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Head to head · Prices checked Oct 21, 2026

Keychron J4 vs Yunzii AL68

Get the Yunzii AL68 for the 6,000 mAh battery and knob.

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 J4

Yunzii AL68

  • Layout size

    80%

    65%

  • Battery

    4,000 mAh

    6,000 mAh

  • Switch options

    Clicky, Linear, Tactile

    Linear

  • Knob

    No

    Yes

  • Plate material

    Steel

    Polycarbonate

KeebFinder scores

How we score
  • Keychron J4
  • Yunzii AL68
Performance
70
61
Build quality
71
77
Productivity
74
89
Customizability
86
88
Portability
66
94

What they share

  • Connection: Bluetooth, 2.4 GHz, Wired
  • Hot-swappable
  • QMK
  • VIA
  • Sound dampening
  • Keycaps: PBT
See every spec side by side

Full specs

Keychron J4 vs Yunzii AL68 specs

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

11 of 25 specs differ

Keychron J4

Yunzii AL68

Typing & switches

Switch options

Clicky, Linear, Tactile
Linear

Hot-swappable

Yes
Yes

Mount style

—
Gasket Mount

Sound dampening

Yes
Yes

Layout

Layout size

80%
65%

Layout standard

ANSI
ANSI

Ergonomics

Standard
Standard

Knob

No
Yes

Display

None
None

Media keys

Yes
No

Connectivity & battery

Connection

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

Max polling rate

1,000 Hz
—

Battery

4,000 mAh
6,000 mAhBetter

USB-C

No
Yes

Build & materials

Case material

—
Aluminum

Plate material

Steel
Polycarbonate

Keycaps

PBT
PBT

Weight

—
1,205 g

Dimensions

—
40 x 114 x 319 mm

Backlight

RGB, north-facing
RGB, south-facing

Firmware & software

QMK

Yes
Yes

VIA

Yes
Yes

N-key rollover

No
Yes

Mac & Windows

No
Yes

Extras

Released

2025
2024

Where to buy

Compare prices

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

Lowest price across stores, Amazon excluded.

Keychron J42 stores
  • KeychronHK

    In stock
    $59Visit
  • AmazonGlobal

    Check price
    Visit
Yunzii AL683 stores
  • MechkeysCN

    In stock
    $98Visit
  • AmazonGlobal

    Check price
    Visit
  • YunziiCN

    Out of stock
    $64Visit

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