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Head to head · Prices checked Oct 30, 2026

Keychron K5 Ultra vs K5 Version 2 Flache

Get the Keychron K5 Ultra for the 2,600 mAh battery and the 8,000 Hz polling rate.

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Quick verdict

Which one should you get?

Get the

Keychron K5 Ultra

Battery

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

Keychron K5 Version 2 Flache

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.
  • Missing ISO-FR, ISO-ES, ISO-IT. The other board is sold in those layouts.

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

Keychron K5 Version 2 Flache

  • Connection

    Bluetooth, 2.4 GHz, Wired

    Bluetooth, Wired

    Wireless for several devices and wired for lower latency

  • Battery

    2,600 mAh

    2,000 mAh

    A larger battery means fewer cables during the day

  • Max polling rate

    8,000 Hz

    1,000 Hz

    Higher polling helps competitive FPS and does nothing for typing

  • Case material

    ABS, Metal, Wood

    ABS, Aluminum

  • Switch options

    Clicky, Linear, Tactile

    Linear

KeebFinder scores

How we score
  • Keychron K5 Ultra
  • Keychron K5 Version 2 Flache
Performance
91
70
Build quality
75
75
Productivity
93
89
Customizability
89
89
Portability
56
56

What they share

  • Layout size: 100%
  • Hot-swappable
  • Low profile
  • QMK
  • VIA
  • Sound dampening
See every spec side by side

Full specs

Keychron K5 Ultra vs K5 Version 2 Flache specs

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

11 of 24 specs differ

Keychron K5 Ultra

Keychron K5 Version 2 Flache

Typing & switches

Switch options

Clicky, Linear, Tactile
Linear

Hot-swappable

Yes
Yes

Low profile

Yes
Yes

Sound dampening

Yes
Yes

Layout

Layout size

100%
100%

Layout standard

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

Ergonomics

Standard
Standard

Knob

Yes
No

Display

None
None

Media keys

No
Yes

Connectivity & battery

Connection

Bluetooth, 2.4 GHz, Wired
Bluetooth, Wired

Max polling rate

8,000 HzBetter
1,000 Hz

Battery

2,600 mAhBetter
2,000 mAh

USB-C

Yes
Yes

Build & materials

Case material

ABS, Metal, Wood
ABS, Aluminum

Plate material

Aluminum
—

Keycaps

PBT
ABS

Weight

566 g
—

Backlight

RGB, north-facing
RGB

Firmware & software

QMK

Yes
Yes

VIA

Yes
Yes

N-key rollover

Yes
No

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

Keychron K5 Version 2 Flache

Listed on the product, not split by store: ISO-DE.

Where to buy

Compare prices

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

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Lowest price across stores, Amazon excluded.

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