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Head to head · Prices checked Oct 29, 2026

Ajazz AK820 Pro vs Keychron K3 Max

Get the Ajazz AK820 Pro for the 4,000 mAh battery.

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Quick verdict

Which one should you get?

Get the

Ajazz AK820 Pro

Battery

Build quality in the top 50% of 75% boards under $100.

Rules this board out

  • South-facing LEDs. Shine-through legends stay dark, and some sculpted keycaps can clip the LED.
  • No ISO layout. ISO-DE, UK, and other ISO variants are not offered.

Get the

Keychron K3 Max

Build quality in the top 5% of 75% boards under $100.

Rules this board out

  • Low-profile switches and keycaps only. Standard MX keycaps will not fit.
  • North-facing LEDs. Cherry-profile keycaps can hit the switch housing.

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 AK820 Pro

Keychron K3 Max

  • Battery

    4,000 mAh

    1,550 mAh

    A larger battery means fewer cables during the day

  • Low profile

    No

    Yes

  • Case material

    ABS, Aluminum

    ABS, Aluminum, Plastic, Wood

  • Switch options

    Linear

    Clicky, Linear, Tactile

  • Mount style

    Gasket Mount

    Plate Mount

KeebFinder scores

How we score
  • Ajazz AK820 Pro
  • Keychron K3 Max
Performance
61
81
Build quality
66
86
Productivity
82
94
Customizability
72
91
Portability
79
77

What they share

  • Layout size: 75%
  • Connection: Bluetooth, 2.4 GHz, Wired
  • Hot-swappable
  • Sound dampening
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 AK820 Pro

4.6

256 owner reviews

Praise
“It's a nice keyboard, has a nice sound when typing. I like the dedicated volume know and it's easy to load gifs onto the little screen using the ajazz software”
David C.Verified buyer· via Epomaker
Critique
“So recently i started to notice my w key stop completely and have to press again and again for the input, please can you assist me in this matter”
Aniruddh C.Verified buyer· via Epomaker

Keychron K3 Max

4.1

16 owner reviews

Praise
“Noce keyboard, i appreciate the level of customization QMK provides. One thing was little disappointing - the tactile feeling comparing to K3. Other than that its very good kb!”
SergeiVerified buyer· via Keychron
Critique
“I sold my k3 pro and got this. The one I got drops connection intermittently or doesn't type or respond right away. It sounds nice, but stiff reds are not as pleasant to type on as previous keyboards reds. I really thought I ordered hotswap RGB max but seems…”
SianiVerified buyer· via Keychron

Full specs

Ajazz AK820 Pro vs Keychron K3 Max specs

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

17 of 28 specs differ

Ajazz AK820 Pro

Keychron K3 Max

Typing & switches

Switch options

Linear
Clicky, Linear, Tactile

Hot-swappable

Yes
Yes

Mount style

Gasket Mount
Plate Mount

Low profile

No
Yes

Sound dampening

Yes
Yes

Screw-in stabilizers

No
Yes

Layout

Layout size

75%
75%

Layout standard

ANSI
ANSI, ISO, ISO-DE, ISO-Nordic, ISO-SW, ISO-UK

Ergonomics

Standard
Standard

Knob

Yes
No

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

4,000 mAhBetter
1,550 mAh

USB-C

Yes
Yes

Build & materials

Case material

ABS, Aluminum
ABS, Aluminum, Plastic, Wood

Plate material

Polycarbonate
Aluminum, Plastic, Polycarbonate

Keycaps

PBT
ABS, PBT

Weight

810 g
580 g

Dimensions

40 x 327 x 136 mm
22 x 306 x 116 mm

Typing angle

—
3°, 7°

Backlight

RGB, south-facing
RGB, north-facing

Firmware & software

QMK

No
Yes

VIA

No
Yes

N-key rollover

Yes
Yes

Mac & Windows

Yes
Yes

Extras

Released

2023
2023

For EU buyers

ISO layouts by store

Which stores sell ISO-DE, UK, and the other regional layouts.

Ajazz AK820 Pro

No ISO layout at the stores we track.

Keychron K3 Max

  • Input Gear

    ISO-DE

    Out of stockShips to you

  • Keychron

    ISO-DE, ISO-UK, ISO-Nordic, ISO-SW

    Out of stockShips to you

  • Keychron (DE)

    ISO-DE, ISO-UK, ISO-SW

    In stockDoes not ship to you

Where to buy

Compare prices

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

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.

Lowest price across stores, Amazon excluded.

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