Keychron K3 (Version 2) vs NuPhy Air75

Which Keyboard Is Better?

Products

Keychron K3 (Version 2)
NuPhy Air75

Tested using Methodology v1.3.1

Updated May 30, 2025 04:30 PM

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Tested using Methodology v1.3.1

Updated Oct 21, 2024 05:28 PM

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Our Verdict

Keychron K3 (Version 2)

NuPhy Air75

The Keychron K3 (Version 2) and the NuPhy Air75 are two compact, low-profile mechanical keyboards, but they're for different uses. The Keychron is better suited to an office environment, whereas the NuPhy is better-suited to gaming since it has better latency. The NuPhy has companion software, which the Keychron lacks, so you can program macros onto keys and thoroughly customize the RGB backlighting. On the other hand, the backlighting shines through the key legends on the Keychron, meaning you can see your keys in the dark. Both keyboards are hot-swappable, meaning you can change out the stock switches without soldering.

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Variants

  • K5 (100%)
  • K3 (Version 2) (75%)
  • Air75 (Grey)

Check Price

75%
K3 (Version 2)
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Grey
Air75
B&H
 
Grey
Air75
BestBuy.com
 
Grey
Air75
NuPhy

Main Differences for
Gaming

Threshold 

0.10

Gaming 
 

0.0
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Full Comparison

Design

Dimensions 
 

Top Picture  

Keychron K3 (Version 2) Top Picture Sample

SAMPLE

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NuPhy Air75 Top Picture Sample

SAMPLE

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Size 
 

Locked
Locked

Height 
 

Lock" (Lock cm)
Lock" (Lock cm)

Width  

Lock" (Lock cm)
Lock" (Lock cm)

Depth 
 

Lock" (Lock cm)
Lock" (Lock cm)

Depth With Wrist Rest 
 

N/A
N/A

Weight 
 

Lock lbs (Lock kg)
Lock lbs (Lock kg)
Show Text 

Build Quality 
 

N/A
N/A

Build Quality Close Up  

Keychron K3 (Version 2) Build Quality Close Up Sample

SAMPLE

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NuPhy Air75 Build Quality Close Up Sample

SAMPLE

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Keycap Material  

Locked
Locked
Show Text 

Ergonomics 
 

N/A
N/A

Side Picture  

Keychron K3 (Version 2) Side Picture Sample

SAMPLE

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NuPhy Air75 Side Picture Sample

SAMPLE

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Curved/Angled 
 

Locked
Locked

Split Keyboard 
 

Locked
Locked

Key Alignment 
 

Locked
Locked

Minimum Incline 
 

Lock°
Lock°

Medium Incline 
 

Lock°
N/A

Maximum Incline 
 

Lock°
Lock°

Home Row Height 
 

Lock mm (Lock")
Lock mm (Lock")
Show Text 

Hardware Customizability 
 

N/A
N/A

Customizability Overview  

Keychron K3 (Version 2) Customizability Overview Sample

SAMPLE

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NuPhy Air75 Customizability Overview Sample

SAMPLE

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Replaceable Cherry Stabilizers 
 

Locked
Locked

Stabilizer Fixation 
 

Locked
Locked

Spacebar Stabilizer Size 
 

Locked
Locked

Size Of Right Mod Keys 
 

Locked
Locked

Hot-Swappable Switches 
 

Locked
Locked

Switch Stem Shape 
 

Locked
Locked

Switch PCB Socket 
 

Locked
Locked

North-Facing Cherry MX Interference 
 

Locked
Locked
Show Text 

Backlight Features 
 

N/A
N/A

Backlighting Picture  

Keychron K3 (Version 2) Backlighting Picture Sample

SAMPLE

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NuPhy Air75 Backlighting Picture Sample

SAMPLE

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Brightness Max  

Keychron K3 (Version 2) Brightness Max Sample

SAMPLE

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NuPhy Air75 Brightness Max Sample

SAMPLE

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Backlighting  

Locked
Locked

Brightness Min  

Keychron K3 (Version 2) Brightness Min Sample

SAMPLE

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NuPhy Air75 Brightness Min Sample

SAMPLE

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RGB 
 

Locked
Locked

Per-Key Backlighting 
 

Locked
Locked

Effects 
 

Locked
Locked

Software Controllable 
 

Locked
Locked
Show Text 

Backlight Clarity 
 

N/A
N/A

White Shot  

Keychron K3 (Version 2) White Shot Sample

SAMPLE

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NuPhy Air75 White Shot Sample

SAMPLE

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Show Text 

Cable & Connector  

Connectivity  

Locked
Locked

Detachable 
 

Locked
Locked

Length  

Lock ft (Lock m)
Lock ft (Lock m)

Connector (Keyboard side) 
 

Locked
Locked
Show Text 

Wireless Versatility 
 

N/A
N/A

Bluetooth 
 

Locked
Locked

Bluetooth Multi-Device Pairing 
 

Locked
Locked

Proprietary Receiver 
 

Locked
Locked

Battery Type 
 

Locked
Locked
Show Text 

Macro Keys And Programming 
 

N/A
N/A

Dedicated Macro Keys Count  

Lock
Lock

Onboard Macro Programming 
 

Locked
Locked

Macro Programming With Software 
 

Locked
Locked

Extra Features 
 

Extra Features  

Keychron K3 (Version 2) Extra Features Sample

SAMPLE

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NuPhy Air75 Extra Features Sample

