3-way comparison · Prices checked Nov 11, 2026

AULA F75 Max vs GravaStar Mercury K1 vs Keychron V3

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AULA F75 Max

4.8 (52)4.8 · 52 reviews

from$70at Epomaker

90-day lowLowest price in 90 days

Compare 3 stores

GravaStar Mercury K1

No reviews

from$139at WhatGeek

Compare 2 stores

Keychron V3

4.9 (17)4.9 · 17 reviews

from$54at Keychron

Compare 4 stores

Quick verdict

Which one should you get?

Get the

AULA F75 Max

Build quality in the top 25% of 75% boards under $100.

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.
No numpad.

$70 at Epomaker

Get the

GravaStar Mercury K1

Build quality in the top 50% of 75% boards under $150.

Rules this board out

No ISO layout. ISO-DE, UK, and other ISO variants are not offered.
No numpad.

$139 at WhatGeek

Get the

Keychron V3

Build quality in the top 5% of 80% boards under $100.

Rules this board out

South-facing LEDs. Shine-through legends stay dark, and some sculpted keycaps can clip the LED.
No numpad.

$54 at Keychron

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 F75 Max

GravaStar Mercury K1

Keychron V3

Layout size
75%
75%
80%
Connection
Bluetooth, 2.4 GHz, Wired
Bluetooth, 2.4 GHz, Wired
Wired
Wireless for several devices and wired for lower latency
Case material
ABS
Aluminum
ABS, Plastic
Switch options
Linear
Linear
Clicky, Linear, Tactile
Mount style
Gasket Mount
Gasket Mount
Gasket Mount, Plate Mount, Tray Mount

KeebFinder scores

How we score

AULA F75 Max
GravaStar Mercury K1
Keychron V3

Performance: 78
65
91
Build quality: 76
67
88
Productivity: 91
67
98
Customizability: 78
63
98
Portability: 79
92
58

What they share

Hot-swappable

See every spec side by side

Full specs

AULA F75 Max vs GravaStar Mercury K1 vs Keychron V3 specs

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

19 of 27 specs differ

Spec

AULA F75 Max

GravaStar Mercury K1

Keychron V3

Typing & switches

Switch options

Linear

Clicky, Linear, Tactile

Hot-swappable

Yes

Mount style

Gasket Mount

Gasket Mount, Plate Mount, Tray Mount

Sound dampening

Yes

Screw-in stabilizers

Yes

Layout

Layout size

75%

80%

Layout standard

ANSI

ANSI, ISO, ISO-DE, ISO-ES, ISO-FR, ISO-SW, ISO-UK, JIS

Ergonomics

Standard

Knob

Yes

Display

TFT

None

Media keys

Yes

Connectivity & battery

Connection

Bluetooth, 2.4 GHz, Wired

Wired

Max polling rate

1,000 Hz

—

8,000 Hz

Battery

4,000 mAh

8,000 mAh

Wired only

USB-C

Yes

Build & materials

Case material

ABS

Aluminum

ABS, Plastic

Plate material

Plastic

POM

Polycarbonate, Steel

Keycaps

PBT

—

ABS, PBT

Weight

960 g

1,080 g

1,360 g

Dimensions

44 x 328 x 143 mm

46 x 343 x 156 mm

19 x 141 x 367 mm

Typing angle

—

4°

Backlight

RGB, south-facing

RGB

RGB, south-facing

Firmware & software

QMK

Yes

VIA

Yes

N-key rollover

Yes

Mac & Windows

Yes

Extras

Released

2024

2022

For EU buyers

ISO layouts by store

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

AULA F75 Max

No ISO layout at the stores we track.

GravaStar Mercury K1

No ISO layout at the stores we track.

Keychron V3

Keychron
ISO-DE, ISO-UK, ISO-FR, ISO-ES, ISO-SW
In stockShips to you
Keychron (DE)
ISO-DE, ISO-ES
In stockDoes not ship to you
Keychron (DE)
ISO-DE, ISO-UK, ISO-FR, ISO-ES, ISO-SW
Out of 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.

AULA F75 Max3 stores