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Head to head · Prices checked Nov 14, 2026

Redragon K688 Pro vs Royal Kludge R75

Get the Redragon K688 Pro for the 8,000 mAh battery. Get the Royal Kludge R75 for qmk and via.

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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.

Redragon K688 Pro

Royal Kludge R75

  • Battery

    8,000 mAh

    4,000 mAh

    A larger battery means fewer cables during the day

  • Display

    LED

    None

    A case display rather than a typing feature

  • Weight

    880 g

    680 g

    Heavier boards stay planted and lighter ones travel

  • QMK

    No

    Yes

    The deep option when you want to remap every key

  • VIA

    No

    Yes

    GUI remapping without compiling firmware

KeebFinder scores

How we score
  • Redragon K688 Pro
  • Royal Kludge R75
Performance
58
71
Build quality
68
78
Productivity
75
93
Customizability
73
88
Portability
63
79

What they share

  • Connection: Bluetooth, 2.4 GHz, Wired
  • Hot-swappable
  • Mount style: Gasket Mount
  • Knob
  • Sound dampening
  • Keycaps: PBT
See every spec side by side

Full specs

Redragon K688 Pro vs Royal Kludge R75 specs

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

7 of 23 specs differ

Redragon K688 Pro

Royal Kludge R75

Typing & switches

Switch options

—
Linear

Hot-swappable

Yes
Yes

Mount style

Gasket Mount
Gasket Mount

Sound dampening

Yes
Yes

Layout

Layout size

—
75%

Layout standard

ANSI
ANSI

Ergonomics

Standard
Standard

Knob

Yes
Yes

Display

LED
None

Connectivity & battery

Connection

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

Max polling rate

1,000 Hz
—

Battery

8,000 mAhBetter
4,000 mAh

USB-C

Yes
Yes

Build & materials

Case material

Plastic
—

Plate material

Steel
—

Keycaps

PBT
PBT

Weight

880 g
680 g

Dimensions

38 x 394 x 144 mm
42 x 323 x 42 mm

Backlight

RGB
RGB

Firmware & software

QMK

No
Yes

VIA

No
Yes

Mac & Windows

Yes
Yes

Extras

Released

2026
2024

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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