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Head to head · Prices checked Oct 23, 2026

AULA M75 vs Keychron J2

Get the AULA M75 for the 8,000 mAh battery. Get the Keychron J2 for qmk and via.

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 M75

Keychron J2

  • Battery

    8,000 mAh

    3,750 mAh

  • QMK

    No

    Yes

  • VIA

    No

    Yes

  • Sound dampening

    No

    Yes

  • Media keys

    No

    Yes

KeebFinder scores

How we score
  • AULA M75
  • Keychron J2
Performance
48
70
Build quality
54
71
Productivity
50
74
Customizability
52
86
Portability
85
73

What they share

  • Layout size: 75%
  • Connection: Bluetooth, 2.4 GHz, Wired
  • Hot-swappable
  • Keycaps: PBT
See every spec side by side

From real owners

What owners say

Ratings and quotes collected from verified store reviews, including the critical ones.

AULA M75

No owner reviews collected yet.

Keychron J2

4.4

11 owner reviews

Praise
“I absolutely love this keyboard. It sounds amazing and the red switches are so smooth in feel. The colours are also great.”
WojciechVerified buyer· via Keychron
Critique
“The keyboard is nice, but it took over 3 weeks of shipping to arrive. On their website it says they deliver in a week or under to the US.”
JaydenVerified buyer· via Keychron

Full specs

AULA M75 vs Keychron J2 specs

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

6 of 20 specs differ

AULA M75

Keychron J2

Typing & switches

Switch options

—
Clicky, Linear, Tactile

Hot-swappable

Yes
Yes

Mount style

Gasket Mount
—

Sound dampening

No
Yes

Layout

Layout size

75%
75%

Layout standard

ANSI
ANSI

Ergonomics

Standard
Standard

Display

None
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

8,000 mAhBetter
3,750 mAh

Build & materials

Case material

Aluminum
—

Plate material

FR4, Plastic
—

Keycaps

PBT
PBT

Weight

1,735 g
—

Backlight

RGB
RGB

Firmware & software

QMK

No
Yes

VIA

No
Yes

Extras

Released

2024
2025

Where to buy

Compare prices

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

Lowest price across stores, Amazon excluded.

AULA M752 stores
  • MechkeysCN

    In stock
    $99Visit
  • AmazonGlobal

    Check price
    ~$99Visit
Keychron J23 stores
  • KeychronHK

    In stock
    $59Visit
  • Keychron (DE)DE

    In stock
    $105Visit
  • AmazonGlobal

    Check price
    ~$59Visit

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