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Head to head · Prices checked Oct 23, 2026

Keychron K4 V3 vs Vgn S99

Get the Vgn S99 for the 6,000 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.

Keychron K4 V3

Vgn S99

  • Connection

    Bluetooth, Wired

    Bluetooth, 2.4 GHz, Wired

  • Battery

    4,000 mAh

    6,000 mAh

  • Case material

    Aluminum, Plastic

    Plastic

  • Switch options

    Clicky, Linear, Tactile

    Linear

  • Mount style

    Tray Mount

    Gasket Mount

KeebFinder scores

How we score
  • Keychron K4 V3
  • Vgn S99
Performance
82
59
Build quality
87
52
Productivity
95
62
Customizability
96
59
Portability
54
59

What they share

  • Layout size: 96%
  • Hot-swappable
  • Max polling rate: 1,000 Hz
  • 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.

Keychron K4 V3

5.0

4 owner reviews

Praise
“I am overall extremely impressed with this keyboard! I upgraded from a Corsair K70 Luxe that I had for many years, and this feels like miles better of an experience. I am impressed how good the Banana switches are, they are a little more tactile than the…”
Nick M.Verified buyer· via Keychron

Vgn S99

No owner reviews collected yet.

Full specs

Keychron K4 V3 vs Vgn S99 specs

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

15 of 24 specs differ

Keychron K4 V3

Vgn S99

Typing & switches

Switch options

Clicky, Linear, Tactile
Linear

Hot-swappable

Yes
Yes

Mount style

Tray Mount
Gasket Mount

Sound dampening

Yes
Yes

Screw-in stabilizers

Yes
No

Layout

Layout size

96%
96%

Layout standard

ANSI, ISO, ISO-CH, ISO-DE, ISO-Nordic, ISO-UK
ANSI

Ergonomics

Standard
Standard

Display

None
LED

Media keys

Yes
No

Connectivity & battery

Connection

Bluetooth, Wired
Bluetooth, 2.4 GHz, Wired

Max polling rate

1,000 Hz
1,000 Hz

Battery

4,000 mAh
6,000 mAhBetter

USB-C

Yes
Yes

Build & materials

Case material

Aluminum, Plastic
Plastic

Plate material

—
FR4

Keycaps

PBT, PC
PBT

Typing angle

5°
—

Backlight

RGB, south-facing
RGB

Firmware & software

QMK

Yes
No

VIA

Yes
No

N-key rollover

Yes
Yes

Mac & Windows

Yes
No

Extras

Released

2025
2026

Where to buy

Compare prices

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

Lowest price across stores, Amazon excluded.

  • KeychronHK

    In stock
    $94Visit
  • Keychron (DE)DE

    In stock
    $130Visit
  • AmazonGlobal

    Check price
    ~$94Visit
Vgn S992 stores
  • MechkeysCN

    In stock
    $79Visit
  • AmazonGlobal

    Check price
    ~$79Visit

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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