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Head to head · Prices checked Oct 31, 2026

Keychron B31 vs LUMINKEY Lumino75

Get the LUMINKEY Lumino75 for hot-swappable and the 4,400 mAh battery.

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Quick verdict

Which one should you get?

Get the

Keychron B31

Build quality in the bottom 15% of 75% boards under $50.

Rules this board out

  • Switches are soldered. Swapping them means soldering.

Get the

LUMINKEY Lumino75

Hot-swappable

Build quality in the top 20% of 75% boards under $150.

Rules this board out

  • South-facing LEDs. Shine-through legends stay dark, and some sculpted keycaps can clip the LED.

What actually differs

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

LUMINKEY Lumino75

  • Hot-swappable

    No

    Yes

    Switch changes without soldering

  • Battery

    800 mAh

    4,400 mAh

    A larger battery means fewer cables during the day

  • Case material

    ABS, Plastic

    Aluminum

  • Mount style

    PCB Mount

    Gasket Mount

  • Display

    None

    Yes

    A case display rather than a typing feature

KeebFinder scores

How we score
  • Keychron B31
  • LUMINKEY Lumino75
Performance
59
68
Build quality
52
79
Productivity
69
84
Customizability
46
78
Portability
78
82

What they share

  • Layout size: 75%
  • Connection: Bluetooth, 2.4 GHz, Wired
  • Max polling rate: 1,000 Hz
See every spec side by side

Full specs

Keychron B31 vs LUMINKEY Lumino75 specs

Every tracked spec, side by side. Rows marked with a dot differ between the boards.

12 of 24 specs differ

Keychron B31

LUMINKEY Lumino75

Typing & switches

Switch options

Clicky, Linear, Tactile
—

Hot-swappable

No
Yes

Mount style

PCB Mount
Gasket Mount

Sound dampening

No
Yes

Layout

Layout size

75%
75%

Layout standard

ANSI
ANSI

Ergonomics

Standard
Standard

Display

None
Yes

Media keys

Yes
No

Connectivity & battery

Connection

Bluetooth, 2.4 GHz, Wired
Bluetooth, 2.4 GHz, Wired

Max polling rate

1,000 Hz
1,000 Hz

Battery

800 mAh
4,400 mAhBetter

USB-C

Yes
Yes

Build & materials

Case material

ABS, Plastic
Aluminum

Plate material

—
Polycarbonate

Keycaps

ABS
PBT

Weight

520 g
—

Dimensions

26 x 138 x 327 mm
—

Typing angle

5°
7°

Backlight

None
RGB, south-facing

Firmware & software

VIA

No
Yes

N-key rollover

Yes
No

Mac & Windows

Yes
Yes

Extras

Released

2026
2026

Where to buy

Compare prices

Live prices from the stores we track, cheapest in-stock offer first.

Prices in USD are converted to your currency and can change at any time. KeebFinder may earn a commission when you buy through these links, at no extra cost to you.

Lowest price across stores, Amazon excluded.

Keychron B314 stores

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