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Compare Keychron B31 vs Neo One of Zero Si75 HE Differences Side by Side

This comparison is for buyers deciding between a versatile wireless budget board and a specialized high-performance wired option. Both are 75% keyboards, but they target opposite ends of the market. The Keychron B31 prioritizes multi-device connectivity and quiet typing at a lower cost. The Neo Si75 HE focuses on cutting-edge magnetic switches, extreme responsiveness, and deep customization for a premium. The decision hinges on whether wireless convenience or competitive gaming features matter more.

Keychron B31 Wireless Keyboard
80
ONEofZERO Si75 HE Hotswap RGB Keyboard

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  • Has Linear, Tactile, Clicky switch options
  • Provides dedicated media keys
  • Features N-key rollover
  • Supports Bluetooth, 2.4 GHz, Wired, Wireless connectivity
  • 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
  • Features ABS keycaps
  • Offers No RGB lighting
  • Has Magnetic switch options
  • Supports hot-swappable switches
  • Comes with a knob
  • Utilizes Hall effect sensors
  • Enables rapid trigger functionality
  • Includes screw-in stabilizers
  • Has built-in sound dampening
  • Uses a Gasket Mount mounting style
  • Supports Wired, Wired only connectivity
  • Runs at a 8000 Hz polling rate
  • Made with a ABS, Polycarbonate case
  • Features PBT keycaps
  • Offers Yes, Rgb, South-face, Rgb South-face RGB lighting
Scores
  • Performance: 57.1
  • Build Quality: 41.9
  • Productivity: 67
  • Customizability: 45.5
  • Portability: 78.1
Scores
  • Performance: 95.3
  • Build Quality: 69.6
  • Productivity: 90.7
  • Customizability: 74.7
  • Portability: 65.3
Name
Keychron B31
Name
Neo One of Zero Si75 HE
Release year
2026
Release year
2026
Switch Options
Linear, Tactile, Clicky
Switch Options
Magnetic
Profile
Normal Profile
Profile
Normal Profile
Hot Swappable
 
Hot Swappable
 
Layout Size
75%
Layout Size
75%
Layout Standard
ANSI
Layout Standard
ANSI
Layout Ergonomics
Normal
Layout Ergonomics
Normal
Knob Support
 
Knob Support
 
Display Support
 
Display Support
 
Mac/Win Support
 
Mac/Win Support
 
Multi-Media Keys
 
Multi-Media Keys
 
USB-C
 
USB-C
 
USB passthrough
 
USB passthrough
 
Connection
Bluetooth, 2.4 GHz, Wired, Wireless
Connection
Wired, Wired only
Polling Rate
1000 Hz
Polling Rate
8000 Hz
Battery capacity
800 mAh
Battery capacity
-
Hall Effect Support
 
Hall Effect Support
 
QMK Support
 
QMK Support
 
VIA Support
 
VIA Support
 
VIAL Support
 
VIAL Support
 
N-Key Rollover
 
N-Key Rollover
 
Rapid Trigger
 
Rapid Trigger
 
Mount Style
-
Mount Style
Gasket Mount
Screw in Stabilizers
 
Screw in Stabilizers
 
Sound Dampening
 
Sound Dampening
 
Backlight
 
Backlight
 
Rgb, South-face
Case Colors
Case Colors
Case Material
ABS, Plastic
Case Material
ABS, Polycarbonate
Keycaps Material
ABS
Keycaps Material
PBT
Dimensions
26 x 138 x 327 mm
Dimensions
-
Weight
520g
Weight
-
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Pros and Trade-offs

Your primary need dictates the choice. If you require a single, portable keyboard for multiple devices and quiet environments, the Keychron B31's wireless versatility is compelling. If your priority is maximizing in-game performance, exploring advanced switch customization, or building a premium typing experience, the Neo One of Zero Si75 HE's wired, feature-rich design is the definitive option. Consider the significant price difference as an investment in specialized gaming technology versus general-purpose utility.

