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Keychron B31 Wireless Keyboard

Keychron B31

The Keychron B31 is a compact 75% wireless keyboard designed for users who want a quiet, stable typing experience with versatile connectivity. It suits office workers, students, or anyone needing a low-noise keyboard that works seamlessly across multiple devices. Its scissor-switch keys offer a different feel from mechanical switches, focusing on smoothness and silence rather than tactile feedback or key swapping.</p... Read more
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Keychron B31 Wireless Keyboard (US ANSI Layout)

Keychron (DE)
Keychron (DE)
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$60
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Compare Keychron B31 vs MCHOSE G75 Pro vs Redragon K628 Pollux Specification

Compare similar keyboards side by side, or use the comparison table to compare all keyboards!
Keychron B31MCHOSE G75 ProRedragon K628 Pollux
Keychron B31 Wireless Keyboard
-12% off
74
MCHOSE G75 Pro Tri-mode Gasket Structure Gaming Mechanical Keyboard
62
POLLUX K628 75% Wired Keyboard
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  • Released in 2026
  • Has Linear, Tactile, Clicky switch options
  • Provides dedicated media keys
  • Runs at a 1000 Hz polling rate
  • Equipped with a 800 mAh battery
  • Weighs about 520 g
  • Sized at 26 x 138 x 327 mm
  • Made with a ABS, Plastic case
  • Offers No RGB lighting
  • Released in 2024
  • Uses a Gasket Mount mounting style
  • Sized at 42 x 139 x 322 mm
  • Made with a Aluminum case
  • Features PBT keycaps
  • Offers Yes, Rgb, South-face, Rgb South-face RGB lighting
  • Released in 2023
  • Uses a Bottom Mount mounting style
  • Supports Wired, Wired only connectivity
  • Weighs about 470 g
  • Made with a Plastic case
  • Offers Yes, Rgb RGB lighting
Scores
  • Performance: 58
  • Build Quality: 43
  • Productivity: 69.5
  • Customizability: 46.6
  • Portability: 78.6
Scores
  • Performance: 63.5
  • Build Quality: 74.6
  • Productivity: 76
  • Customizability: 68.8
  • Portability: 80.6
Scores
  • Performance: 79
  • Build Quality: 57.1
  • Productivity: 61.3
  • Customizability: 59.7
  • Portability: 60.9
Name
Keychron B31
Name
MCHOSE G75 Pro
Name
Redragon K628 Pollux
Release year
2026
Release year
2024
Release year
2023
Switch Options
Linear, Tactile, Clicky
Switch Options
Linear
Switch Options
Linear
Profile
Normal Profile
Profile
Normal Profile
Profile
Normal Profile
Hot Swappable
 
Hot Swappable
 
Hot Swappable
 
Layout Size
75%
Layout Size
75%
Layout Size
75%
Layout Standard
ANSI
Layout Standard
ANSI
Layout Standard
ANSI
Layout Ergonomics
Normal
Layout Ergonomics
Normal
Layout Ergonomics
Normal
Knob Support
 
Knob Support
 
Knob Support
 
Display Support
 
Display Support
 
Display Support
 
Mac/Win Support
 
Mac/Win Support
 
Mac/Win Support
 
Multi-Media Keys
 
Multi-Media Keys
 
Multi-Media Keys
 
USB-C
 
USB-C
 
USB-C
 
USB passthrough
 
USB passthrough
 
USB passthrough
 
Connection
Bluetooth, 2.4 GHz, Wired, Wireless
Connection
Bluetooth, 2.4 GHz, Wired, Wireless
Connection
Wired, Wired only
Polling Rate
1000 Hz
Polling Rate
-
Polling Rate
-
Battery capacity
800 mAh
Battery capacity
-
Battery capacity
-
Hall Effect Support
 
Hall Effect Support
 
Hall Effect Support
 
QMK Support
 
QMK Support
 
QMK Support
 
VIA Support
 
VIA Support
 
VIA Support
 
VIAL Support
 
VIAL Support
 
VIAL Support
 
N-Key Rollover
 
N-Key Rollover
 
N-Key Rollover
 
Rapid Trigger
 
Rapid Trigger
 
Rapid Trigger
 
Mount Style
-
Mount Style
Gasket Mount
Mount Style
Bottom Mount
Screw in Stabilizers
 
Screw in Stabilizers
 
Screw in Stabilizers
 
Sound Dampening
 
Sound Dampening
 
Sound Dampening
 
Backlight
 
Backlight
 
Rgb, South-face
Backlight
 
Rgb
Case Colors
Case Colors
Case Colors
Case Material
ABS, Plastic
Case Material
Aluminum
Case Material
Plastic
Keycaps Material
ABS
Keycaps Material
PBT
Keycaps Material
ABS
Dimensions
26 x 138 x 327 mm
Dimensions
42 x 139 x 322 mm
Dimensions
-
Weight
520g
Weight
-
Weight
470g
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Product Description

The Keychron B31 is a compact 75% wireless keyboard designed for users who want a quiet, stable typing experience with versatile connectivity. It suits office workers, students, or anyone needing a low-noise keyboard that works seamlessly across multiple devices. Its scissor-switch keys offer a different feel from mechanical switches, focusing on smoothness and silence rather than tactile feedback or key swapping.

Typing Experience

The B31 uses an enhanced scissor mechanism that is taller than standard designs, providing more stable and accurate keystrokes. Keys come fully pre-lubed to reduce friction, resulting in a smooth and very quiet typing feel. This makes it suitable for shared spaces or late-night use. Keycaps are not replaceable, which limits customization options. The keyboard supports key remapping and macros through its web-based launcher app.

Connectivity

This keyboard offers three connection modes: 2.4 GHz wireless with a plug-and-play receiver, Bluetooth 5.2 for multi-device use, and wired USB-C for stable, low-latency connections and charging. Switching between devices and connection types is straightforward, making it flexible for various setups.

Compatibility and Customization

The B31 supports Windows and macOS layouts, with a toggle to switch between systems and separate keymaps for each. Its configuration software works on macOS, Windows, and Linux, allowing users to customize key functions and shortcuts. Multimedia and function keys can be toggled via a shortcut for convenience.

Build and Ergonomics

The keyboard has an ABS plastic case and keycaps, which keeps it lightweight but less durable than metal alternatives. Adjustable typing angles help reduce wrist fatigue during long sessions. The slightly taller keycaps also contribute to a more comfortable and stable typing posture.

Trade-offs

  • No hot-swappable switches, limiting switch customization.
  • Non-replaceable ABS keycaps may wear faster and limit personalization.
  • No backlighting, which may be a drawback in low-light environments.
  • Bluetooth polling rate is lower than 2.4 GHz and wired modes, which might affect responsiveness in fast typing or gaming.

Frequently Asked Questions (FAQ)

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