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Head to head · Prices checked Nov 7, 2026

Bat Knight BK75 vs Royal Kludge S104

Get the Royal Kludge S104 for the 8,000 mAh battery.

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Quick verdict

Which one should you get?

Get the

Bat Knight BK75

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

Rules this board out

  • No numpad.

Get the

Royal Kludge S104

Battery

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

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.

Bat Knight BK75

Royal Kludge S104

  • Layout size

    75%

    100%

  • Battery

    4,000 mAh

    8,000 mAh

    A larger battery means fewer cables during the day

  • Switch options

    Linear

    Linear, Silent

  • Mount style

    Gasket Mount

    Top Mount

  • Display

    None

    TFT

    A case display rather than a typing feature

KeebFinder scores

How we score
  • Bat Knight BK75
  • Royal Kludge S104
Performance
79
67
Build quality
60
63
Productivity
62
84
Customizability
67
74
Portability
75
63

What they share

  • Connection: Bluetooth, 2.4 GHz, Wired
  • Hot-swappable
  • Knob
See every spec side by side

Full specs

Bat Knight BK75 vs Royal Kludge S104 specs

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

12 of 21 specs differ

Bat Knight BK75

Royal Kludge S104

Typing & switches

Switch options

Linear
Linear, Silent

Hot-swappable

Yes
Yes

Mount style

Gasket Mount
Top Mount

Sound dampening

No
Yes

Layout

Layout size

75%
100%

Layout standard

ANSI
ANSI

Ergonomics

Standard
Standard

Knob

Yes
Yes

Display

None
TFT

Connectivity & battery

Connection

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

Max polling rate

1,000 Hz
—

Battery

4,000 mAh
8,000 mAhBetter

USB-C

No
Yes

Build & materials

Case material

Plastic
—

Keycaps

PBT
ABS, PBT

Weight

1,400 g
1,520 g

Dimensions

46 x 327 x 150 mm
43 x 422 x 138 mm

Backlight

RGB
RGB

Firmware & software

N-key rollover

Yes
No

Mac & Windows

Yes
Yes

Extras

Released

2023
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.

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