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Head to head · Prices checked Nov 7, 2026

Royal Kludge RK89 vs RK84

Choose the RK89 if you need a full numpad in a compact 85% frame, or the RK84 if you prioritize longer battery life and lighter weight.

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Quick verdict

Which one should you get?

Get the

Royal Kludge RK89

Build quality in the bottom 20% of 80% boards under $100.

If you want

  • Innovative 89-key layout brings a number pad to a compact 80% board.
  • Detachable frame allows users to customize the look with a floating key aesthetic.
  • Includes 4 replacement switches in the box for immediate experimentation.

Rules this board out

  • No numpad.

Get the

Royal Kludge RK84

Battery

Build quality in the bottom 20% of 75% boards under $100.

If you want

  • Larger 3750mAh battery provides excellent wireless endurance (up to 200 hours according to the vendor).
  • Lighter overall weight (803.5g) and smaller 75% footprint improve portability.
  • Factory sound dampening material included for a quieter typing experience out of the box.

Rules this board out

  • No numpad.

Bottom line

Your decision comes down to whether you need a number pad or better portability. Choose the RK89 if you must have a numpad in a compact wireless board, accept the trade-offs in weight and battery. Choose the RK84 if you want a lighter, longer-lasting keyboard for travel or gaming, and the 75% layout covers your key needs.

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.

Royal Kludge RK89

Royal Kludge RK84

  • Layout size

    80%

    75%

  • Battery

    1,850 mAh

    3,750 mAh

    A larger battery means fewer cables during the day

  • Switch options

    Clicky, Linear, Tactile

    Clicky, Linear, Silent, Tactile

  • Weight

    1,000 g

    803.5 g

    Heavier boards stay planted and lighter ones travel

  • Sound dampening

    No

    Yes

KeebFinder scores

How we score
  • Royal Kludge RK89
  • Royal Kludge RK84
Performance
63
62
Build quality
48
50
Productivity
66
77
Customizability
62
68
Portability
71
80

What they share

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

Best for

What will you mostly use it for?

For gaming and travel the RK84's lighter weight, larger battery, and higher polling rate give it a clear advantage. Office users will find the RK89's space-saving numpad a game changer for data work. Modders benefit from the RK84's factory sound dampening. For programming and content creation the choice is less clear, as each layout offers specific advantages depending on your workflow.

For gaming

Pick the Royal Kludge RK84

  • Lighter weight (803.5g) and smaller footprint are easier to manage on a cluttered desk for mouse movement.
  • 1000 Hz polling rate explicitly listed, which can offer more responsive input in fast-paced games.
  • Larger 3750mAh battery means fewer interruptions for charging during long sessions.

Full specs

Royal Kludge RK89 vs RK84 specs

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

9 of 21 specs differ

Royal Kludge RK89

Royal Kludge RK84

Typing & switches

Switch options

Clicky, Linear, Tactile
Clicky, Linear, Silent, Tactile

Hot-swappable

Yes
Yes

Sound dampening

No
Yes

Layout

Layout size

80%
75%

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

1,850 mAh
3,750 mAhBetter

USB passthrough

Yes
Yes

USB-C

Yes
Yes

Build & materials

Case material

—
Plastic

Keycaps

ABS
ABS, PBT

Weight

1,000 g
803.5 g

Dimensions

41 x 135 x 41 mm
41 x 315 x 125 mm

Typing angle

—
8°

Backlight

RGB
RGB

Firmware & software

Mac & Windows

Yes
Yes

Extras

Released

2022
2021

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.

FAQ

Royal Kludge RK89 vs RK84: your questions

The Royal Kludge RK89 is the clear choice for data entry thanks to its innovative 89-key layout that includes a dedicated number pad. The RK84 has a 75% layout without a numpad, meaning data entry will require using the top row number keys or an external pad.

The RK89 weighs 1000g, while the RK84 weighs 803.5g. That makes the RK89 roughly 200g heavier, which is noticeable when packing the keyboard in a bag for travel or commuting.

The Royal Kludge RK84 has a significantly larger 3750mAh battery compared to the RK89's 1850mAh battery. The vendor claims up to 200 hours of use with the RK84 under backlight off conditions, nearly double the RK89's estimated 60 hours.

Yes, both the RK89 and RK84 feature hot-swappable switch sockets, according to the vendor. This allows you to change switches without soldering, which is great for customizing the typing feel or trying different switch types.

Yes, both keyboards offer triple-mode connectivity: Bluetooth 5.0, a 2.4 GHz wireless connection via a dongle, and a wired USB-C connection. Both also include 2 built-in USB 2.0 pass-through ports.

The RK84 is the more gamer-friendly choice because it lists a 1000 Hz polling rate and includes factory sound dampening. Its lighter weight and smaller footprint also leave more room for mouse movement, and the larger battery means fewer charging interruptions during long sessions.

The vendor lists Windows/Mac/iOS/Android support for both keyboards. Linux compatibility is not explicitly stated, but the keyboards should function in wired mode on Linux. The customization software is noted to be Windows-only in the RK89 description.

The RK84 is offered with Clicky (Blue), Tactile (Brown), and Linear (Red) switch options based on the vendor description. The vendor also mentions a Silent switch option in some product variations.

According to the vendor, the RK89 package includes the keyboard, a 2.4 GHz receiver, a USB-C cable, a combined keycap and switch puller, a user manual, and 4 replacement switches. This is a generous accessory kit for the price.

The RK84 comes with sound dampening material already installed from the factory, which means you may not need to add foam or tape mod for a quieter experience. This makes it a better starting point for modders who want a pre-dampened platform.

The RK84 is more portable as it is lighter (803.5g vs 1000g) and has a smaller 75% footprint. It also has more than double the battery capacity, reducing the need to bring a charging cable for short trips.

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