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Head to head · Prices checked Oct 28, 2026

Epomaker LUMA100 vs Keychron B39

Get the Epomaker LUMA100 for hot-swappable and the 3,000 mAh battery. Get the Keychron B39 for knob.

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Quick verdict

Which one should you get?

Get the

Epomaker LUMA100

Hot-swappable

Build quality in the top 30% of 96% boards under $150.

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.
$119 at Epomaker

Get the

Keychron B39

Knob

Build quality in the bottom 15% of 96% boards under $100.

Rules this board out

  • Switches are soldered. Swapping them means soldering.
  • Low-profile switches and keycaps only. Standard MX keycaps will not fit.
$54 at Keychron

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 LUMA100

Keychron B39

  • Hot-swappable

    Yes

    No

    Switch changes without soldering

  • Battery

    3,000 mAh

    800 mAh

    A larger battery means fewer cables during the day

  • Ergonomics

    Standard

    Alice

  • Case material

    Aluminum

    ABS, Plastic

  • Knob

    No

    Yes

KeebFinder scores

How we score
  • Epomaker LUMA100
  • Keychron B39
Performance
68
48
Build quality
75
44
Productivity
84
74
Customizability
74
44
Portability
56
49

What they share

  • Layout size: 96%
  • Connection: Bluetooth, 2.4 GHz, Wired
  • Low profile
  • Max polling rate: 1,000 Hz
  • Keycaps: ABS
See every spec side by side

Full specs

Epomaker LUMA100 vs Keychron B39 specs

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

9 of 23 specs differ

Epomaker LUMA100

Keychron B39

Typing & switches

Switch options

—
Clicky, Linear, Tactile

Hot-swappable

Yes
No

Mount style

Gasket Mount
—

Low profile

Yes
Yes

Sound dampening

Yes
No

Layout

Layout size

96%
96%

Layout standard

ANSI
ANSI

Ergonomics

Standard
Alice

Knob

No
Yes

Display

None
None

Connectivity & battery

Connection

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

Max polling rate

1,000 Hz
1,000 Hz

Battery

3,000 mAhBetter
800 mAh

USB-C

Yes
Yes

Build & materials

Case material

Aluminum
ABS, Plastic

Plate material

Polycarbonate
—

Keycaps

ABS
ABS

Weight

620 g
680 g

Dimensions

26 x 371 x 129 mm
—

Backlight

RGB, north-facing
None

Firmware & software

VIA

Yes
No

Mac & Windows

Yes
Yes

Extras

Released

2026
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.

Epomaker LUMA1002 stores
Keychron B392 stores

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