Keychron K3 vs K3 Pro: Low-Profile Wireless Keyboard Comparison

Compare Keychron K3 vs K3 Pro Differences Side by Side

This comparison is for users deciding between Keychron's original K3 and its upgraded K3 Pro, two popular low-profile wireless keyboards. Both share a 75% layout, hot-swappable switches, and multi-device Bluetooth, making the choice difficult. The decision hinges on whether you value the K3 Pro's added features like QMK/VIA support and a 2.4 GHz dongle, or if the simpler K3 meets your needs at a potentially lower cost.

Model
Rating	0.0 stars (0 reviews)	4.7 stars (52 reviews)
Purchase Options
Main differences	Released in 2023 Has Clicky, Tactile, Linear switch options Built with the ISO-FR, ISO, ANSI layout standard Uses a Plate Mount mounting style Made with a Aluminum, ABS case Features PBT, ABS keycaps Offers Yes, Rgb, White, North-face, Rgb North-face RGB lighting	Released in 2022 Has Linear, Tactile, Clicky switch options Built with the ISO, JIS, ISO-DE, ISO-ES, ISO-FR, ISO-Nordic, ISO-SW, ISO-UK, ANSI layout standard Supports QMK firmware Supports VIA configuration Features N-key rollover Uses a Tray Mount mounting style Runs at a 1000 Hz polling rate Weighs about 525 g Sized at 15 x 306 x 116 mm Made with a Aluminum, Plastic, ABS case Features ABS, PBT keycaps Offers Yes, Rgb, South-face, Rgb South-face, White, North-face, Rgb North-face, White North-face RGB lighting
Score	Scores Performance: 64.7 Build Quality: 61.8 Productivity: 66.1 Customizability: 70.3 Portability: 80.2	Scores Performance: 81 Build Quality: 81.4 Productivity: 79.8 Customizability: 89.1 Portability: 77.1
Name	Name Keychron K3	Name Keychron K3 Pro
Release year	Release year 2023	Release year 2022
Switch Options	Switch Options Clicky, Tactile, Linear	Switch Options Linear, Tactile, Clicky
Profile	Profile Low Profile	Profile Low Profile
Hot Swappable	Hot Swappable	Hot Swappable
Layout Size	Layout Size 75%	Layout Size 75%
Layout Standard	Layout Standard ISO-FR, ISO, ANSI	Layout Standard ISO, JIS, ISO-DE, ISO-ES, ISO-FR, ISO-Nordic, ISO-SW, ISO-UK, ANSI
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 -	Polling Rate 1000 Hz
Battery capacity	Battery capacity 1550 mAh	Battery capacity 1550 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 Plate Mount	Mount Style Tray Mount
Screw in Stabilizers	Screw in Stabilizers	Screw in Stabilizers
Sound Dampening	Sound Dampening	Sound Dampening
Backlight	Backlight Rgb, White, North-face	Backlight Rgb, South-face, White, North-face
Case Colors	Case Colors	Case Colors
Case Material	Case Material Aluminum, ABS	Case Material Aluminum, Plastic, ABS
Keycaps Material	Keycaps Material PBT, ABS	Keycaps Material ABS, PBT
Dimensions	Dimensions -	Dimensions 15 x 306 x 116 mm
Weight	Weight -	Weight 525g

Keychron K3 Ultra-schlanke kabellose mechanische Tastatur FR-ISO Layout

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0.0 stars (0 reviews)

4.7 stars (52 reviews)

Released in 2023
Has Clicky, Tactile, Linear switch options
Built with the ISO-FR, ISO, ANSI layout standard
Uses a Plate Mount mounting style
Made with a Aluminum, ABS case
Features PBT, ABS keycaps
Offers Yes, Rgb, White, North-face, Rgb North-face RGB lighting

Released in 2022
Has Linear, Tactile, Clicky switch options
Built with the ISO, JIS, ISO-DE, ISO-ES, ISO-FR, ISO-Nordic, ISO-SW, ISO-UK, ANSI layout standard
Supports QMK firmware
Supports VIA configuration
Features N-key rollover
Uses a Tray Mount mounting style
Runs at a 1000 Hz polling rate
Weighs about 525 g
Sized at 15 x 306 x 116 mm
Made with a Aluminum, Plastic, ABS case
Features ABS, PBT keycaps
Offers Yes, Rgb, South-face, Rgb South-face, White, North-face, Rgb North-face, White North-face RGB lighting

Scores

Performance: 64.7
Build Quality: 61.8
Productivity: 66.1
Customizability: 70.3
Portability: 80.2

Scores

Performance: 81
Build Quality: 81.4
Productivity: 79.8
Customizability: 89.1
Portability: 77.1

