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Head to head · Prices checked Oct 21, 2026

Keychron K4 HE vs REDMAGIC Nubia K100J

Get the Keychron K4 HE for hall effect.

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.

Keychron K4 HE

REDMAGIC Nubia K100J

  • Hall effect (magnetic)

    Yes

    No

  • Connection

    Bluetooth, Wired, 2.4 GHz

    Bluetooth, 2.4 GHz, Wired

  • Case material

    ABS, Aluminum, Plastic, Wood

    Metal, Plastic

  • Switch options

    Clicky, Linear, Magnetic, Tactile

    Linear

  • Mount style

    Tray Mount

    Gasket Mount

KeebFinder scores

How we score
  • Keychron K4 HE
  • REDMAGIC Nubia K100J
Performance
92
63
Build quality
87
57
Productivity
94
68
Customizability
89
74
Portability
56
52

What they share

  • Layout size: 96%
  • Rapid trigger
  • Hot-swappable
  • Battery: 4,000 mAh
  • Sound dampening
  • Keycaps: PBT
See every spec side by side

From real owners

What owners say

Ratings and quotes collected from verified store reviews, including the critical ones.

Keychron K4 HE

4.2

10 owner reviews

Praise
“So far it have met my expectations for the use i wanted it for, had a small hic up the first day i started ysing it but got easily resolved with the provided user manual”
PabloVerified buyer· via Keychron
Critique
“The keyboard is smooth to the touch, and has the nice feel. For me, it's almost an ideal keyboard but the one thing that gets me and it's a hard issue is that when connected, it takes away input from my controller when I game, especially for live service…”
Vick L.Verified buyer· via Keychron

REDMAGIC Nubia K100J

No owner reviews collected yet.

Full specs

Keychron K4 HE vs REDMAGIC Nubia K100J specs

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

16 of 29 specs differ

Keychron K4 HE

REDMAGIC Nubia K100J

Typing & switches

Switch options

Clicky, Linear, Magnetic, Tactile
Linear

Hall effect (magnetic)

Yes
No

Rapid trigger

Yes
Yes

Hot-swappable

Yes
Yes

Mount style

Tray Mount
Gasket Mount

Sound dampening

Yes
Yes

Screw-in stabilizers

Yes
No

Layout

Layout size

96%
96%

Layout standard

ANSI, ISO, ISO-CH, ISO-DE, ISO-ES, ISO-FR, ISO-Nordic, ISO-SW, ISO-UK
ANSI

Ergonomics

Standard
Standard

Knob

No
Yes

Display

None
LED

Media keys

No
Yes

Connectivity & battery

Connection

Bluetooth, Wired, 2.4 GHz
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, Aluminum, Plastic, Wood
Metal, Plastic

Plate material

Aluminum
—

Keycaps

PBT
PBT

Weight

1,090 g
—

Dimensions

31 x 126 x 373 mm
—

Typing angle

5°, 8°
—

Backlight

RGB, north-facing
RGB

Firmware & software

QMK

Yes
No

VIA

Yes
No

N-key rollover

Yes
No

Mac & Windows

Yes
No

Extras

Released

2025
2023

Where to buy

Compare prices

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

Lowest price across stores, Amazon excluded.

  • MKUS

    In stock
    $118Visit
  • KeychronHK

    In stock
    $134Visit
  • Keychron (DE)DE

    In stock
    $180Visit
  • AmazonGlobal

    Check price
    Visit
  • MechkeysCN

    In stock
    $169Visit
  • AmazonGlobal

    Check price
    ~$169Visit

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