

Receiver 
 

26.8 ms
N/A

Bluetooth 
 

21.7 ms
23.3 ms

PCB (Estimated) 
 

20.8 ms

Show text

Multi-Key Latency 
 

6.2

Latency Video  

Multi-Key Latency Graph  

See details on graph tool

Connection Evaluated  

Receiver

Key Press 
 

22.7 ms

Key Release 
 

43.1 ms

Show text

Data Transmission 
 

5.3

Multi-Key Raw USB  

Logitech MX Keys Multi-Key Raw USB

Connection Evaluated  

Receiver

USB Polling Rate 
 

500 Hz

Effective Update Rate 
 

125 Hz

N-Key Rollover (NKRO) 
 

No

Multiple Keys Per USB Report 
 

No

Show text

Chord Split 
 

1.5

Chord Split Graph  

See details on graph tool

4 Chord Split Delay 
 

60.3 ms

8 Chord Split Delay 
 

N/A

Show text

Software and Operating System

Configuration Software 
 

Software Picture  

Keychron K4 Software Picture

Software Tour  

Software Name  

Logi Options+
No Software

Software Windows Compatible 
 

Yes
No

Software macOS Compatible 
 

Yes
No

Onboard Memory 
 

No
No

Profiles 
 

6+
No Profile

Account Required 
 

No Software

Cloud Sync 
 

No

Macro Programming 
 

No

Ease Of Use 
 

No Software

Show text

Computer Compatibility 
 

10
9.1

Windows 
 

Fully Compatible
Full

macOS 
 

Fully Compatible
Full

Linux (Ubuntu 22) 
 

Fully Compatible
Partial

Media Key Compatibility 
 

Windows, MacOS & Linux

Android  

Fully Compatible
Partial

iOS  

Fully Compatible
Partial

iPadOS  

Fully Compatible
Partial

Show text

Wireless Mobile Compatibility 
 

10

Android 
 

Fully Compatible
Partial

iOS 
 

Fully Compatible
Partial

iPadOS 
 

Fully Compatible
Partial

Media Key Compatibility 
 

Android, iPhone & iPad

Show text

Logitech MX Keys

Keychron K4

Comments

  1. Comparison

Logitech MX Keys vs Keychron K4: Main Discussion

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