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Head to head · Prices checked Nov 7, 2026

AULA F98 PRO vs Keychron B31

Get the AULA F98 PRO for the 4,000 mAh battery and knob.

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Quick verdict

Which one should you get?

Get the

AULA F98 PRO

Battery

Build quality in the bottom 25% of 98% boards under $100.

Rules this board out

  • Switches are soldered. Swapping them means soldering.
  • Compact full-size layout. The numpad is present, the gaps of a full-size board are not.

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.
  • No numpad.

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.

AULA F98 PRO

Keychron B31

  • Layout size

    98%

    75%

  • Battery

    4,000 mAh

    800 mAh

    A larger battery means fewer cables during the day

  • Mount style

    Gasket Mount

    PCB Mount

  • Knob

    Yes

    No

  • Display

    LCD

    None

    A case display rather than a typing feature

KeebFinder scores

How we score
  • AULA F98 PRO
  • Keychron B31
Performance
48
59
Build quality
50
52
Productivity
75
69
Customizability
58
47
Portability
50
78

What they share

  • Connection: Bluetooth, 2.4 GHz, Wired
See every spec side by side

Full specs

AULA F98 PRO vs Keychron B31 specs

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

11 of 22 specs differ

AULA F98 PRO

Keychron B31

Typing & switches

Switch options

—
Clicky, Linear, Tactile

Mount style

Gasket Mount
PCB Mount

Sound dampening

Yes
No

Layout

Layout size

98%
75%

Layout standard

ANSI
ANSI

Ergonomics

Standard
Standard

Knob

Yes
No

Display

LCD
None

Media keys

No
Yes

Connectivity & battery

Connection

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

Max polling rate

—
1,000 Hz

Battery

4,000 mAhBetter
800 mAh

USB-C

Yes
Yes

Build & materials

Case material

—
ABS, Plastic

Keycaps

PC
ABS

Weight

—
520 g

Dimensions

—
26 x 138 x 327 mm

Typing angle

—
5°

Backlight

RGB
None

Firmware & software

N-key rollover

No
Yes

Mac & Windows

Yes
Yes

Extras

Released

2024
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.

AULA F98 PRO2 stores
Keychron B314 stores

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