SAMPLE

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Media Keys 
 

Locked
Locked

Trackpad / Trackball  

Locked
Locked

Scroll Wheel 
 

Locked
Locked

Control Knob 
 

Locked
Locked

USB Passthrough 
 

Locked
Locked

Numpad  

Locked
Locked

Windows Key Lock 
 

Locked
Locked

Lock Indicator  

Locked
Locked
Show Text 

In The Box  

Bundle Picture  

Keychron K3 (Version 2) Bundle Picture Sample

SAMPLE

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NuPhy Air75 Bundle Picture Sample

SAMPLE

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Show Text 
Typing Experience

Typing Quality 
 

N/A
N/A

Key Spacing 
 

Lock mm (Lock")
Lock mm (Lock")
Show Text 

Typing Noise 
 

N/A
N/A

Typing Sample  

Keychron K3 (Version 2) Typing Sample Sample

SAMPLE

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NuPhy Air75 Typing Sample Sample

SAMPLE

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Average Loudness 
 

Lock dBA
Lock dBA

High Pitch Clicks 
 

Locked
Locked
Show Text 

Switches 
 

Wobble Video  

Keychron K3 (Version 2) Wobble Video Sample

SAMPLE

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NuPhy Air75 Wobble Video Sample

SAMPLE

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Switch Name 
 

Locked
Locked

Switch Type 
 

Locked
Locked

Feel 
 

Locked
Locked

Analog 
 

Locked
Locked
Show Text 

Keystrokes 
 

Key Switch Actuation Graph  

Keychron K3 (Version 2) Key Switch Actuation Graph Sample

SAMPLE

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NuPhy Air75 Key Switch Actuation Graph Sample

SAMPLE

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Operating Force 
 

Lock gf
Lock gf

Actuation Force 
 

Lock gf
Lock gf

Pre-Travel 
 

Lock mm
Lock mm

Total Travel 
 

Lock mm
Lock mm
Show Text 
Performance

Single-Key Latency 
 

N/A
N/A

Single-Key Latency Graph  

Keychron K3 (Version 2) Single-Key Latency Graph Sample

SAMPLE

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NuPhy Air75 Single-Key Latency Graph Sample

SAMPLE

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Best Connection 
 

Lock ms
Lock ms

Best Connection Std Dev  

±Lock ms
±Lock ms

Wired 
 

Lock ms
Lock ms

Receiver 
 

N/A
Lock ms

Bluetooth 
 

Lock ms
Lock ms

PCB (Estimated) 
 

Lock ms
Lock ms
Show Text 

Multi-Key Latency 
 

N/A
N/A

Latency Video  

Keychron K3 (Version 2) Latency Video Sample

SAMPLE

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NuPhy Air75 Latency Video Sample

SAMPLE

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Multi-Key Latency Graph  

Keychron K3 (Version 2) Multi-Key Latency Graph Sample

SAMPLE

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NuPhy Air75 Multi-Key Latency Graph Sample

SAMPLE

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Connection Evaluated  

Locked
Locked

Key Press 
 

Lock ms
Lock ms

Key Release 
 

Lock ms
Lock ms
Show Text 

Data Transmission 
 

N/A
N/A

Multi-Key Raw USB  

Keychron K3 (Version 2) Multi-Key Raw USB Sample

SAMPLE

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NuPhy Air75 Multi-Key Raw USB Sample

SAMPLE

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Connection Evaluated  

Locked
Locked

USB Polling Rate 
 

Lock Hz
Lock Hz

Effective Update Rate 
 

Lock Hz
Lock Hz

N-Key Rollover (NKRO) 
 

Locked
Locked

Multiple Keys Per USB Report 
 

Locked
Locked
Show Text 

Chord Split 
 

N/A
N/A

Chord Split Graph  

Keychron K3 (Version 2) Chord Split Graph Sample

SAMPLE

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NuPhy Air75 Chord Split Graph Sample

SAMPLE

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4 Chord Split Delay 
 

Lock ms
Lock ms

8 Chord Split Delay 
 

Lock ms
Lock ms
Show Text 
Software and Operating System

Configuration Software 
 

Software Tour  

Keychron K3 (Version 2) Software Tour Sample

SAMPLE

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NuPhy Air75 Software Tour Sample

SAMPLE

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Software Name  

Locked
Locked

Software Windows Compatible 
 

Locked
Locked

Software macOS Compatible 
 

Locked
Locked

Onboard Memory 
 

Locked
Locked

Profiles 
 

Locked
Locked
Show Text 

Computer Compatibility 
 

N/A
N/A

Windows 
 

Locked
Locked

macOS 
 

Locked
Locked

Linux (Ubuntu 22) 
 

Locked
Locked

Media Key Compatibility 
 

Locked
Locked
Show Text 

Wireless Mobile Compatibility 
 

N/A
N/A

Android 
 

Locked
Locked

iOS 
 

Locked
Locked

iPadOS 
 

Locked
Locked

Media Key Compatibility 
 

Locked
Locked
Show Text 

Check Price

75%
K3 (Version 2)
SEE PRICE
Amazon.com
 
Grey
Air75
B&H
 
Grey
Air75
BestBuy.com
 
Grey
Air75
NuPhy

Keychron K3 (Version 2)

NuPhy Air75

Comments

  1. Comparison

Keychron K3 (Version 2) vs NuPhy Air75: Main Discussion

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