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Head to head · Prices checked Nov 7, 2026

Infiverse Infi75 vs Keychron B31

Get the Infiverse Infi75 for the 3,750 mAh battery.

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Quick verdict

Which one should you get?

Get the

Infiverse Infi75

Battery

Build quality in the bottom 35% of 75% boards under $150.

Rules this board out

  • Switches are soldered. Swapping them means soldering.

Get the

Keychron B31

Build quality in the bottom 20% of 75% boards under $50.

Rules this board out

  • Switches are soldered. Swapping them means soldering.

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.

Infiverse Infi75

Keychron B31

  • Battery

    3,750 mAh

    800 mAh

    A larger battery means fewer cables during the day

  • Case material

    Plastic

    ABS, Plastic

  • Switch options

    Linear

    Clicky, Linear, Tactile

  • Mount style

    Gasket Mount

    PCB Mount

  • Display

    TFT

    None

    A case display rather than a typing feature

KeebFinder scores

How we score
  • Infiverse Infi75
  • Keychron B31
Performance
57
59
Build quality
59
52
Productivity
45
69
Customizability
42
47
Portability
72
78

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

Infiverse Infi75 vs Keychron B31 specs

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

12 of 21 specs differ

Infiverse Infi75

Keychron B31

Typing & switches

Switch options

Linear
Clicky, Linear, Tactile

Mount style

Gasket Mount
PCB Mount

Layout

Layout size

75%
75%

Layout standard

ANSI
ANSI

Ergonomics

Standard
Standard

Display

TFT
None

Media keys

No
Yes

Connectivity & battery

Connection

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

Max polling rate

1,000 Hz
1,000 Hz

Battery

3,750 mAhBetter
800 mAh

USB-C

No
Yes

Build & materials

Case material

Plastic
ABS, Plastic

Plate material

Aluminum
—

Keycaps

PBT
ABS

Weight

1,100 g
520 g

Dimensions

46 x 321 x 140 mm
26 x 138 x 327 mm

Typing angle

—
5°

Backlight

None
None

Firmware & software

N-key rollover

Yes
Yes

Mac & Windows

No
Yes

Extras

Released

2023
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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