Get insider access
Preferred store
Notice: Your browser is not supported or outdated so some features of the site might not be available.
Notice: Like what we do? We're currently hiring a Staff Writer for Computers. Join our team!
  1. Table of Contents
  2. Top
  3. Main Differences
  4. Design
    1. Dimensions
    2. Build Quality
    3. Ergonomics
    4. Hardware Customizability
    5. Backlight Features
    6. Backlight Clarity
    7. Cable & Connector
    8. Wireless Versatility
    9. Macro Keys And Programming
    10. Extra Features
    11. In The Box
  5. Typing Experience
    1. Typing Quality
    2. Typing Noise
    3. Switches
    4. Keystrokes
  6. Performance
    1. Single-Key Latency
    2. Multi-Key Latency
    3. Data Transmission
    4. Chord Split
  7. Software and Operating System
    1. Configuration Software
    2. Computer Compatibility
    3. Wireless Mobile Compatibility
  8. Comments

Keychron K3 (Version 2) vs NuPhy Air75

Side-by-Side Comparison

Products

Keychron K3 (Version 2)
NuPhy Air75

Tested using Methodology v1.3.1

Updated Nov 27, 2023 05:20 PM

SEE PRICE
Amazon.com

Tested using Methodology v1.3.1

Updated Oct 21, 2024 05:28 PM

SEE PRICE
Amazon.com
Keychron K3 (Version 2) Picture
NuPhy Air75 Picture
  1. Recommended in 1 article:
  2. Mac

Variants

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

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.

0 

Check Price

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

Main Differences for
Gaming

Threshold 

0.10

Gaming 

7.8
7.8

Backlight Clarity 
 

8.0
4.0

Backlight Features 
 

8.5
10

Multi-Key Latency 
 

7.3
6.5

Data Transmission 
 

6.9
8.3

Full Comparison

Design

Dimensions 
 

Top Picture  

Keychron K3 (Version 2) Top Picture
NuPhy Air75 Top Picture

Size 
 

Compact (75%)
Compact (75%)

Height 
 

0.9" (2.2 cm)
0.9" (2.2 cm)

Width  

12.0" (30.5 cm)
12.5" (31.7 cm)

Depth 
 

4.6" (11.6 cm)
5.2" (13.3 cm)

Depth With Wrist Rest 
 

N/A
N/A

Weight 
 

1.06 lbs (0.480 kg)
1.22 lbs (0.554 kg)
Show Text 

Build Quality 
 

8.0
8.5

Build Quality Close Up  

Keychron K3 (Version 2) Build Quality Close Up
NuPhy Air75 Build Quality Close Up

Keycap Material  

ABS
PBT
Show Text 

Ergonomics 
 

7.0
7.0

Side Picture  

Keychron K3 (Version 2) Side Picture
NuPhy Air75 Side Picture

Curved/Angled 
 

No
No

Split Keyboard 
 

No
No

Key Alignment 
 

Staggered
Staggered

Minimum Incline 
 

2.5°
2.5°

Medium Incline 
 

N/A

Maximum Incline 
 

6.5°

Home Row Height 
 

20.0 mm (0.8")
19.6 mm (0.8")
Show Text 

Hardware Customizability 
 

4.9
8.3

Customizability Overview  

Keychron K3 (Version 2) Customizability Overview
NuPhy Air75 Customizability Overview

Replaceable Cherry Stabilizers 
 

Mixed
Yes

Stabilizer Fixation 
 

Plate-Mounted
Plate-Mounted

Spacebar Stabilizer Size 
 

6.25u
6.25u

Size Of Right Mod Keys 
 

Non-Standard
1u

Hot-Swappable Switches 
 

No
Yes

Switch Stem Shape 
 

Low Profile Cherry MX Style
Low Profile Cherry MX Style

Switch PCB Socket 
 

Soldered
Non-Cherry Pinout

North-Facing Cherry MX Interference 
 

No
No
Show Text 

Backlight Features 
 

8.5
10

Backlighting Picture  

Keychron K3 (Version 2) Backlighting Picture
NuPhy Air75 Backlighting Picture

Brightness Max  

Keychron K3 (Version 2) Brightness Max
NuPhy Air75 Brightness Max

Backlighting  

Yes
Yes

Brightness Min  

Keychron K3 (Version 2) Brightness Min
NuPhy Air75 Brightness Min

RGB 
 

Yes
Yes

Per-Key Backlighting 
 

Yes
Yes

Effects 
 

Yes
Yes

Software Controllable 
 

No
Yes
Show Text 

Backlight Clarity 
 

8.0
4.0

White Shot  

Keychron K3 (Version 2) White Shot
NuPhy Air75 White Shot
Show Text 

Cable & Connector  

Connectivity  

Wireless
Wireless

Detachable 
 

Yes (Wired Mode and Charge)
Yes (Wired Mode and Charge)

Length  

4.0 ft (1.2 m)
4.9 ft (1.5 m)

Connector (Keyboard side) 
 

