Compare Redragon FIZZ K617 vs SPHINX K503 Differences Side by Side

Explore the comprehensive side-by-side comparison of the Redragon FIZZ K617 and Redragon SPHINX K503 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 2021 Has Linear, Clicky switch options Supports hot-swappable switches Available in a 60% layout Built with the ANSI, ISO-DE, ISO-ES, ISO-FR, ISO-IT, ISO layout standard Connects via USB-C Uses a Bottom Mount mounting style Weighs about 590 g Sized at 38 x 99 x 36 mm Made with a Plastic case	Released in 2025 Available in a 100% layout Built with the ISO-FR, ISO layout standard Weighs about 1000 g Sized at 440 x 180 x 40 mm
Score	Scores Performance: 69.6 Build Quality: 55.5 Productivity: 53.1 Customizability: 57.3 Portability: 70.1	Scores Performance: 74.8 Build Quality: 43.1 Productivity: 50.1 Customizability: 46.9 Portability: 40.2
Name	Name Redragon FIZZ K617	Name Redragon SPHINX K503
Release year	Release year 2021	Release year 2025
Switch Options	Switch Options Linear, Clicky	Switch Options -
Profile	Profile Normal Profile	Profile Normal Profile
Hot Swappable	Hot Swappable	Hot Swappable
Layout Size	Layout Size 60%	Layout Size 100%
Layout Standard	Layout Standard ANSI, ISO-DE, ISO-ES, ISO-FR, ISO-IT, ISO	Layout Standard ISO-FR, ISO
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 Wired, Wired only
Polling Rate	Polling Rate -	Polling Rate -
Battery capacity	Battery capacity -	Battery capacity -
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 Bottom Mount	Mount Style -
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 Plastic	Case Material -
Keycaps Material	Keycaps Material -	Keycaps Material -
Dimensions	Dimensions 38 x 99 x 36 mm	Dimensions 440 x 180 x 40 mm
Weight	Weight 590g	Weight 1000g