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Head to head · Prices checked Nov 7, 2026

GravaStar Mercury K1 vs PBTfans Athena 75

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Quick verdict

Which one should you get?

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.

Get the

PBTfans Athena 75

Build quality in the top 15% of 75% boards under $200.

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.

GravaStar Mercury K1

PBTfans Athena 75

  • Connection

    Bluetooth, 2.4 GHz, Wired

    Wired

    Wireless for several devices and wired for lower latency

  • Ergonomics

    Standard

    Split Backspace

  • Switch options

    Linear

    Clicky

  • Mount style

    Gasket Mount

    Top Mount

  • Display

    None

    LCD

    A case display rather than a typing feature

KeebFinder scores

How we score
  • GravaStar Mercury K1
  • PBTfans Athena 75
Performance
66
70
Build quality
67
81
Productivity
67
76
Customizability
64
82
Portability
92
63

What they share

  • Layout size: 75%
  • Hot-swappable
  • Case material: Aluminum
See every spec side by side

Full specs

GravaStar Mercury K1 vs PBTfans Athena 75 specs

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

13 of 22 specs differ

GravaStar Mercury K1

PBTfans Athena 75

Typing & switches

Switch options

Linear
Clicky

Hot-swappable

Yes
Yes

Mount style

Gasket Mount
Top Mount

Sound dampening

No
Yes

Layout

Layout size

75%
75%

Layout standard

ANSI
ANSI, ISO

Ergonomics

Standard
Split Backspace

Display

None
LCD

Connectivity & battery

Connection

Bluetooth, 2.4 GHz, Wired
Wired

Battery

8,000 mAh
Wired only

USB-C

Yes
Yes

Build & materials

Case material

Aluminum
Aluminum

Plate material

POM
Aluminum, CarbonFiber, FR4, Polycarbonate, Steel

Keycaps

—
PBT

Weight

1,080 g
2,200 g

Dimensions

46 x 343 x 156 mm
—

Typing angle

—
9°

Backlight

RGB
RGB

Firmware & software

VIA

No
Yes

VIAL

No
Yes

Mac & Windows

Yes
No

Extras

Released

2024
2026

For EU buyers

ISO layouts by store

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

GravaStar Mercury K1

No ISO layout at the stores we track.

PBTfans Athena 75

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

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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