Firstblood B21 vs Keychron K2 Pro Specs

Compare Firstblood B21 vs Keychron K2 Pro Differences Side by Side

Explore the comprehensive side-by-side comparison of the Firstblood B21 and Keychron K2 Pro and view their biggest differences. The detailed comparison table allows you to see all the essential features, specifications, and benefits of each keyboard at a glance. Whether you're looking for performance, value, or specific functionalities, this comparison tool helps you make an informed decision.

Model
Rating	0.0 stars (0 reviews)	4.9 stars (15 reviews)
Purchase Options
Main differences	Released in 2024 Has Clicky, Tactile, Linear switch options Available in a 65% layout Built with the ANSI layout standard Weighs about 818 g Sized at 46 x 148 x 317 mm Made with a Aluminum case Features PBT keycaps Offers Yes, White RGB lighting	Released in 2022 Has Linear, Tactile, Clicky switch options Supports hot-swappable switches Available in a 75% layout Built with the ISO, JIS, ANSI, ISO-DE, ISO-ES, ISO-FR, ISO-SW, ISO-UK layout standard Provides dedicated media keys Supports QMK firmware Supports VIA configuration Includes screw-in stabilizers Has built-in sound dampening Uses a Tray Mount mounting style Runs at a 1000 Hz polling rate Equipped with a 4000 mAh battery 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
Score	Scores Performance: 56.2 Build Quality: 53.8 Productivity: 54.6 Customizability: 46.3 Portability: 83.3	Scores Performance: 81.5 Build Quality: 89.6 Productivity: 94.9 Customizability: 97.5 Portability: 80.2
Name	Name Firstblood B21	Name Keychron K2 Pro
Release year	Release year 2024	Release year 2022
Switch Options	Switch Options Clicky, Tactile, Linear	Switch Options Linear, Tactile, Clicky
Profile	Profile Normal Profile	Profile Normal Profile
Hot Swappable	Hot Swappable	Hot Swappable
Layout Size	Layout Size 65%	Layout Size 75%
Layout Standard	Layout Standard ANSI	Layout Standard ISO, JIS, ANSI, ISO-DE, ISO-ES, ISO-FR, 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 -	Polling Rate 1000 Hz
Battery capacity	Battery capacity -	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 -	Mount Style Tray Mount
Screw in Stabilizers	Screw in Stabilizers	Screw in Stabilizers
Sound Dampening	Sound Dampening	Sound Dampening
Backlight	Backlight White	Backlight Rgb, South-face, White, White South-face
Case Colors	Case Colors	Case Colors
Case Material	Case Material Aluminum	Case Material Aluminum, Plastic, ABS
Keycaps Material	Keycaps Material PBT	Keycaps Material ABS, PBT
Dimensions	Dimensions 46 x 148 x 317 mm	Dimensions 25 x 317 x 122 mm
Weight	Weight 818g	Weight 1070g

FirstBlood B21 Retro Mechanical Keyboard with Cherry Switch

Keychron K2 Pro QMK/VIA Wireless Mechanical Keyboard

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0.0 stars (0 reviews)

4.9 stars (15 reviews)

Released in 2024
Has Clicky, Tactile, Linear switch options
Available in a 65% layout
Built with the ANSI layout standard
Weighs about 818 g
Sized at 46 x 148 x 317 mm
Made with a Aluminum case
Features PBT keycaps
Offers Yes, White RGB lighting

Released in 2022
Has Linear, Tactile, Clicky switch options
Supports hot-swappable switches
Available in a 75% layout
Built with the ISO, JIS, ANSI, ISO-DE, ISO-ES, ISO-FR, ISO-SW, ISO-UK layout standard
Provides dedicated media keys
Supports QMK firmware
Supports VIA configuration
Includes screw-in stabilizers
Has built-in sound dampening
Uses a Tray Mount mounting style
Runs at a 1000 Hz polling rate
Equipped with a 4000 mAh battery
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

Scores

Performance: 56.2
Build Quality: 53.8
Productivity: 54.6
Customizability: 46.3
Portability: 83.3

Scores

Performance: 81.5
Build Quality: 89.6
Productivity: 94.9
Customizability: 97.5
Portability: 80.2

Name

Firstblood B21

Name

Keychron K2 Pro

Release year

2024

Release year

2022

Switch Options

Clicky, Tactile, Linear

Switch Options

Linear, Tactile, Clicky

Profile

Normal Profile

Profile

Normal Profile

Hot Swappable

Layout Size

65%

Layout Size

75%

Layout Standard

ANSI

Layout Standard

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

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

4000 mAh

Hall Effect Support

QMK Support

VIA Support

VIAL Support

N-Key Rollover

Rapid Trigger

Mount Style

Tray Mount

Screw in Stabilizers

Sound Dampening

Backlight

White

Backlight

Rgb, South-face, White, White South-face

Case Colors

Case Material

Aluminum

Case Material

Aluminum, Plastic, ABS

Keycaps Material

PBT

Keycaps Material

ABS, PBT

Dimensions

46 x 148 x 317 mm

Dimensions

25 x 317 x 122 mm

Weight

818g

Weight

1070g

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