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Head to head · Prices checked Oct 21, 2026

Keychron K2 Ultra vs Yunzii AL75

Get the Keychron K2 Ultra for the 8,000 Hz polling rate and qmk. Get the Yunzii AL75 for the 6,000 mAh battery.

Keychron K2 Ultra 8K Wireless Custom Mechanical Keyboard ISO Layout Collection

polling rate

Keychron K2 Ultra

4.0 · 4 reviews

from$119at Keychron

Shop nowCompare 3 stores

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

Yunzii AL75

  • Battery

    4,000 mAh

    6,000 mAh

  • Max polling rate

    8,000 Hz

    1,000 Hz

  • Case material

    ABS, Aluminum

    Aluminum

  • Weight

    1,084 g

    1,410.58 g

  • QMK

    Yes

    No

KeebFinder scores

How we score
  • Keychron K2 Ultra
  • Yunzii AL75
Performance
90
58
Build quality
86
63
Productivity
94
76
Customizability
92
72
Portability
82
91

What they share

  • Layout size: 75%
  • Connection: Bluetooth, 2.4 GHz, Wired
  • Hot-swappable
  • Switch options: Clicky, Linear, Tactile
  • Mount style: Gasket Mount
  • 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 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

Yunzii AL75

No owner reviews collected yet.

Full specs

Keychron K2 Ultra vs Yunzii AL75 specs

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

11 of 25 specs differ

Keychron K2 Ultra

Yunzii AL75

Typing & switches

Switch options

Clicky, Linear, Tactile
Clicky, Linear, Tactile

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

Display

None
None

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
6,000 mAhBetter

USB-C

Yes
Yes

Build & materials

Case material

ABS, Aluminum
Aluminum

Plate material

Steel
—

Keycaps

PBT
PBT

Weight

1,084 g
1,410.58 g

Dimensions

31 x 312 x 122 mm
38 x 315 x 138 mm

Backlight

RGB, south-facing
RGB, south-facing

Firmware & software

QMK

Yes
No

VIA

Yes
No

N-key rollover

Yes
Yes

Mac & Windows

Yes
Yes

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.

  • KeychronHK

    In stock
    $119Visit
  • MKUS

    In stock
    $119Visit
  • Keychron (DE)DE

    In stock
    $150Visit
  • AmazonGlobal

    Check price
    Visit
Yunzii AL753 stores
  • MechkeysCN

    In stock
    $94Visit
  • AmazonGlobal

    Check price
    ~$94Visit
  • YunziiCN

    Out of stock
    $79Visit

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