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Head to head · Prices checked Oct 31, 2026

Coolkiller CK98 vs Keychron Q6 Ultra

Get the Keychron Q6 Ultra for the 4,000 mAh battery.

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Quick verdict

Which one should you get?

Get the

Coolkiller CK98

Build quality in the top 45% of 98% boards under $300.

Rules this board out

  • South-facing LEDs. Shine-through legends stay dark, and some sculpted keycaps can clip the LED.
  • No ISO layout. ISO-DE, UK, and other ISO variants are not offered.
  • Compact full-size layout. The numpad is present, the gaps of a full-size board are not.

Get the

Keychron Q6 Ultra

Battery

Build quality in the top 10% of 100% boards under $300.

Rules this board out

  • South-facing LEDs. Shine-through legends stay dark, and some sculpted keycaps can clip the LED.

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.

Coolkiller CK98

Keychron Q6 Ultra

  • Layout size

    98%

    100%

  • Battery

    3,750 mAh

    4,000 mAh

    A larger battery means fewer cables during the day

  • Case material

    Aluminum, Plastic

    Aluminum

  • Switch options

    Linear, Silent, Tactile

    Clicky, Linear, Tactile

  • Mount style

    Gasket Mount

    Gasket Mount, Plate Mount

KeebFinder scores

How we score
  • Coolkiller CK98
  • Keychron Q6 Ultra
Performance
65
90
Build quality
65
80
Productivity
87
93
Customizability
73
83
Portability
56
55

What they share

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

Full specs

Coolkiller CK98 vs Keychron Q6 Ultra specs

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

14 of 26 specs differ

Coolkiller CK98

Keychron Q6 Ultra

Typing & switches

Switch options

Linear, Silent, Tactile
Clicky, Linear, Tactile

Hot-swappable

Yes
Yes

Mount style

Gasket Mount
Gasket Mount, Plate Mount

Sound dampening

Yes
Yes

Screw-in stabilizers

Yes
Yes

Layout

Layout size

98%
100%

Layout standard

ANSI
ANSI, ISO, ISO-DE, ISO-ES, ISO-FR

Ergonomics

Standard
Standard

Knob

No
Yes

Display

TFT
None

Media keys

No
Yes

Connectivity & battery

Connection

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

Max polling rate

—
8,000 Hz

Battery

3,750 mAh
4,000 mAhBetter

USB-C

Yes
Yes

Build & materials

Case material

Aluminum, Plastic
Aluminum

Plate material

—
Polycarbonate

Keycaps

ABS, PBT, PC
PBT

Weight

1,300 g
2,238 g

Dimensions

45 x 390 x 144 mm
31 x 446 x 137 mm

Typing angle

—
5°

Backlight

RGB, south-facing
RGB, south-facing

Firmware & software

QMK

No
Yes

N-key rollover

Yes
Yes

Mac & Windows

Yes
Yes

Extras

Released

2022
2026

For EU buyers

ISO layouts by store

Which stores sell ISO-DE, UK, and the other regional layouts.

Coolkiller CK98

No ISO layout at the stores we track.

Keychron Q6 Ultra

  • Input Gear

    ISO-DE

    Out of stockShips to you

  • Keychron (DE)

    ISO-DE, ISO-FR, ISO-ES

    In stockDoes not ship to you

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.

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