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Head to head · Prices checked Oct 23, 2026

Epomaker Hack70 vs Redragon SPHINX K503

Get the Epomaker Hack70 for hot-swappable.

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.

Epomaker Hack70

Redragon SPHINX K503

  • Layout size

    65%

    100%

  • Connection

    Bluetooth, 2.4 GHz, Wired

    Wired

  • Hot-swappable

    Yes

    No

  • Ergonomics

    Ortholinear

    Standard

  • Weight

    676 g

    1,000 g

KeebFinder scores

How we score
  • Epomaker Hack70
  • Redragon SPHINX K503
Performance
72
77
Build quality
71
43
Productivity
83
50
Customizability
73
48
Portability
88
41
See every spec side by side

From real owners

What owners say

Ratings and quotes collected from verified store reviews, including the critical ones.

Epomaker Hack70

5.0

3 owner reviews

Praise
“Este es uno de los teclados más extraños que he usado y requiere desaprender (memoria muscular) para disfrutar de el y creanme que vale la pena. Lo super recomiendo.”
Luis V.Verified buyer· via Epomaker

Redragon SPHINX K503

No owner reviews collected yet.

Full specs

Epomaker Hack70 vs Redragon SPHINX K503 specs

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

13 of 22 specs differ

Epomaker Hack70

Redragon SPHINX K503

Typing & switches

Switch options

Linear
—

Hot-swappable

Yes
No

Mount style

Gasket Mount
—

Sound dampening

Yes
No

Layout

Layout size

65%
100%

Layout standard

ANSI
ISO, ISO-FR

Ergonomics

Ortholinear
Standard

Display

None
None

Connectivity & battery

Connection

Bluetooth, 2.4 GHz, Wired
Wired

Max polling rate

1,000 Hz
—

Battery

3,000 mAh
Wired only

USB-C

Yes
No

Build & materials

Case material

ABS, Plastic
—

Plate material

Polycarbonate
—

Keycaps

PBT
—

Weight

676 g
1,000 g

Dimensions

40 x 302 x 119 mm
440 x 180 x 40 mm

Backlight

RGB, south-facing
RGB

Firmware & software

VIA

Yes
No

N-key rollover

Yes
Yes

Mac & Windows

Yes
No

Extras

Released

2026
2025

Where to buy

Compare prices

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

Lowest price across stores, Amazon excluded.

  • EpomakerUS

    In stock
    $89Visit
  • AmazonGlobal

    Check price
    Visit
  • RedragonCN

    In stock
    $30Visit
  • AmazonGlobal

    Check price
    ~$30Visit

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.

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