Keychron B31 vs Neo One of Zero Si75 HEWireless Budget vs Wired Performance
Choose the Keychron B31 for wireless flexibility on a budget, or the Neo Si75 HE for high-end wired gaming performance and customization.
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Which one should you get?
Get the
Keychron B31
Wireless Budget
Build quality in the bottom 20% of 75% boards under $50.
- 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.
- Switches are soldered. Swapping them means soldering.
Get the
Neo One of Zero Si75 HE
Wired Performance
Build quality in the top 45% of 75% boards under $150.
- 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.
- Magnetic switches only. Standard MX switches will not fit.
- South-facing LEDs. Shine-through legends stay dark, and some sculpted keycaps can clip the LED.
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.
The differences that matter
Skip the 40-row spec sheet. These are the specs that change how each board feels, sounds, and fits your desk.
Keychron B31
Neo One of Zero Si75 HE
Hall effect (magnetic)
No
Yes
Adjustable actuation helps in games and not in normal typing
Rapid trigger
No
Yes
Faster resets help in games and not in normal typing
Connection
Bluetooth, 2.4 GHz, Wired
Wired
Wireless for several devices and wired for lower latency
Hot-swappable
No
Yes
Switch changes without soldering
Max polling rate
1,000 Hz
8,000 Hz
Higher polling helps competitive FPS and does nothing for typing
- Keychron B31
- Neo One of Zero Si75 HE
- Performance
- 5995
- Build quality
- 5270
- Productivity
- 6991
- Customizability
- 4774
- Portability
- 7865
- Layout size: 75%
What will you mostly use it for?
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.
Pick the Neo 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.
Keychron B31 vs Neo One of Zero Si75 HE specs
Every tracked spec, side by side. Rows marked with a dot differ between the boards.
15 of 27 specs differ
Keychron B31
Neo One of Zero Si75 HE
Switch options
Hall effect (magnetic)
Rapid trigger
Hot-swappable
Mount style
Sound dampening
Screw-in stabilizers
Layout size
Layout standard
Ergonomics
Knob
Display
Media keys
Connection
Max polling rate
Battery
USB-C
Case material
Plate material
Keycaps
Weight
Dimensions
Typing angle
Backlight
N-key rollover
Mac & Windows
Released
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Keychron B31 vs Neo One of Zero Si75 HE: your questions
No, the Keychron B31 is not hot-swappable. The manufacturer's specifications list 'Hot-swappable: No'. Its switches are soldered in place and cannot be easily changed by the user.
According to the Keychron specification sheet, the keycaps on the B31 are not replaceable. The listing explicitly states 'Keycaps are not replaceable.' alongside the ABS keycap material.
The Neo One of Zero Si75 HE has a maximum polling rate of 8000 Hz, as stated in its product characteristics. This is significantly higher than the standard 1000 Hz found on many keyboards.
No, the Neo Si75 HE is a wired-only keyboard. Its connectivity is listed as 'Wired;Wired only' in the metadata, and the vendor description does not mention any Bluetooth or 2.4GHz functionality.
The Neo Si75 HE uses Keychron Ultra-Fast Lime magnetic (Hall Effect) switches. These are linear switches with a 30g actuation force that use magnets and sensors instead of physical metal contacts.
The Keychron B31 has an 800mAh rechargeable battery. The manufacturer claims it can deliver up to 320 hours of continuous use on a single charge based on lab tests, though actual usage may vary.
According to the vendor, the Neo Si75 HE includes the keyboard, 12 colorful keycaps, two pairs of silicone adjustment feet, a USB-C cable, a USB-A to USB-C adapter, a keycap and switch puller, a screwdriver, and a hex key.
The Keychron B31 is marketed for silent typing. Its description highlights a scissor mechanism and fully pre-lubed keys designed for an 'ultra-quiet typing experience,' making it more suitable for shared office spaces than a keyboard with unspecified acoustic properties.
Yes. The vendor description for the Neo Si75 HE states its magnetic switches allow for adjustable actuation points from 0.2 mm to 3.8 mm with 0.1 mm sensitivity, which can be configured via its web launcher software.
Yes, both keyboards list Mac and Windows support. The Keychron B31 has a system toggle switch, and the Neo Si75 HE allows switching between systems with a keyboard shortcut.
The Neo Si75 HE uses a gasket mount design. The vendor description notes it includes colorful, interchangeable silicone modules that contain the gasket strips for this mounting style.
The Neo One of Zero Si75 HE has south-facing RGB LED backlighting. The Keychron B31 is listed as 'Non-Backlit' and does not have any form of lighting.
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