What is the main difference between the Keychron K2 Pro and K4 Pro?

The K2 Pro has a 75% layout, while the K4 Pro has a 96% layout with a number pad. The K2 Pro weighs 1070 g and the K4 Pro weighs 1280 g.

Does the Keychron K4 Pro have a number pad?

Yes, the K4 Pro uses a 96% layout that includes a number pad. The K2 Pro uses a 75% layout and does not list a number pad.

Which is smaller, the Keychron K2 Pro or K4 Pro?

The K2 Pro is the smaller option, with a 75% layout and listed dimensions of 25 x 317 x 122 mm. The K4 Pro has a 96% layout and listed dimensions of 31 x 391 x 139 mm.

Are the Keychron K2 Pro and K4 Pro hot-swappable?

Yes, both models list hot-swappable switches. Keychron says each supports many 3-pin and 5-pin MX-style switches without soldering.

Do the K2 Pro and K4 Pro support QMK and VIA?

Both keyboards list QMK and VIA support. Keychron also describes using its Launcher web app for key remapping and macros.

Can the Keychron K2 Pro and K4 Pro connect wirelessly?

Both list Bluetooth and wired connectivity, as well as a 4000mAh battery. Keychron's product descriptions say each can connect wirelessly to up to three devices and also use a USB Type-C wired connection.

Which Keychron keyboard is lighter, the K2 Pro or K4 Pro?

The K2 Pro weighs 1070 g, while the K4 Pro weighs 1280 g. The K2 Pro is the lighter choice between these two.

Do the Keychron K2 Pro and K4 Pro have RGB lighting?

Both list RGB lighting and south-facing RGB. Keychron describes more than 22 RGB backlight settings for each model.

What keycap materials are available on the Keychron K2 Pro?

The K2 Pro listing includes ABS and PBT keycap options. Keychron describes the ABS option as shine-through and the PBT option as non-shine-through.

What keycaps come with the Keychron K4 Pro?

The K4 Pro listing specifies double-shot PBT keycaps, and Keychron describes them as OSA profile. Keychron also says the keycaps aim to provide oil resistance.

Which keyboard is better for typing with a number pad?

The K4 Pro is the choice for a number pad because it uses a 96% layout. The K2 Pro's 75% layout is more compact but does not list a number pad.

What are the mounting styles on the Keychron K2 Pro and K4 Pro?

The K2 Pro lists tray, PCB, and plate mount styles, while the K4 Pro lists tray mount. Both models have a steel plate.

Compare Keychron K2 Pro vs K4 Pro Differences Side by Side

This comparison is for buyers choosing between two hot-swappable Keychron keyboards with QMK support, VIA support, Bluetooth, and wired connectivity. The K2 Pro uses a 75% layout and weighs 1070 g, while the K4 Pro uses a 96% layout and weighs 1280 g. Both offer a 4000mAh battery, a steel plate, and 1000 Hz polling, so the main decision is whether you prefer a more compact layout or the K4 Pro’s number pad. Their shared customization features make that layout and size trade-off especially important.

Model
	94	92	Select a keyboard to compare
Rating	4.9 stars (16 reviews)	4.7 stars (7 reviews)
Purchase Options
Main differences	Available in a 75% layout Built with the ISO, JIS, ANSI, ISO-DE, ISO-ES, ISO-FR, ISO-SW, ISO-UK layout standard Weighs about 1070 g Sized at 25 x 317 x 122 mm Made with a Aluminum, Plastic, ABS case Features ABS, PBT keycaps Offers Yes, Rgb, South-face, Rgb South-face, White, White South-face RGB lighting	Available in a 96% layout Built with the ANSI, ISO, ISO-DE, ISO-ES, ISO-FR, ISO-Nordic, ISO-SW, ISO-UK layout standard Weighs about 1280 g Sized at 31 x 391 x 139 mm Made with a Plastic, ABS case Features PBT, ABS keycaps Offers Yes, Rgb, White, South-face, Rgb South-face, White South-face RGB lighting
Score	Scores Performance: 81.6 Build Quality: 89.5 Productivity: 94.8 Customizability: 96 Portability: 79.3	Scores Performance: 81.5 Build Quality: 83.9 Productivity: 94.7 Customizability: 95.8 Portability: 53.5
Name	Name Keychron K2 Pro	Name Keychron K4 Pro
Release year	Release year 2022	Release year 2022
Switch Options	Switch Options Linear, Tactile, Clicky	Switch Options Linear, Tactile, Clicky
Profile	Profile Normal Profile	Profile Normal Profile
Hot Swappable	Hot Swappable	Hot Swappable
Layout Size	Layout Size 75%	Layout Size 96%
Layout Standard	Layout Standard ISO, JIS, ANSI, ISO-DE, ISO-ES, ISO-FR, ISO-SW, ISO-UK	Layout Standard ANSI, ISO, ISO-DE, ISO-ES, ISO-FR, ISO-Nordic, ISO-SW, ISO-UK
Layout Ergonomics	Layout Ergonomics Normal	Layout Ergonomics Normal
Knob Support	Knob Support	Knob Support
Display Support	Display Support	Display Support
Mac/Win Support	Mac/Win Support	Mac/Win Support
Multi-Media Keys	Multi-Media Keys	Multi-Media Keys
USB-C	USB-C	USB-C
USB passthrough	USB passthrough	USB passthrough
Connection	Connection Bluetooth, Wired, Wireless	Connection Bluetooth, Wired, Wireless
Polling Rate	Polling Rate 1000 Hz	Polling Rate 1000 Hz
Battery capacity	Battery capacity 4000 mAh	Battery capacity 4000 mAh
Hall Effect Support	Hall Effect Support	Hall Effect Support
QMK Support	QMK Support	QMK Support
VIA Support	VIA Support	VIA Support
VIAL Support	VIAL Support	VIAL Support
N-Key Rollover	N-Key Rollover	N-Key Rollover
Rapid Trigger	Rapid Trigger	Rapid Trigger
Mount Style	Mount Style Tray Mount	Mount Style Tray Mount
Screw in Stabilizers	Screw in Stabilizers	Screw in Stabilizers
Sound Dampening	Sound Dampening	Sound Dampening
Backlight	Backlight Rgb, South-face, White, White South-face	Backlight Rgb, White, South-face, White South-face
Case Colors	Case Colors	Case Colors
Case Material	Case Material Aluminum, Plastic, ABS	Case Material Plastic, ABS
Keycaps Material	Keycaps Material ABS, PBT	Keycaps Material PBT, ABS
Dimensions	Dimensions 25 x 317 x 122 mm	Dimensions 31 x 391 x 139 mm
Weight	Weight 1070g	Weight 1280g

