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Head to head · Prices checked Oct 21, 2026

Ajazz AC100 vs Keychron K4 Max

Get the Ajazz AC100 for the 8,000 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.

Ajazz AC100

Keychron K4 Max

  • Battery

    8,000 mAh

    4,000 mAh

  • Case material

    Aluminum

    ABS

  • Switch options

    Linear

    Clicky, Linear, Tactile

  • Mount style

    Gasket Mount

    PCB Mount

  • Display

    TFT

    None

KeebFinder scores

How we score
  • Ajazz AC100
  • Keychron K4 Max
Performance
58
82
Build quality
60
81
Productivity
65
90
Customizability
65
92
Portability
62
51

What they share

  • Layout size: 96%
  • Connection: Bluetooth, 2.4 GHz, Wired
  • Hot-swappable
  • 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 AC100

No owner reviews collected yet.

Keychron K4 Max

5.0

1 owner reviews

Full specs

Ajazz AC100 vs Keychron K4 Max specs

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

16 of 26 specs differ

Ajazz AC100

Keychron K4 Max

Typing & switches

Switch options

Linear
Clicky, Linear, Tactile

Hot-swappable

Yes
Yes

Mount style

Gasket Mount
PCB Mount

Sound dampening

No
Yes

Screw-in stabilizers

No
Yes

Layout

Layout size

96%
96%

Layout standard

ANSI
ANSI, ISO

Ergonomics

Standard
Standard

Display

TFT
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

8,000 mAhBetter
4,000 mAh

USB-C

Yes
No

Build & materials

Case material

Aluminum
ABS

Plate material

FR4, Plastic
Steel

Keycaps

PBT
PBT

Weight

2,100 g
1,290 g

Dimensions

20 x 145 x 410 mm
31 x 391 x 140 mm

Typing angle

—
3°

Backlight

RGB, south-facing
RGB, south-facing

Firmware & software

QMK

No
Yes

VIA

No
Yes

N-key rollover

Yes
Yes

Mac & Windows

Yes
Yes

Extras

Released

2024
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 AC1003 stores
  • MechkeysCN

    In stock
    $89Visit
  • AmazonGlobal

    Check price
    ~$89Visit
  • WhatGeekCN

    Out of stock
    $149Visit
  • KeychronHK

    In stock
    $99Visit
  • AmazonGlobal

    Check price
    Visit
  • Keychron (DE)DE

    Out of stock
    $135Visit

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.

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