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Compare Nuphy Air75 V2 vs Keychron K3 Max Differences Side by Side

This comparison is for buyers deciding between two premium low-profile 75% wireless keyboards. Both the Nuphy Air75 V2 and Keychron K3 Max feature hot-swappable switches, QMK/VIA programmability, and tri-mode connectivity, making the choice difficult. The decision hinges on whether you prioritize a significantly larger battery and specific sound-dampening foams or require support for multiple international layouts and a different approach to typing ergonomics.

89
NuPhy Air75 V2
94
Keychron K3 Max QMK/VIA Wireless Custom Mechanical Keyboard ISO Layout Collection

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4.6 (850)
4.7 (8)
  • Has Clicky, Tactile, Linear switch options
  • Built with the ANSI layout standard
  • Equipped with a 4000 mAh battery
  • Weighs about 598 g
  • Sized at 14 x 316 x 133 mm
  • Made with a Aluminum, ABS case
  • Features PBT keycaps
  • Offers Yes, Rgb RGB lighting
  • Has Tactile, Linear, Clicky switch options
  • Built with the ISO, ISO-UK, ISO-DE, ISO-Nordic, ISO-SW, ANSI layout standard
  • Provides dedicated media keys
  • Includes screw-in stabilizers
  • Has built-in sound dampening
  • Uses a Plate Mount mounting style
  • Equipped with a 1550 mAh battery
  • Weighs about 580 g
  • Sized at 22 x 306 x 116 mm
  • Made with a ABS, Aluminum, Wood, Plastic case
  • Features PBT, ABS keycaps
  • Offers Yes, Rgb, White, North-face, Rgb North-face, White North-face RGB lighting
Scores
  • Performance: 80.7
  • Build Quality: 78
  • Productivity: 79.8
  • Customizability: 92.2
  • Portability: 79.4
Scores
  • Performance: 80.8
  • Build Quality: 86.4
  • Productivity: 94.2
  • Customizability: 92.3
  • Portability: 77.3
Name
Nuphy Air75 V2
Name
Keychron K3 Max
Release year
2023
Release year
2023
Switch Options
Clicky, Tactile, Linear
Switch Options
Tactile, Linear, Clicky
Profile
Low Profile
Profile
Low Profile
Hot Swappable
 
Hot Swappable
 
Layout Size
75%
Layout Size
75%
Layout Standard
ANSI
Layout Standard
ISO, ISO-UK, ISO-DE, ISO-Nordic, ISO-SW, ANSI
Layout Ergonomics
Normal
Layout Ergonomics
Normal
Knob Support
 
Knob Support
 
Display Support
 
Display Support
 
Mac/Win Support
 
Mac/Win Support
 
Multi-Media Keys
 
Multi-Media Keys
 
USB-C
 
USB-C
 
USB passthrough
 
USB passthrough
 
Connection
Bluetooth, 2.4 GHz, Wired, Wireless
Connection
Bluetooth, 2.4 GHz, Wired, Wireless
Polling Rate
1000 Hz
Polling Rate
1000 Hz
Battery capacity
4000 mAh
Battery capacity
1550 mAh
Hall Effect Support
 
Hall Effect Support
 
QMK Support
 
QMK Support
 
VIA Support
 
VIA Support
 
VIAL Support
 
VIAL Support
 
N-Key Rollover
 
N-Key Rollover
 
Rapid Trigger
 
Rapid Trigger
 
Mount Style
-
Mount Style
Plate Mount
Screw in Stabilizers
 
Screw in Stabilizers
 
Sound Dampening
 
Sound Dampening
 
Backlight
 
Rgb
Backlight
 
Rgb, White, North-face
Case Colors
Case Colors
Case Material
Aluminum, ABS
Case Material
ABS, Aluminum, Wood, Plastic
Keycaps Material
PBT
Keycaps Material
PBT, ABS
Dimensions
14 x 316 x 133 mm
Dimensions
22 x 306 x 116 mm
Weight
598g
Weight
580g
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Pros and Trade-offs

Your priority should guide your choice. If unmatched wireless battery life, a focus on acoustic tuning, and a vast first-party accessory catalog are most important, the Nuphy Air75 V2 is the better pick. If you need support for ISO or other international layouts, value dedicated multimedia controls and sophisticated RGB, or want more ergonomic angle options, the Keychron K3 Max is the superior keyboard. Both are excellent, capable boards that excel in programmability and wireless performance.

