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Head to head · Prices checked Nov 1, 2026

Keychron Lemokey X2 vs Redragon SPHINX K503

Get the Keychron Lemokey X2 for hot-swappable and qmk.

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Quick verdict

Which one should you get?

Get the

Keychron Lemokey X2

Hot-swappable

Build quality in the top 10% of 100% boards under $100.

Rules this board out

  • North-facing LEDs. Cherry-profile keycaps can hit the switch housing.
  • No ISO layout. ISO-DE, UK, and other ISO variants are not offered.
$49 at Keychron

Get the

Redragon SPHINX K503

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

Rules this board out

  • Switches are soldered. Swapping them means soldering.
$30 at Redragon

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 Lemokey X2

Redragon SPHINX K503

  • Hot-swappable

    Yes

    No

    Switch changes without soldering

  • Weight

    970 g

    1,000 g

    Heavier boards stay planted and lighter ones travel

  • QMK

    Yes

    No

    The deep option when you want to remap every key

  • VIA

    Yes

    No

    GUI remapping without compiling firmware

  • Sound dampening

    Yes

    No

KeebFinder scores

How we score
  • Keychron Lemokey X2
  • Redragon SPHINX K503
Performance
75
76
Build quality
84
43
Productivity
96
50
Customizability
89
48
Portability
47
41

What they share

  • Layout size: 100%
  • Connection: Wired
See every spec side by side

Full specs

Keychron Lemokey X2 vs Redragon SPHINX K503 specs

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

12 of 24 specs differ

Keychron Lemokey X2

Redragon SPHINX K503

Typing & switches

Switch options

Clicky, Linear, Tactile
—

Hot-swappable

Yes
No

Mount style

Tray Mount
—

Sound dampening

Yes
No

Screw-in stabilizers

Yes
No

Layout

Layout size

100%
100%

Layout standard

ANSI
ISO, ISO-FR

Ergonomics

Standard
Standard

Display

None
None

Connectivity & battery

Connection

Wired
Wired

Max polling rate

1,000 Hz
—

USB-C

Yes
No

Build & materials

Case material

ABS
—

Plate material

Steel
—

Keycaps

ABS
—

Weight

970 g
1,000 g

Dimensions

37 x 438 x 129 mm
440 x 180 x 40 mm

Typing angle

7°
—

Backlight

Yes, north-facing
RGB

Firmware & software

QMK

Yes
No

VIA

Yes
No

N-key rollover

Yes
Yes

Mac & Windows

Yes
No

Extras

Released

2024
2025

For EU buyers

ISO layouts by store

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

Keychron Lemokey X2

No ISO layout at the stores we track.

Redragon SPHINX K503

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

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.

Keychron Lemokey X22 stores
Redragon SPHINX K5032 stores

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