USB type-C
USB type-C
Show Text 

Wireless Versatility 
 

10
10

Bluetooth 
 

Yes
Yes

Bluetooth Multi-Device Pairing 
 

3
3

Proprietary Receiver 
 

No
Yes

Battery Type 
 

Rechargeable
Rechargeable
Show Text 

Macro Keys And Programming 
 

0.0
4.0

Dedicated Macro Keys Count  

0
0

Onboard Macro Programming 
 

No
No

Macro Programming With Software 
 

No
Yes

Extra Features 
 

Extra Features  

Keychron K3 (Version 2) Extra Features
NuPhy Air75 Extra Features

Media Keys 
 

Non-Dedicated
Non-Dedicated

Trackpad / Trackball  

No
No

Scroll Wheel 
 

No
No

Control Knob 
 

No
No

USB Passthrough 
 

No
No

Numpad  

No
No

Windows Key Lock 
 

No
No

Lock Indicator  

Caps Lock
Caps Lock
Show Text 

In The Box  

Bundle Picture  

Keychron K3 (Version 2) Bundle Picture
NuPhy Air75 Bundle Picture
Show Text 
Typing Experience

Typing Quality 
 

7.0
7.5

Key Spacing 
 

19.0 mm (0.748")
19.0 mm (0.748")
Show Text 

Typing Noise 
 

9.3
7.7

Typing Sample  

Average Loudness 
 

42.0 dBA
51.3 dBA

High Pitch Clicks 
 

No
No
Show Text 

Switches 
 

Wobble Video  

Switch Name 
 

Keychron Low Profile Optical Brown
Gateron Low Profile Brown

Switch Type 
 

Optical
Mechanical

Feel 
 

Tactile
Tactile

Analog 
 

No
No
Show Text 

Keystrokes 
 

Key Switch Actuation Graph  

See details on graph tool
See details on graph tool

Operating Force 
 

57 gf
57 gf

Actuation Force 
 

46 gf
47 gf

Pre-Travel 
 

1.1 mm
1.7 mm

Total Travel 
 

2.6 mm
2.8 mm
Show Text 
Performance

Single-Key Latency 
 

7.1
7.4

Single-Key Latency Graph  

See details on graph tool
See details on graph tool

Best Connection 
 

16.4 ms
16.9 ms

Best Connection Std Dev  

±4.9 ms
±2.7 ms

Wired 
 

16.4 ms
16.9 ms

Receiver 
 

N/A
24.0 ms

Bluetooth 
 

29.6 ms
42.5 ms

PCB (Estimated) 
 

15.6 ms
15.5 ms
Show Text 

Multi-Key Latency 
 

7.3
6.5

Latency Video  

Multi-Key Latency Graph  

See details on graph tool
See details on graph tool

Connection Evaluated  

Wired
Receiver

Key Press 
 

16.2 ms
23.7 ms

Key Release 
 

19.8 ms
25.9 ms
Show Text 

Data Transmission 
 

6.9
8.3

Multi-Key Raw USB  

Keychron K3 (Version 2) Multi-Key Raw USB
NuPhy Air75 Multi-Key Raw USB

Connection Evaluated  

Wired
Receiver

USB Polling Rate 
 

1,000 Hz
1,000 Hz

Effective Update Rate 
 

125 Hz
500 Hz

N-Key Rollover (NKRO) 
 

Yes
Yes

Multiple Keys Per USB Report 
 

Yes
Yes
Show Text 

Chord Split 
 

9.4
8.8

Chord Split Graph  

See details on graph tool
See details on graph tool

4 Chord Split Delay 
 

2.0 ms
2.8 ms

8 Chord Split Delay 
 

5.2 ms
12.9 ms
Show Text 
Software and Operating System

Configuration Software 
 

Software Tour  

Software Name  

No Software
NuPhy Console

Software Windows Compatible 
 

No
Yes

Software macOS Compatible 
 

No
No

Onboard Memory 
 

No
Yes

Profiles 
 

No Profile
6+
Show Text 

Computer Compatibility 
 

10
10

Windows 
 

Fully Compatible
Fully Compatible

macOS 
 

Fully Compatible
Fully Compatible

Linux (Ubuntu 22) 
 

Fully Compatible
Fully Compatible

Media Key Compatibility 
 

Windows, MacOS & Linux
Windows, MacOS & Linux
Show Text 

Wireless Mobile Compatibility 
 

10
10

Android 
 

Fully Compatible
Fully Compatible

iOS 
 

Fully Compatible
Fully Compatible

iPadOS 
 

Fully Compatible
Fully Compatible

Media Key Compatibility 
 

Android, iPhone & iPad
Android, iPhone & iPad
Show Text 

Check Price

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

Keychron K3 (Version 2)

NuPhy Air75

Comments

  1. Comparison

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

What do you think of these products? Let us know below.


Looking for a personalized buying advice from the RTINGS.com experts? Insiders have direct access to buying advice on our insider forum.

PreviewBack to editorFormat guide
No comments yet, refresh to see new ones