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Head to head · Prices checked Nov 10, 2026

Keychron J1 vs Leopold Alchemie

Get the Leopold Alchemie for the 4,000 mAh battery.

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Quick verdict

Which one should you get?

Get the

Keychron J1

Build quality in the top 40% of 75% boards under $100.

Rules this board out

  • Low-profile switches and keycaps only. Standard MX keycaps will not fit.
  • North-facing LEDs. Cherry-profile keycaps can hit the switch housing.
  • No numpad.

Get the

Leopold Alchemie

Battery

Build quality in the top 10% of 100% boards under $200.

Rules this board out

  • North-facing LEDs. Cherry-profile keycaps can hit the switch housing.

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 J1

Leopold Alchemie

  • Layout size

    75%

    100%

  • Battery

    2,000 mAh

    4,000 mAh

    A larger battery means fewer cables during the day

  • Low profile

    Yes

    No

  • Case material

    ABS

    Aluminum

  • Switch options

    Clicky, Linear, Tactile

    Clicky, Silent

KeebFinder scores

How we score
  • Keychron J1
  • Leopold Alchemie
Performance
82
80
Build quality
71
79
Productivity
89
76
Customizability
86
86
Portability
80
52

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 J1 vs Leopold Alchemie specs

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

8 of 26 specs differ

Keychron J1

Leopold Alchemie

Typing & switches

Switch options

Clicky, Linear, Tactile
Clicky, Silent

Hot-swappable

Yes
Yes

Mount style

—
Top Mount

Low profile

Yes
No

Sound dampening

Yes
Yes

Layout

Layout size

75%
100%

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

2,000 mAh
4,000 mAhBetter

USB-C

Yes
Yes

Build & materials

Case material

ABS
Aluminum

Plate material

—
Aluminum

Keycaps

PBT
PBT

Weight

661 g
—

Dimensions

23 x 327 x 144 mm
—

Typing angle

19°
—

Backlight

RGB, north-facing
RGB, north-facing

Firmware & software

QMK

Yes
Yes

VIA

Yes
Yes

N-key rollover

Yes
Yes

Mac & Windows

Yes
No

Extras

Released

2025
2026

Where to buy

Compare prices

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

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Lowest price across stores, Amazon excluded.

Keychron J13 stores

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