Not sure which keyboard to choose? Try the Keyboard Finder now!

Head to head · Prices checked Oct 28, 2026

AULA F108 Pro V2 vs Keychron K5 Ultra

Get the AULA F108 Pro V2 for the 10,000 mAh battery. Get the Keychron K5 Ultra for knob.

KeebFinder may earn a commission when you buy through these links, at no extra cost to you.

Quick verdict

Which one should you get?

Get the

AULA F108 Pro V2

Battery

Build quality in the top 25% of 100% boards under $150.

Rules this board out

  • South-facing LEDs. Shine-through legends stay dark, and some sculpted keycaps can clip the LED.
  • No ISO layout. ISO-DE, UK, and other ISO variants are not offered.

Get the

Keychron K5 Ultra

Knob

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.

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.

AULA F108 Pro V2

Keychron K5 Ultra

  • Battery

    10,000 mAh

    2,600 mAh

    A larger battery means fewer cables during the day

  • Low profile

    No

    Yes

  • Case material

    ABS, Plastic

    ABS, Metal, Wood

  • Switch options

    Linear

    Clicky, Linear, Tactile

  • Knob

    No

    Yes

KeebFinder scores

How we score
  • AULA F108 Pro V2
  • Keychron K5 Ultra
Performance
88
91
Build quality
65
75
Productivity
75
93
Customizability
68
89
Portability
66
56

What they share

  • Layout size: 100%
  • Connection: Bluetooth, 2.4 GHz, Wired
  • Hot-swappable
  • Max polling rate: 8,000 Hz
  • 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.

AULA F108 Pro V2

4.3

3 owner reviews

Praise
“just received the keyboard. I am so happy with it!! I chose the Cotton Candy switches, and this is exactly what I was looking for. I had tried other mechanical keyboards before, but they were never quite what I wanted. These switches are so soft and feel…”
JennyQVerified buyer· via Epomaker
Critique
“The overall build quality and the feel is amazing but it sometimes restarts itself for no apparent reason (every 3h or so) when used wired.”
Mateusz S.Verified buyer· via Epomaker

Keychron K5 Ultra

5.0

4 owner reviews

Praise
“This keyboard is exactly what I was looking for. Low profile, great switches, not uber gamery. Very happy so far, hopefully it keeps working for a long time.”
StephenVerified buyer· via Keychron

Full specs

AULA F108 Pro V2 vs Keychron K5 Ultra specs

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

12 of 25 specs differ

AULA F108 Pro V2

Keychron K5 Ultra

Typing & switches

Switch options

Linear
Clicky, Linear, Tactile

Hot-swappable

Yes
Yes

Mount style

Gasket Mount
—

Low profile

No
Yes

Sound dampening

Yes
Yes

Layout

Layout size

100%
100%

Layout standard

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

Ergonomics

Standard
Standard

Knob

No
Yes

Display

LCD
None

Connectivity & battery

Connection

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

Max polling rate

8,000 Hz
8,000 Hz

Battery

10,000 mAhBetter
2,600 mAh

USB-C

Yes
Yes

Build & materials

Case material

ABS, Plastic
ABS, Metal, Wood

Plate material

Polycarbonate
Aluminum

Keycaps

PBT
PBT

Weight

1,329 g
566 g

Dimensions

43 x 443 x 139 mm
—

Backlight

RGB, south-facing
RGB, north-facing

Firmware & software

QMK

No
Yes

VIA

No
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.

AULA F108 Pro V2

No ISO layout at the stores we track.

Keychron K5 Ultra

  • Keychron (DE)

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

    In stockDoes not ship 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.

Still torn?

Answer a few quick questions and the keyboard finder ranks 2,000+ boards by how you will actually use yours.