Compare Keychron K3 V3 vs Nuphy Air75 V3 Differences Side by Side

This comparison is for buyers deciding between two premium low-profile 75% wireless keyboards. The choice is difficult because both offer hot-swappable switches, multi-device connectivity, and compact designs. The Keychron K3 V3 stands out with its open-source QMK firmware for limitless key remapping, while the Nuphy Air75 V3 counters with a much larger battery, a programmable knob, and a gasket mount for a potentially softer typing feel.

Model
	83	95	Select a keyboard to compare
Rating	0.0 stars (0 reviews)	0.0 stars (0 reviews)
Purchase Options
Main differences	Has Linear, Tactile, Clicky switch options Built with the ANSI, ISO, ISO-UK, ISO-DE, ISO-SW, ISO-Nordic layout standard Uses a Top Mount mounting style Supports Bluetooth, Wired, Wireless connectivity Equipped with a 1550 mAh battery Weighs about 540 g Sized at 19 x 306 x 116 mm Made with a ABS, Aluminum case Features PBT, ABS keycaps Offers Yes, Rgb, White, North-face, Rgb North-face, White North-face RGB lighting	Has Tactile, Linear, Clicky, Low-profile 3.0, Mechanical switch options Built with the ANSI, ISO-FR, ISO, ISO-DE, ISO-UK, JIS layout standard Comes with a knob Connects via USB-C Includes screw-in stabilizers Has built-in sound dampening Uses a Gasket Mount mounting style Supports Bluetooth, 2.4 GHz, Wired, Wireless connectivity Equipped with a 4000 mAh battery Weighs about 750 g Sized at 13 x 319 x 129 mm Made with a Aluminum, ABS, Polycarbonate, Plastic case Features PBT keycaps Offers Yes, Rgb, North-face, Rgb North-face, South-face, Rgb South-face RGB lighting
Score	Scores Performance: 82 Build Quality: 81.6 Productivity: 70.1 Customizability: 89.8 Portability: 74.7	Scores Performance: 81.8 Build Quality: 88.1 Productivity: 97.2 Customizability: 99.7 Portability: 81.5
Name	Name Keychron K3 V3	Name Nuphy Air75 V3
Release year	Release year 2024	Release year 2024
Switch Options	Switch Options Linear, Tactile, Clicky	Switch Options Tactile, Linear, Clicky, Low-profile 3.0, Mechanical
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 ANSI, ISO, ISO-UK, ISO-DE, ISO-SW, ISO-Nordic	Layout Standard ANSI, ISO-FR, ISO, ISO-DE, ISO-UK, JIS
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, 2.4 GHz, Wired, Wireless
Polling Rate	Polling Rate 1000 Hz	Polling Rate 1000 Hz
Battery capacity	Battery capacity 1550 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 Top Mount	Mount Style Gasket Mount
Screw in Stabilizers	Screw in Stabilizers	Screw in Stabilizers
Sound Dampening	Sound Dampening	Sound Dampening
Backlight	Backlight Rgb, White, North-face	Backlight Rgb, North-face, South-face
Case Colors	Case Colors	Case Colors
Case Material	Case Material ABS, Aluminum	Case Material Aluminum, ABS, Polycarbonate, Plastic
Keycaps Material	Keycaps Material PBT, ABS	Keycaps Material PBT
Dimensions	Dimensions 19 x 306 x 116 mm	Dimensions 13 x 319 x 129 mm
Weight	Weight 540g	Weight 750g

*Something incorrect or missing? Please

let me know

!

Pros and Trade-offs

Your priority dictates the choice. If you value deep, open-source firmware customization for layers and macros, the Keychron K3 V3 is the clear winner. If your needs center around all-day wireless battery life, a useful knob for quick controls, and a sleek, travel-ready form factor, the Nuphy Air75 V3 is the better fit. Both are competent low-profile keyboards, but they excel in fundamentally different areas.

Keychron K3 V3

+Supports QMK and VIA open-source firmware for extensive key remapping and macros.
+Includes multiple layers of acoustic foam (IXPE, EPDM, latex) for sound dampening.
+Offers a wide array of ISO layout options (UK, DE, Swiss, Nordic).
+Web-based Keychron Launcher allows configuration without installed software.
+Features adjustable typing angles (2.5°, 4.2°, 6.5°) for ergonomics.

−Smaller 1550mAh battery compared to the competition.
−Lacks a dedicated programmable knob.
−Hot-swap compatibility is limited to specific low-profile mechanical switches.

Nuphy Air75 V3

+Massive 4000mAh battery for long-lasting wireless use.
+Includes a programmable knob for media control or custom functions.
+Features a gasket mount design for a potentially softer typing feel.
+Thinner profile (13mm) enhances portability.
+Comes with screw-in stabilizers and sound dampening features.

−Does not support QMK or VIA firmware, relying on proprietary NuPhy IO 2.0 software.
−Fewer ISO layout options compared to the K3 V3.
−Heavier at 750g, which may affect portability despite the slim design.

Which Keyboard Is Better for Your Needs?

The Nuphy Air75 V3 takes the lead for office work, travel, and content creation, primarily due to its exceptional battery life, included knob, and portable design. The Keychron K3 V3 is the stronger choice for programming and modding, thanks to its QMK/VIA firmware support and detailed acoustic foams. For gaming, the K3 V3 has a slight edge due to its vendor's emphasis on low latency, though both share a 1000Hz polling rate.

GamingKeychron K3 V3

•The Keychron K3 V3 lists a 1000Hz polling rate in wired mode, a spec matched by the Air75 V3.
•The K3 V3's vendor page explicitly mentions low latency for competitive games.
•Both keyboards support N-key rollover for simultaneous key presses.

OfficeNuphy Air75 V3

•The Nuphy Air75 V3 has a significantly larger 4000mAh battery, promising extended wireless use.
•It includes a programmable knob for quick volume or zoom control.
•Its vendor description emphasizes Mac/iPad compatibility and includes accessories like the NuFolio for mobility.

ProgrammingKeychron K3 V3

•The Keychron K3 V3 supports QMK and VIA firmware, allowing for deep, layer-based key remapping and macros.
•Its web-based Keychron Launcher tool is highlighted for productivity and customization.
•It offers a wider selection of ISO layout options, including UK, German, Swiss, and Nordic.

TravelNuphy Air75 V3

•The Nuphy Air75 V3 is thinner at 13mm compared to the K3 V3's 19mm height.
•Its massive 4000mAh battery reduces the need for frequent charging on the go.
•Vendor accessories like the NuFolio case are specifically designed for portability.

ModdingKeychron K3 V3

•The Keychron K3 V3's QMK support provides open-source firmware for advanced customization.
•Its vendor page details multiple internal foam layers (IXPE, EPDM, latex) for acoustic tuning.
•It is hot-swappable and compatible with Gateron and Keychron low-profile mechanical switches.

Content CreationNuphy Air75 V3

•The Nuphy Air75 V3 features a dedicated, programmable knob useful for timeline scrubbing or parameter adjustment.
•Its vendor page mentions a rhythm light bar that can function as a typing speed indicator.
•The gasket mount design may offer a softer, more consistent typing feel during long sessions.