Compare Redragon PENUMBRA K687 vs Bat Knight BK75 Differences Side by Side

Explore the comprehensive side-by-side comparison of the Redragon PENUMBRA K687 and Bat Knight BK75 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.

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Main differences	Released in 2025 Connects via USB-C Has built-in sound dampening Supports Wired, Wired only connectivity Weighs about 1500 g Sized at 43 x 133 x 43 mm Made with a Aluminum case	Released in 2023 Compatible with both Mac and Windows Supports Bluetooth, 2.4 GHz, Wired, Wireless connectivity Runs at a 1000 Hz polling rate Equipped with a 4000 mAh battery Weighs about 1400 g Sized at 46 x 327 x 150 mm Made with a Plastic case Features PBT keycaps
Score	Scores Performance: 79.3 Build Quality: 73 Productivity: 71.2 Customizability: 61.5 Portability: 60.1	Scores Performance: 78.9 Build Quality: 60.6 Productivity: 62.9 Customizability: 67.5 Portability: 75.7
Name	Name Redragon PENUMBRA K687	Name Bat Knight BK75
Release year	Release year 2025	Release year 2023
Switch Options	Switch Options Linear	Switch Options Linear
Profile	Profile Normal Profile	Profile Normal Profile
Hot Swappable	Hot Swappable	Hot Swappable
Layout Size	Layout Size 75%	Layout Size 75%
Layout Standard	Layout Standard ANSI	Layout Standard 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 Wired, Wired only	Connection Bluetooth, 2.4 GHz, 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 Gasket Mount	Mount Style Gasket Mount
Screw in Stabilizers	Screw in Stabilizers	Screw in Stabilizers
Sound Dampening	Sound Dampening	Sound Dampening
Backlight	Backlight Rgb	Backlight Rgb
Case Colors	Case Colors	Case Colors
Case Material	Case Material Aluminum	Case Material Plastic
Keycaps Material	Keycaps Material -	Keycaps Material PBT
Dimensions	Dimensions 43 x 133 x 43 mm	Dimensions 46 x 327 x 150 mm
Weight	Weight 1500g	Weight 1400g