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Head to head · Prices checked Oct 21, 2026

Keychron K2 Ultra vs Piifox Walker75

Get the Keychron K2 Ultra for the 8,000 Hz polling rate. Get the Piifox Walker75 for hall effect and the 5,000 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 K2 Ultra

Piifox Walker75

  • Hall effect (magnetic)

    No

    Yes

  • Battery

    4,000 mAh

    5,000 mAh

  • Max polling rate

    8,000 Hz

    1,000 Hz

  • Case material

    ABS, Aluminum

    Aluminum, Plastic

  • Switch options

    Clicky, Linear, Tactile

    Linear, Magnetic

KeebFinder scores

How we score
  • Keychron K2 Ultra
  • Piifox Walker75
Performance
90
76
Build quality
86
75
Productivity
94
70
Customizability
92
71
Portability
82
79

What they share

  • Layout size: 75%
  • Connection: Bluetooth, 2.4 GHz, Wired
  • Hot-swappable
  • Mount style: Gasket Mount
  • Sound dampening
  • 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.

Keychron K2 Ultra

4.0

4 owner reviews

Praise
“very compact, build quality is great, and I don't even feel any latency when using the keyboard wireless.”
AnonymousVerified buyer· via Keychron
Critique
“The only "zmk" support is from the launcher itself and its missing most of the ZMK features. For example Combos!”
Juan· via Keychron

Piifox Walker75

No owner reviews collected yet.

Full specs

Keychron K2 Ultra vs Piifox Walker75 specs

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

18 of 27 specs differ

Keychron K2 Ultra

Piifox Walker75

Typing & switches

Switch options

Clicky, Linear, Tactile
Linear, Magnetic

Hall effect (magnetic)

No
Yes

Hot-swappable

Yes
Yes

Mount style

Gasket Mount
Gasket Mount

Sound dampening

Yes
Yes

Screw-in stabilizers

Yes
No

Layout

Layout size

75%
75%

Layout standard

ANSI, ISO, ISO-ES, ISO-FR, ISO-IT
ANSI

Ergonomics

Standard
Standard

Knob

No
Yes

Display

None
Yes

Media keys

Yes
No

Connectivity & battery

Connection

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

Max polling rate

8,000 HzBetter
1,000 Hz

Battery

4,000 mAh
5,000 mAhBetter

USB-C

Yes
Yes

Build & materials

Case material

ABS, Aluminum
Aluminum, Plastic

Plate material

Steel
—

Keycaps

PBT
PBT

Weight

1,084 g
1,350 g

Dimensions

31 x 312 x 122 mm
50 x 180 x 385 mm

Backlight

RGB, south-facing
RGB

Firmware & software

QMK

Yes
No

VIA

Yes
No

N-key rollover

Yes
No

Mac & Windows

Yes
No

Extras

Released

2026
2024

Where to buy

Compare prices

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

Lowest price across stores, Amazon excluded.

Keychron K2 Ultra4 stores

  • KeychronHK

    In stock
    $119Visit

  • MKUS

    In stock
    $119Visit

  • Keychron (DE)DE

    In stock
    $150Visit

  • AmazonGlobal

    Check price
    Visit
Piifox Walker752 stores

  • AmazonGlobal

    Check price
    ~$129Visit

  • WhatGeekCN

    Out of stock
    $129Visit

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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