Keychron K3 Max vs NuPhy Air75 V3

What published reviews say about each, where the two differ, and who each one suits.

Summed up from 16 published reviews

Keychron

K3 Max

A compact, quiet travel-focused keyboard with strong wireless versatility, but limited gaming, no numpad, and variant-specific compromises.

Best for: Travelers and minimalist setups prioritizing portability, quiet typing, and wireless flexibility.
Skip it if: Gamers needing fast gaming switches or spreadsheet users requiring a numeric keypad.

PriceToday's price on AmazonView on Amazon

What reviewers say about the Keychron K3 Max

NuPhy

Air75 V3

The NuPhy Air75 V3 is a premium 75% keyboard offering refined typing, strong wireless features, and long battery life, but its price, weight, and customization limits may deter buyers.

Best for: Writers and mobile workers valuing quiet typing and wireless freedom.
Skip it if: Budget buyers wanting extensive firmware and switch customization.

PriceToday's price on AmazonView on Amazon

What reviewers say about the NuPhy Air75 V3

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Specs side by side

Spec	Keychron K3 Max	NuPhy Air75 V3
Best for	Typing, Office	Gaming, Office, Typing
Size	75%	75%
Wireless	Yes	Yes
Hot-swap	Yes	Yes
Backlight	RGB	RGB

Rows where the two differ come first.

Where only one fits

use: Air75 V3Games

What reviewers like, and what they don't

Keychron K3 Max

Highly portable 75% design suits travel and space-saving desks. 1 2 4 7
Smooth, quiet typing stays comfortable for longer sessions. 1 2 6 8
Bluetooth and USB-C, with 2.4GHz on supported variants, enable multi-device use. 1 2 4 5
Battery life reaches up to roughly 80 hours with lighting off. 5 8
QMK/VIA remapping supports detailed workflow customization. 2 4 5 6
Fast gaming can trigger adjacent-key mis-hits from short travel. 1 2
No numeric keypad limits spreadsheet-heavy workflows. 1 5 7
Some UK ISO keycaps block lighting; switch fitting can be tricky. 4 6
Premium pricing can exceed similarly featured alternatives. 1 3 8

NuPhy Air75 V3

Refined, quiet typing and acoustics suit long work sessions. 1 3 4 5
Solid build quality improves over the previous generation. 1 4 7 8
Long battery life reaches claimed 1,200 hours with RGB off. 3 5 6 7
Triple-mode connectivity supports Bluetooth, 2.4 GHz, and USB-C. 3 5 6 8
Hot-swappable switches support easier customization and replacement. 1 4 5 6
Premium pricing exceeds many similarly capable competitors. 1 4 6 7
Added weight can bother commuters carrying full bags. 1 4 5 7
Limited switch choices and shallow customization frustrate enthusiasts. 1 4 5 6
RGB lacks per-key lighting and consumes more battery. 3 5 6 8

Ranked in our guides

Guide	K3 Max	Air75 V3
Best 75 percent keyboards	#6	#3

Sources

We don't test products ourselves. This page sums up 16 published reviews, read on October 21, 2026; each point above links to the reviews that make it.