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Head to head · Prices checked Nov 11, 2026

Ajazz AK820 Pro vs Newmen GM840 Pro

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

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Quick verdict

Which one should you get?

Get the

Ajazz AK820 Pro

Battery

Build quality in the top 25% 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.

Get the

Newmen GM840 Pro

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

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

Newmen GM840 Pro

  • Battery

    4,000 mAh

    2,000 mAh

    A larger battery means fewer cables during the day

  • Case material

    ABS, Aluminum

    Plastic

  • Switch options

    Linear

    Clicky, Linear

  • Knob

    Yes

    No

  • Display

    TFT

    None

    A case display rather than a typing feature

KeebFinder scores

How we score
  • Ajazz AK820 Pro
  • Newmen GM840 Pro
Performance
77
48
Build quality
75
40
Productivity
81
62
Customizability
72
54
Portability
79
76

What they share

  • Layout size: 75%
  • Connection: Bluetooth, 2.4 GHz, Wired
  • Hot-swappable
  • Sound dampening
  • Keycaps: PBT
See every spec side by side

Full specs

Ajazz AK820 Pro vs Newmen GM840 Pro specs

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

11 of 21 specs differ

Ajazz AK820 Pro

Newmen GM840 Pro

Typing & switches

Switch options

Linear
Clicky, Linear

Hot-swappable

Yes
Yes

Mount style

Gasket Mount
—

Sound dampening

Yes
Yes

Layout

Layout size

75%
75%

Layout standard

ANSI
ANSI

Ergonomics

Standard
Standard

Knob

Yes
No

Display

TFT
None

Connectivity & battery

Connection

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

Battery

4,000 mAhBetter
2,000 mAh

USB-C

Yes
Yes

Build & materials

Case material

ABS, Aluminum
Plastic

Plate material

Polycarbonate
—

Keycaps

PBT
PBT

Weight

810 g
747 g

Dimensions

40 x 327 x 136 mm
39 x 121 x 31 mm

Backlight

RGB, south-facing
RGB

Firmware & software

N-key rollover

Yes
No

Mac & Windows

Yes
No

Extras

Released

2023
2022

Where to buy

Compare prices

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

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Lowest price across stores, Amazon excluded.

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