Nuphy Air75 V2

  • +Large 4000mAh battery for extended wireless use.
  • +Includes specific sound-dampening foams (plate poron, IXPE) and spacebar silicone.
  • +Offers a wide range of first-party accessories like keycaps, switches, and the NuFolio V3.
  • +Slightly thinner design (14mm) for a low-profile aesthetic.
  • +Explicitly lists laptop compatibility with many popular models from Apple, Microsoft, and others.
  • −Only supports ANSI layout, lacking ISO options.
  • −The vendor description does not mention dedicated multimedia keys.
  • −Includes foldable feet but only lists a single adjustable typing angle (3.5°/6.5°/8.5°).

Keychron K3 Max

  • +Supports a wide array of layouts including ANSI, ISO, ISO-UK, ISO-DE, ISO-SW, and ISO-Nordic.
  • +Features dedicated multimedia keys and advanced RGB controls like per-key and mix RGB.
  • +Offers two adjustable typing angles (3° and 7°) for ergonomics.
  • +Uses screw-in stabilizers, which are typically more stable than clip-in variants.
  • +Vendor promotes a large ecosystem of compatible switches, keycaps, and cables.
  • −Smaller 1550mAh battery compared to the Air75 V2.
  • −The vendor description notes the hot-swappable version is only compatible with Gateron or Keychron low-profile mechanical switches.
  • −No mention of specific sound-dampening foam types beyond 'IXPE acoustic foam' and 'latex foam'.

Which Keyboard Is Better for Your Needs?

The Keychron K3 Max takes a clear lead for office use due to its extensive international layout support and dedicated multimedia keys. For travel and modding, the Nuphy Air75 V2 is stronger, thanks to its larger battery, thinner profile, and detailed sound-optimizing internal materials. Gaming and programming are a tie, as both offer the core high-performance features needed. Content creators might lean toward the K3 Max for its advanced RGB lighting controls.

GamingTie
  • •Both keyboards offer a 1000Hz polling rate in 2.4GHz and wired modes for low latency.
  • •Both are hot-swappable, allowing for switch customization to personal preference.
  • •Both support N-key rollover for accurate simultaneous key presses.
OfficeKeychron K3 Max
  • •The Keychron K3 Max explicitly lists 12 multimedia keys for quick media control.
  • •It offers support for ANSI, ISO, ISO-UK, ISO-DE, ISO-SW, and ISO-Nordic layouts, catering to a global workforce.
  • •Its vendor description highlights suitability for all devices with specific Mac layout support and included keycaps for both macOS and Windows.
ProgrammingTie
  • •Both keyboards support the QMK and VIA firmware for deep key remapping and macro creation.
  • •Both feature a 75% layout that retains arrow and navigation keys while saving desk space.
  • •Each is compatible with Windows, macOS, and Linux operating systems.
TravelNuphy Air75 V2
  • •The Nuphy Air75 V2 has a larger 4000mAh battery, which its manufacturer claims offers up to 220 hours of use with lights off.
  • •It is slightly thinner at 14mm compared to the K3 Max's 17mm height.
  • •Nuphy offers dedicated travel accessories like the NuPack carrying case and NuFolio V3 keyboard folio.
ModdingNuphy Air75 V2
  • •The Nuphy Air75 V2 listing details specific internal sound-dampening materials like plate poron, IXPE foam, and spacebar silicone.
  • •Nuphy's vendor page showcases an extensive first-party ecosystem of keycaps, switches, wrist rests, and desk mats for customization.
  • •Both boards are hot-swappable, but Nuphy provides more explicit detail on mod-friendly internal construction.
Content CreationKeychron K3 Max
  • •The Keychron K3 Max features per-key RGB and mix RGB lighting control for creative backlight customization.
  • •It includes dedicated multimedia keys for controlling media playback during editing workflows.
  • •Its adjustable typing angles (3° and 7°) may offer better ergonomic support during long sessions.

Frequently Asked Questions (FAQ)

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