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Head to head · Prices checked Oct 21, 2026

Ajazz AK873 vs Keychron J4

Get the Ajazz AK873 for screw-in stabilizers. Get the Keychron J4 for the 4,000 mAh battery and qmk.

Ajazz AK873 TKL Mechanical Keyboard

Screw-in stabilizers

Ajazz AK873

5.0 · 4 reviews

from$79at Mechkeys

Shop nowSee all prices

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.

Ajazz AK873

Keychron J4

  • Battery

    2,500 mAh

    4,000 mAh

  • QMK

    No

    Yes

  • VIA

    No

    Yes

  • Screw-in stabilizers

    Yes

    No

  • Backlight

    RGB

    RGB, north-facing

KeebFinder scores

How we score
  • Ajazz AK873
  • Keychron J4
Performance
48
70
Build quality
63
71
Productivity
87
74
Customizability
66
86
Portability
73
66

What they share

  • Layout size: 80%
  • Connection: Bluetooth, 2.4 GHz, Wired
  • Hot-swappable
  • Switch options: Clicky, Linear, Tactile
  • 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.

Ajazz AK873

5.0

4 owner reviews

Praise
“The Ajazz AK873 particularly attracted me for its original body (frame), which can be easily removed thanks to the magnet attachment. For the rest nothing really interesting, but anyway I want to share my experience on this model with you users, through my…”
Fabio G.Verified buyer· via Epomaker

Keychron J4

No owner reviews collected yet.

Full specs

Ajazz AK873 vs Keychron J4 specs

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

9 of 24 specs differ

Ajazz AK873

Keychron J4

Typing & switches

Switch options

Clicky, Linear, Tactile
Clicky, Linear, Tactile

Hot-swappable

Yes
Yes

Mount style

Sandwich Mount
—

Sound dampening

Yes
Yes

Screw-in stabilizers

Yes
No

Layout

Layout size

80%
80%

Layout standard

ANSI
ANSI

Ergonomics

Standard
Standard

Display

None
None

Media keys

No
Yes

Connectivity & battery

Connection

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

Max polling rate

—
1,000 Hz

Battery

2,500 mAh
4,000 mAhBetter

USB-C

Yes
No

Build & materials

Case material

Aluminum
—

Plate material

—
Steel

Keycaps

PBT
PBT

Weight

1,100 g
—

Dimensions

35 x 356 x 130 mm
—

Backlight

RGB
RGB, north-facing

Firmware & software

QMK

No
Yes

VIA

No
Yes

Mac & Windows

Yes
No

Extras

Released

2022
2025

Where to buy

Compare prices

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

Lowest price across stores, Amazon excluded.

Ajazz AK8733 stores
  • MechkeysCN

    In stock
    $79Visit
  • AmazonGlobal

    Check price
    ~$79Visit
  • WhatGeekCN

    Out of stock
    $79Visit
Keychron J42 stores
  • KeychronHK

    In stock
    $59Visit
  • AmazonGlobal

    Check price
    Visit

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