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Head to head · Prices checked Oct 28, 2026

Epomaker Galaxy100 Lite vs Keychron J4

Get the Epomaker Galaxy100 Lite for the 8,000 mAh battery and knob.

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Quick verdict

Which one should you get?

Get the

Epomaker Galaxy100 Lite

Battery

Build quality in the top 15% of 96% boards under $150.

Rules this board out

  • South-facing LEDs. Shine-through legends stay dark, and some sculpted keycaps can clip the LED.
  • Compact full-size layout. The numpad is present, the gaps of a full-size board are not.

Get the

Keychron J4

Build quality in the top 25% of 80% boards under $100.

Rules this board out

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

Epomaker Galaxy100 Lite

Keychron J4

  • Layout size

    96%

    80%

  • Battery

    8,000 mAh

    4,000 mAh

    A larger battery means fewer cables during the day

  • Case material

    Aluminum

    ABS

  • Switch options

    Clicky, Linear

    Clicky, Linear, Tactile

  • Knob

    Yes

    No

KeebFinder scores

How we score
  • Epomaker Galaxy100 Lite
  • Keychron J4
Performance
82
82
Build quality
83
72
Productivity
93
90
Customizability
89
89
Portability
65
73

What they share

  • Connection: Bluetooth, 2.4 GHz, Wired
  • Hot-swappable
  • Max polling rate: 1,000 Hz
  • QMK
  • VIA
  • Sound dampening
See every spec side by side

Full specs

Epomaker Galaxy100 Lite vs Keychron J4 specs

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

11 of 26 specs differ

Epomaker Galaxy100 Lite

Keychron J4

Typing & switches

Switch options

Clicky, Linear
Clicky, Linear, Tactile

Hot-swappable

Yes
Yes

Mount style

Gasket Mount
—

Sound dampening

Yes
Yes

Layout

Layout size

96%
80%

Layout standard

ANSI
ANSI

Ergonomics

Standard
Standard

Knob

Yes
No

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
1,000 Hz

Battery

8,000 mAhBetter
4,000 mAh

USB-C

Yes
Yes

Build & materials

Case material

Aluminum
ABS

Plate material

Plastic
Steel

Keycaps

PBT
PBT

Weight

1,660 g
870 g

Dimensions

32 x 405 x 138 mm
38 x 366 x 138 mm

Typing angle

7°
10°

Backlight

RGB, south-facing
RGB, north-facing

Firmware & software

QMK

Yes
Yes

VIA

Yes
Yes

N-key rollover

Yes
Yes

Mac & Windows

Yes
Yes

Extras

Released

2025
2025

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 J43 stores

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