Not sure which keyboard to choose? Try the Keyboard Finder now!

Head to head · Prices checked Oct 21, 2026

Coolkiller PolarBear vs Womier SK30 Kanagawa Numpad

Get the Womier SK30 Kanagawa Numpad for the 3,000 mAh battery and knob.

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 PolarBear

Womier SK30 Kanagawa Numpad

  • Connection

    Wired, Wireless

    Bluetooth, 2.4 GHz, Wired

  • Battery

    1,500 mAh

    3,000 mAh

  • Case material

    Plastic

    ABS

  • Knob

    No

    Yes

  • Display

    None

    TFT

KeebFinder scores

How we score
  • Coolkiller PolarBear
  • Womier SK30 Kanagawa Numpad
Performance
60
76
Build quality
61
72
Productivity
72
76
Customizability
55
80
Portability
87
90

What they share

  • Layout size: Numpad
  • Hot-swappable
  • Switch options: Linear
  • Mount style: Gasket Mount
  • Keycaps: PBT
See every spec side by side

Full specs

Coolkiller PolarBear vs Womier SK30 Kanagawa Numpad specs

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

8 of 22 specs differ

Coolkiller PolarBear

Womier SK30 Kanagawa Numpad

Typing & switches

Switch options

Linear
Linear

Hot-swappable

Yes
Yes

Mount style

Gasket Mount
Gasket Mount

Sound dampening

Yes
No

Layout

Layout size

Numpad
Numpad

Layout standard

ANSI
ANSI

Ergonomics

Standard
Standard

Knob

No
Yes

Display

None
TFT

Connectivity & battery

Connection

Wired, Wireless
Bluetooth, 2.4 GHz, Wired

Max polling rate

—
1,000 Hz

Battery

1,500 mAh
3,000 mAhBetter

USB-C

Yes
Yes

Build & materials

Case material

Plastic
ABS

Plate material

—
Polycarbonate

Keycaps

PBT
PBT

Weight

296 g
—

Dimensions

30 x 65 x 84 mm
—

Backlight

White
RGB, south-facing

Firmware & software

N-key rollover

Yes
Yes

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.

  • AmazonGlobal

    Check price
    ~$69Visit
  • WhatGeekCN

    Out of stock
    $69Visit
  • MKUS

    In stock
    $49Visit
  • AmazonGlobal

    Check price
    ~$49Visit

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.

Still torn?

Answer a few quick questions and the keyboard finder ranks 2,000+ boards by how you will actually use yours.