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Head to head · Prices checked Oct 21, 2026

Coolkiller CK98 vs REDMAGIC Nubia K100J

Get the REDMAGIC Nubia K100J for rapid trigger and the 4,000 mAh battery.

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

REDMAGIC Nubia K100J

  • Layout size

    98%

    96%

  • Rapid trigger

    No

    Yes

  • Battery

    3,750 mAh

    4,000 mAh

  • Case material

    Aluminum, Plastic

    Metal, Plastic

  • Switch options

    Linear, Silent, Tactile

    Linear

KeebFinder scores

How we score
  • Coolkiller CK98
  • REDMAGIC Nubia K100J
Performance
65
63
Build quality
65
57
Productivity
87
68
Customizability
73
74
Portability
56
52

What they share

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

Full specs

Coolkiller CK98 vs REDMAGIC Nubia K100J specs

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

14 of 23 specs differ

Coolkiller CK98

REDMAGIC Nubia K100J

Typing & switches

Switch options

Linear, Silent, Tactile
Linear

Rapid trigger

No
Yes

Hot-swappable

Yes
Yes

Mount style

Gasket Mount
Gasket Mount

Sound dampening

Yes
Yes

Screw-in stabilizers

Yes
No

Layout

Layout size

98%
96%

Layout standard

ANSI
ANSI

Ergonomics

Standard
Standard

Knob

No
Yes

Display

TFT
LED

Media keys

No
Yes

Connectivity & battery

Connection

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

Battery

3,750 mAh
4,000 mAhBetter

USB-C

Yes
Yes

Build & materials

Case material

Aluminum, Plastic
Metal, Plastic

Keycaps

ABS, PBT, PC
PBT

Weight

1,300 g
—

Dimensions

45 x 390 x 144 mm
—

Backlight

RGB, south-facing
RGB

Firmware & software

N-key rollover

Yes
No

Mac & Windows

Yes
No

Extras

Released

2022
2023

Where to buy

Compare prices

Live prices from the stores we track, cheapest in-stock offer first.

Lowest price across stores, Amazon excluded.

  • MechkeysCN

    In stock
    $235Visit
  • AmazonGlobal

    Check price
    Visit
  • WhatGeekCN

    Out of stock
    $194Visit
  • MechkeysCN

    In stock
    $169Visit
  • AmazonGlobal

    Check price
    ~$169Visit

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