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Head to head · Prices checked Oct 21, 2026

Lofree Polar Moss vs REDMAGIC Nubia K100J

Get the REDMAGIC Nubia K100J for rapid trigger 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.

Lofree Polar Moss

REDMAGIC Nubia K100J

  • Rapid trigger

    No

    Yes

  • Case material

    ABS

    Metal, Plastic

  • Knob

    No

    Yes

  • Display

    None

    LED

  • Keycaps

    PBT, PC

    PBT

KeebFinder scores

How we score
  • Lofree Polar Moss
  • REDMAGIC Nubia K100J
Performance
61
63
Build quality
61
57
Productivity
69
68
Customizability
56
74
Portability
57
52

What they share

  • Connection: Bluetooth, 2.4 GHz, Wired
  • Hot-swappable
  • Battery: 4,000 mAh
  • Switch options: Linear
  • Mount style: Gasket Mount
  • Sound dampening
See every spec side by side

Full specs

Lofree Polar Moss vs REDMAGIC Nubia K100J specs

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

10 of 23 specs differ

Lofree Polar Moss

REDMAGIC Nubia K100J

Typing & switches

Switch options

Linear
Linear

Rapid trigger

No
Yes

Hot-swappable

Yes
Yes

Mount style

Gasket Mount
Gasket Mount

Sound dampening

Yes
Yes

Layout

Layout size

—
96%

Layout standard

ANSI
ANSI

Ergonomics

Standard
Standard

Knob

No
Yes

Display

None
LED

Media keys

No
Yes

Connectivity & battery

Connection

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

Max polling rate

1,000 Hz
—

Battery

4,000 mAh
4,000 mAh

USB-C

Yes
Yes

Build & materials

Case material

ABS
Metal, Plastic

Keycaps

PBT, PC
PBT

Weight

972 g
—

Dimensions

44 x 325 x 161 mm
—

Backlight

White
RGB

Firmware & software

N-key rollover

Yes
No

Mac & Windows

Yes
No

Extras

Released

2026
2023

Where to buy

Compare prices

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

  • LofreeHK

    In stock
    $199Visit
  • AmazonGlobal

    Check price
    ~$199Visit
  • MechkeysCN

    In stock
    $169Visit
  • AmazonGlobal

    Check price
    ~$169Visit

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