Which one should you get?
Get the
Keychron C3 Pro
8K Gaming
- Configurable 8000 Hz polling rate for reduced input latency.
- Includes multiple internal sound-dampening foams (EVA, IXPE film, EPDM, silicone).
- TKL layout retains arrow and navigation keys in a smaller form factor.
- Larger and heavier (912g) than the X4.
- Does not include a programmable knob.
- Uses a steel plate, which may produce a firmer typing feel compared to polycarbonate.
Get the
Keychron Lemokey X4
75% Layout Choice
- More compact 75% layout saves desk space.
- Includes a programmable aluminum knob for media control.
- Lighter weight (712g) and shorter length.
- Fixed 1000 Hz polling rate, lacking the high-speed option of the C3 Pro.
- The vendor description mentions south-facing LEDs on the PBT keycap version, which can cause interference with certain Cherry-profile keycaps.
- No user reviews are available to corroborate real-world experience.
Your primary need dictates the choice. If competitive gaming latency is your top concern, the Keychron C3 Pro's 8000 Hz polling rate is the decisive feature. If you value desk space, a dedicated control knob, and a lighter build, the Keychron X4's compact 75% layout is the more practical option. Both are excellent values with strong customization foundations.
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 C3 Pro
Keychron Lemokey X4
Layout size
80%
75%
Max polling rate
8,000 Hz
1,000 Hz
Knob
No
Yes
Weight
912 g
712 g
VIA
Yes
No
- Keychron C3 Pro
- Keychron Lemokey X4
- Performance
- 9175
- Build quality
- 8183
- Productivity
- 9195
- Customizability
- 8983
- Portability
- 5965
- Connection: Wired
- Hot-swappable
- Case material: ABS, Plastic
- Switch options: Clicky, Linear, Tactile
- Mount style: Gasket Mount
- QMK
What will you mostly use it for?
The C3 Pro is the clear choice for gaming due to its high polling rate, while the X4 wins for office use and travel with its smaller footprint and included knob. For programming, both are equally capable due to their QMK support. Modders may lean towards the C3 Pro for its documented internal foams, and content creators might prefer the X4 for its programmable knob and space-saving design.
Pick the Keychron C3 Pro
- The C3 Pro offers a configurable 8000 Hz polling rate, which the manufacturer states minimizes input lag for competitive gaming.
- Its TKL (80%) layout retains dedicated arrow and navigation keys without being full-sized.
- It includes north-facing RGB LEDs for shine-through keycap illumination.
What owners say
Ratings and quotes collected from verified store reviews, including the critical ones.
Keychron C3 Pro
3 owner reviews
“I was waiting a lot of time Keychron to announce a TKL, only wired and RGB North-facing RGB LED!! Especially with Hot-swappable switches and Cherry profile double-shot PBT keycaps!!”
Keychron Lemokey X4
No owner reviews collected yet.
Keychron C3 Pro vs Lemokey X4 specs
Every tracked spec, side by side. Rows marked with a dot differ between the boards.
11 of 25 specs differ
Keychron C3 Pro
Keychron Lemokey X4
Switch options
Hot-swappable
Mount style
Sound dampening
Screw-in stabilizers
Layout size
Layout standard
Ergonomics
Knob
Display
Connection
Max polling rate
USB-C
Case material
Plate material
Keycaps
Weight
Dimensions
Typing angle
Backlight
QMK
VIA
N-key rollover
Mac & Windows
Released
Compare prices
Live prices from the stores we track, cheapest in-stock offer first.
Lowest price across stores, Amazon excluded.
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.
Keychron C3 Pro vs Lemokey X4: your questions
The Keychron C3 Pro is better suited for competitive gaming. Its key advantage is a configurable 8000 Hz polling rate, which the manufacturer states minimizes input lag for faster response times. The X4 has a standard 1000 Hz polling rate.
Yes, the Keychron X4 includes a programmable aluminum knob. According to the product listing, this knob can be remapped using the Lemokey Launcher web app for functions like volume control or putting the computer to sleep.
Yes, both the Keychron C3 Pro and X4 list Mac support in their specifications. The C3 Pro's vendor page specifically mentions a shortcut (FN + Caps Lock) to switch between Windows and Mac key mappings.
It varies. The C3 Pro comes with double-shot PBT keycaps. The X4 offers a choice: one version has OEM profile double-shot ABS keycaps, and another has Cherry profile side-printed double-shot PBT keycaps.
The Keychron X4 is more compact. It has a 75% layout measuring 325mm in length and weighs 712g. The C3 Pro is a TKL (80%) layout measuring 365mm long and weighs 912g, making it larger and heavier.
Both keyboards support QMK open-source firmware. The C3 Pro explicitly lists support for both QMK and VIA. The X4 uses the Lemokey Launcher web app, which is based on QMK, but VIA support is not specifically mentioned in the provided description.
Both the Keychron C3 Pro and the Keychron X4 use a gasket mount design. The X4's listing also highlights its polycarbonate plate in combination with the gasket structure to affect typing sound and feel.
Yes, both the Keychron C3 Pro and X4 feature hot-swappable sockets. This allows you to change the mechanical switches without soldering, supporting both 3-pin and 5-pin MX-style switches.
According to Keychron's description, the C3 Pro contains several layers for sound dampening, including 3.5mm thick EVA acoustic foam, IXPE film, EPDM foam, and a silicone pad inside the keyboard case to create a softer typing sound.
No, the Keychron X4 does not have full RGB lighting. The product listing specifies it has red backlighting with over 14 lighting modes, including flashing, breathing, and static styles.
The Keychron X4 offers a slightly higher maximum typing angle. It has adjustable feet for 4, 8, and 10-degree angles. The C3 Pro offers adjustments for 4, 6, and 8.7-degree angles.
The product specifications list both keyboards as having plate-mounted stabilizers. The X4's metadata also includes 'Screw-In Stabilizers' as an extra feature, suggesting it may come with or support them, but the primary spec lists plate-mounted.
Not sold on either?
Still torn?
Answer a few quick questions and the keyboard finder ranks 2,000+ boards by how you will actually use yours.