Keychron B31

  • +Tri-mode wireless connectivity with Bluetooth 5.2, 2.4GHz, and wired USB-C.
  • +Long battery life rated up to 320 hours on an 800mAh battery.
  • +Quiet, pre-lubed scissor-switch mechanism designed for silent typing.
  • +Includes adjustable typing angles (5°, 6.5°, 9°) for ergonomics.
  • +Web-based Keychron Launcher for key remapping across operating systems.
  • −Keycaps are non-replaceable ABS, according to the manufacturer's specs.
  • −The keyboard is not hot-swappable, limiting switch customization.
  • −No RGB or backlighting of any kind.
  • −Uses a 1000 Hz polling rate, which is standard but lower than gaming-focused boards.

Neo One of Zero Si75 HE

  • +High-performance magnetic (Hall Effect) switches with adjustable actuation (0.2-3.8mm) and rapid trigger.
  • +Extremely high 8000 Hz polling rate with 32K scan rate for minimal latency.
  • +Hot-swappable PCB, gasket mount, and multiple sound-dampening foam layers included.
  • +Comes with durable PBT keycaps, screw-in stabilizers, and a comprehensive accessory kit.
  • +Features south-facing RGB lighting and supports analog input mode for gaming.
  • −Wired-only connectivity, lacking Bluetooth or 2.4GHz wireless options.
  • −Higher price point compared to budget wireless keyboards.
  • −The frosted polycarbonate/ABS case may show wear or fingerprints more easily.

Which Keyboard Is Better for Your Needs?

The Neo Si75 HE dominates for gaming and modding due to its high-speed magnetic switches and open design. The Keychron B31 is the clear choice for office and travel, thanks to its wireless operation and quiet profile. For programming, the Neo's hot-swap capability and PBT keycaps give it an edge, while content creation is a draw with both offering useful, but different, macro and media features.

GamingNeo One of Zero Si75 HE
  • •The Neo Si75 HE has an 8000 Hz polling rate and 32K scan rate for lower latency.
  • •It features magnetic switches with adjustable actuation points, rapid trigger, and analog mode for precise control.
  • •The gasket mount and sound dampening foams may provide a more consistent typing feel.
OfficeKeychron B31
  • •The Keychron B31 offers tri-mode connectivity (Bluetooth 5.2, 2.4GHz, wired) for easy switching between devices.
  • •Its manufacturer description highlights silent typing with pre-lubed keys and a scissor mechanism, suitable for shared spaces.
  • •It has an 800mAh battery rated for up to 320 hours of wireless use, reducing charging frequency.
ProgrammingNeo One of Zero Si75 HE
  • •The Neo Si75 HE includes a hot-swappable magnetic PCB, allowing easy switch changes without soldering.
  • •It comes with PBT keycaps, which are more durable and resistant to shine than the B31's ABS keycaps.
  • •The programmable web launcher supports key remapping and macros for coding shortcuts.
TravelKeychron B31
  • •The Keychron B31 is wireless and includes a 2.4GHz receiver with magnetic storage on the keyboard.
  • •At 520g, it is lighter than many wired boards, though the Neo's exact weight is not specified for comparison.
  • •Its Bluetooth connectivity allows use with laptops and tablets without occupying a USB port.
ModdingNeo One of Zero Si75 HE
  • •The Neo Si75 HE is hot-swappable and features a gasket mount design with interchangeable silicone modules for tuning.
  • •It includes multiple sound dampening layers (porous foam, PU foam) and screw-in stabilizers from the factory.
  • •The keyboard comes with a keycap and switch puller, screwdriver, and hex key for disassembly.
Content CreationTie
  • •The Keychron B31 offers multimedia shortcut keys and wireless convenience for a clutter-free desk setup.
  • •The Neo Si75 HE provides RGB backlighting and a knob (as per its 'knob support' feature) for potential media control.
  • •Both support web-based configuration software (Keychron Launcher / One of Zero Web Launcher) for macro programming.

Frequently Asked Questions (FAQ)

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