Name

Keychron K3

Name

Keychron K3 Pro

Release year

2023

Release year

2022

Switch Options

Clicky, Tactile, Linear

Switch Options

Linear, Tactile, Clicky

Profile

Low Profile

Profile

Low Profile

Hot Swappable

Layout Size

75%

Layout Size

75%

Layout Standard

ISO-FR, ISO, ANSI

Layout Standard

ISO, JIS, ISO-DE, ISO-ES, ISO-FR, ISO-Nordic, ISO-SW, ISO-UK, ANSI

Layout Ergonomics

Normal

Layout Ergonomics

Normal

Knob Support

Display Support

Mac/Win Support

Multi-Media Keys

USB-C

USB passthrough

Connection

Bluetooth, Wired, Wireless

Connection

Bluetooth, Wired, Wireless

Polling Rate

1000 Hz

Battery capacity

1550 mAh

Battery capacity

1550 mAh

Hall Effect Support

QMK Support

VIA Support

VIAL Support

N-Key Rollover

Rapid Trigger

Mount Style

Plate Mount

Mount Style

Tray Mount

Screw in Stabilizers

Sound Dampening

Backlight

Rgb, White, North-face

Backlight

Rgb, South-face, White, North-face

Case Colors

Case Material

Aluminum, ABS

Case Material

Aluminum, Plastic, ABS

Keycaps Material

PBT, ABS

Keycaps Material

ABS, PBT

Dimensions

15 x 306 x 116 mm

Weight

525g

Pros and Trade-offs

The Keychron K3 Pro is the definitive upgrade, worth the investment for anyone needing robust programmability, a reliable 2.4 GHz connection, or broader mechanical switch compatibility. Stick with the original Keychron K3 if your primary needs are a proven, ultra-slim low-profile keyboard for basic wireless typing across devices, and you do not plan on deep customization.

Keychron K3

+Emphasized ultra-slim and lightweight aluminum body design.
+Hot-swappable for Keychron's proprietary low-profile optical switches.
+Includes 17 extra keycaps for macOS/Windows customization.
+Two-level adjustable rubber feet for typing angle adjustment.

−Lacks 2.4 GHz wireless connectivity, offering only Bluetooth and wired.
−Uses proprietary low-profile optical switches, limiting third-party switch compatibility.
−No support for QMK, VIA, or advanced key remapping software.

Keychron K3 Pro

+Supports QMK and VIA firmware for extensive key remapping and macros.
+Adds a 2.4 GHz wireless connection alongside Bluetooth 5.1 and wired.
+Compatible with Gateron low-profile mechanical switches for broader modding.
+Features a 1000 Hz polling rate in wired mode and three-level adjustable typing angle.

−Heavier at 930g compared to the K3's unspecified weight, likely due to added features.
−QMK firmware does not support low-profile optical switches, limiting hot-swap to Gateron mechanical types.
−The vendor description notes some users experienced Bluetooth range limitations in specific setups like HTPC.

Which Keyboard Is Better for Your Needs?

The K3 Pro is the clear choice for users who prioritize customization, whether for gaming latency, programming macros, or content creation shortcuts, thanks to its QMK support and 2.4 GHz wireless. The original K3 remains a competent, ultra-slim option for general office use and travel where advanced programmability is not required. For modders, the K3 Pro's mechanical switch compatibility and open firmware offer a significantly more flexible platform.

GamingKeychron K3 Pro

•The K3 Pro lists a 1000 Hz polling rate in wired mode, which the K3's specifications do not mention.
•The K3 Pro includes a 2.4 GHz wireless connection for lower latency gaming, while the K3 is limited to Bluetooth and wired.
•The K3 Pro vendor page states its 1000 Hz polling rate is engineered for competitive gaming.

OfficeTie

•Both keyboards offer Bluetooth connectivity for switching between multiple devices like laptops and tablets.
•Both are explicitly compatible with macOS and Windows and include keycaps for both operating systems.
•Both feature a 75% layout with multimedia keys for compact productivity.

ProgrammingKeychron K3 Pro

•The K3 Pro supports QMK and VIA firmware for deep key remapping and macro creation, which the K3 does not.
•The K3 Pro vendor description mentions using the Keychron Launcher web app to master any keys or macro commands.
•The K3 Pro supports a wider array of layout standards (ISO, JIS, ANSI), which may benefit international programmers.

TravelKeychron K3

•The K3 vendor description emphasizes its ultra-slim, lightweight aluminum body as one of the thinnest in the world.
•Both share the same 1550mAh battery, but the K3's potentially slimmer profile could offer a marginal portability advantage.
•Both offer Bluetooth, eliminating the need to carry a dongle, though the K3 Pro's 2.4 GHz option requires one.

ModdingKeychron K3 Pro

•The K3 Pro supports QMK/VIA open-source firmware, allowing for extensive software customization not available on the K3.
•The K3 Pro is compatible with Gateron low-profile mechanical switches, while the K3 uses proprietary Keychron optical switches, limiting third-party switch options.
•The K3 Pro vendor page mentions redesigned stabilizers for less wobble on larger keys.

Content CreationKeychron K3 Pro

•The K3 Pro's QMK/VIA support allows for custom shortcuts and macros tailored to editing software workflows.
•The K3 Pro offers three levels of adjustable typing angle for ergonomic support during long sessions, while the K3 has a fixed 6° angle with two-level feet.
•The ability to connect via 2.4 GHz (K3 Pro) can provide a more stable connection for shortcut-heavy work compared to Bluetooth-only on the K3.

Frequently Asked Questions (FAQ)