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Pros and Trade-offs

Choose the K2 Pro if you want a 75% keyboard that is lighter and offers more listed mounting styles. Choose the K4 Pro if a 96% layout and number pad matter more than weight and compactness. Both share hot-swap support, QMK, VIA, Bluetooth, and wired connectivity, so start with the layout you prefer.

Keychron K2 Pro

+75% layout and 1070 g weight make the K2 Pro the smaller, lighter option.
+Mount styles include tray, PCB, and plate mount.
+Hot-swappable sockets support many 3-pin and 5-pin MX-style switches, according to Keychron.
+The vendor describes sound-absorbing foam, a silicone dampening bottom pad, and a steel plate.
+Three adjustable typing angles are listed by the vendor: 5°, 9.2°, and 12°.

−Its 75% layout does not offer the number pad found on the K4 Pro.
−The K2 Pro weighs 1070 g, so it is not a lightweight keyboard despite being lighter than the K4 Pro.
−The listing offers ABS or PBT keycaps, with the vendor specifying that the ABS version is shine-through and the PBT version is not.

Keychron K4 Pro

+The 96% layout includes a number pad.
+The vendor describes double-shot PBT keycaps with an OSA profile.
+Hot-swappable switches, QMK, and VIA support provide options for customizing the keyboard.
+The vendor describes sound-absorbing foam, a silicone dampening bottom pad, and a steel plate.
+Three adjustable typing angles are listed by the vendor: 3°, 7°, and 10°.

−At 1280 g, the K4 Pro is heavier than the K2 Pro.
−Its 96% layout and listed dimensions make it the larger option in this comparison.
−The metadata lists tray mount only, unlike the K2 Pro's multiple listed mount styles.

Which Keyboard Is Better for Your Needs?

The K2 Pro has the clearer advantage for travel and for buyers who want a smaller footprint or more mounting options. The K4 Pro's 96% layout makes it the more natural fit for number-pad-heavy office and content work. Gaming and programming are close calls because both share key performance and customization features, with layout preference deciding between them. Either model offers wireless and wired connectivity.

GamingTie

•Both list a 1000 Hz polling rate and N-key rollover for wired and wireless modes.
•Both are hot-swappable and offer linear, tactile, and clicky switch options.
•The K2 Pro's 75% layout takes up less space than the K4 Pro's 96% layout, while the K4 Pro includes a number pad.

OfficeKeychron K4 Pro

•The K4 Pro's 96% layout includes a number pad, which may suit number-heavy office tasks.
•Both support Bluetooth and wired connectivity, QMK, and VIA.
•The K2 Pro is lighter at 1070 g if a smaller, lighter keyboard is the priority.

ProgrammingTie

•Both support QMK and VIA, with vendor descriptions naming key remapping and macros.
•Both support Bluetooth and wired use and list compatibility with Mac and Windows.
•The K2 Pro's 75% layout is more compact, while the K4 Pro adds a number pad.

TravelKeychron K2 Pro

•The K2 Pro weighs 1070 g, compared with 1280 g for the K4 Pro.
•The K2 Pro has a 75% layout, while the K4 Pro has a larger 96% layout.
•Both list Bluetooth and wired connectivity and a 4000mAh battery.

ModdingKeychron K2 Pro

•Both keyboards are hot-swappable and support QMK and VIA.
•The K2 Pro lists tray, PCB, and plate mount styles, while the K4 Pro lists tray mount.
•The K2 Pro's vendor description specifies support for many 3-pin and 5-pin MX-style switches.

Content CreationKeychron K4 Pro

•The K4 Pro's 96% layout includes a number pad for workflows that use frequent numeric entry.
•Both list multimedia keys, Bluetooth, wired connectivity, QMK, and VIA.
•The K2 Pro offers a smaller 75% layout for buyers who prioritize a more compact desk setup.