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Head to head · Prices checked Oct 31, 2026

Cidoo V75 Plus vs Keychron B39

Get the Cidoo V75 Plus for the 3,000 mAh battery. Get the Keychron B39 for knob.

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Quick verdict

Which one should you get?

Get the

Cidoo V75 Plus

Battery

Build quality in the bottom 45% of 75% boards under $150.

Rules this board out

  • Switches are soldered. Swapping them means soldering.
  • No numpad.

Get the

Keychron B39

Knob

Build quality in the bottom 15% of 96% boards under $100.

Rules this board out

  • Switches are soldered. Swapping them means soldering.
  • Low-profile switches and keycaps only. Standard MX keycaps will not fit.
  • Compact full-size layout. The numpad is present, the gaps of a full-size board are not.

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.

Cidoo V75 Plus

Keychron B39

  • Layout size

    75%

    96%

  • Battery

    3,000 mAh

    800 mAh

    A larger battery means fewer cables during the day

  • Low profile

    No

    Yes

  • Ergonomics

    Standard

    Alice

  • Knob

    No

    Yes

KeebFinder scores

How we score
  • Cidoo V75 Plus
  • Keychron B39
Performance
41
48
Build quality
63
44
Productivity
58
73
Customizability
60
44
Portability
72
49

What they share

  • Connection: Bluetooth, 2.4 GHz, Wired
See every spec side by side

Full specs

Cidoo V75 Plus vs Keychron B39 specs

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

11 of 20 specs differ

Cidoo V75 Plus

Keychron B39

Typing & switches

Switch options

—
Clicky, Linear, Tactile

Mount style

Gasket Mount
—

Low profile

No
Yes

Sound dampening

Yes
No

Layout

Layout size

75%
96%

Layout standard

ANSI
ANSI

Ergonomics

Standard
Alice

Knob

No
Yes

Display

LED
None

Connectivity & battery

Connection

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

Max polling rate

—
1,000 Hz

Battery

3,000 mAhBetter
800 mAh

USB-C

No
Yes

Build & materials

Case material

—
ABS, Plastic

Keycaps

—
ABS

Weight

—
680 g

Backlight

None
None

Firmware & software

VIA

Yes
No

Mac & Windows

No
Yes

Extras

Released

2023
2026

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.

Keychron B392 stores

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