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Head to head · Prices checked Oct 28, 2026

Keychron K5 Ultra vs Yunzii B98 PRO

Get the Keychron K5 Ultra for the 8,000 Hz polling rate. Get the Yunzii B98 PRO for the 8,000 mAh battery.

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Quick verdict

Which one should you get?

Get the

Keychron K5 Ultra

polling rate

Build quality in the top 15% of 100% boards under $150.

Rules this board out

  • Low-profile switches and keycaps only. Standard MX keycaps will not fit.
  • North-facing LEDs. Cherry-profile keycaps can hit the switch housing.

Get the

Yunzii B98 PRO

Battery

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

Rules this board out

  • South-facing LEDs. Shine-through legends stay dark, and some sculpted keycaps can clip the LED.
  • Missing ISO-ES, ISO-IT, ISO-PT. The other board is sold in those layouts.
  • 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.

Keychron K5 Ultra

Yunzii B98 PRO

  • Layout size

    100%

    96%

  • Battery

    2,600 mAh

    8,000 mAh

    A larger battery means fewer cables during the day

  • Low profile

    Yes

    No

  • Max polling rate

    8,000 Hz

    1,000 Hz

    Higher polling helps competitive FPS and does nothing for typing

  • Case material

    ABS, Metal, Wood

    Metal, Plastic

KeebFinder scores

How we score
  • Keychron K5 Ultra
  • Yunzii B98 PRO
Performance
91
84
Build quality
75
81
Productivity
93
93
Customizability
89
94
Portability
56
63

What they share

  • Connection: Bluetooth, 2.4 GHz, Wired
  • Hot-swappable
  • Knob
  • QMK
  • VIA
  • Sound dampening
See every spec side by side

Full specs

Keychron K5 Ultra vs Yunzii B98 PRO specs

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

11 of 26 specs differ

Keychron K5 Ultra

Yunzii B98 PRO

Typing & switches

Switch options

Clicky, Linear, Tactile
Linear

Hot-swappable

Yes
Yes

Mount style

—
Gasket Mount

Low profile

Yes
No

Sound dampening

Yes
Yes

Layout

Layout size

100%
96%

Layout standard

ANSI, ISO, ISO-DE, ISO-ES, ISO-FR, ISO-IT, ISO-PT
ANSI, ISO, ISO-DE, ISO-FR

Ergonomics

Standard
Standard

Knob

Yes
Yes

Display

None
OLED, LED

Media keys

No
Yes

Connectivity & battery

Connection

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

Max polling rate

8,000 HzBetter
1,000 Hz

Battery

2,600 mAh
8,000 mAhBetter

USB-C

Yes
Yes

Build & materials

Case material

ABS, Metal, Wood
Metal, Plastic

Plate material

Aluminum
Aluminum

Keycaps

PBT
PBT

Weight

566 g
1,188 g

Dimensions

—
49 x 414 x 142 mm

Backlight

RGB, north-facing
RGB, south-facing

Firmware & software

QMK

Yes
Yes

VIA

Yes
Yes

N-key rollover

Yes
Yes

Mac & Windows

Yes
Yes

Extras

Released

2026
2026

For EU buyers

ISO layouts by store

Which stores sell ISO-DE, UK, and the other regional layouts.

Keychron K5 Ultra

  • Keychron (DE)

    ISO-DE, ISO-FR, ISO-ES, ISO-IT

    In stockDoes not ship to you

Yunzii B98 PRO

  • Yunzii

    ISO-DE, ISO-FR

    In stockShips to you

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.

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