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  1. Table of Contents
  2. Top
  3. Main Differences
  4. Design
    1. Style
    2. Comfort
    3. Controls
    4. Breathability
    5. Portability
    6. Case
    7. Build Quality
    8. Stability
    9. Headshots 1
    10. Headshots 2
    11. Top
    12. In The Box
  5. Sound
    1. Sound Profile
    2. Frequency Response Consistency
    3. Raw Frequency Response
    4. Bass Accuracy
    5. Mid Accuracy
    6. Treble Accuracy
    7. Peaks/Dips
    8. Imaging
    9. Passive Soundstage
    10. Virtual Soundstage
    11. Weighted Harmonic Distortion
    12. Test Settings
  6. Isolation
    1. Noise Isolation
    2. Leakage
  7. Microphone
    1. Microphone Style
    2. Recording Quality
    3. Noise Handling
  8. Active Features
    1. Battery
    2. App Support
  9. Connectivity
    1. Bluetooth
    2. Non-Bluetooth Wireless
    3. Wired
    4. PC Compatibility
    5. PlayStation Compatibility
    6. Xbox Compatibility
    7. Base/Dock
  10. Comments

KZ ZSN vs KZ ZST

Side-by-Side Comparison

Products

KZ ZSN
KZ ZST

Tested using Methodology v1.5

Updated Jan 15, 2024 01:41 PM

SEE PRICE
Amazon.com

Tested using Methodology v1.5

Updated Jan 15, 2024 03:00 PM

SEE PRICE
Amazon.com
KZ ZSN Picture
KZ ZST Picture
  1. Recommended in 1 article:
  2. Earbuds Under $50

Variants

  • ZSN (Black, mic)
  • ZSN (Black, no mic)
  • ZSN (Cyan, mic)
  • ZSN (Cyan, no mic)
  • ZSN (Purple, mic)
  • ZSN (Purple, no mic)
  • ZST (Black, mic)
  • ZST (Black, no mic)
  • ZST (Colorful, mic)
  • ZST (Colorful, no mic)

Our Verdict

KZ ZSN

KZ ZST

The KZ ZSN and KZ ZST are very similar headphones with slight differences. The ZSN feel a bit more high-end thanks to the metal-like backplate on their earbuds. Some may find them overly sharp, but both headphones have very similar sound profiles. That said, the treble of the ZSN is more uneven. Other than that, they are practically identical and your choice will rely on which headphones you think look the best.

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Black, no mic
ZSN
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Black, no mic
ZST
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Cyan, no mic
ZSN
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Colorful, no mic
ZST
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Purple, no mic
ZSN
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Main Differences for

Threshold 

0.10

Neutral Sound 

6.7
6.5

Bass Accuracy 
 

7.4
6.6

Full Comparison

Design

Style  

Design Picture 2  

KZ ZSN Design Picture 2
KZ ZST Design Picture 2

Type  

In-ear
In-ear

Enclosure  

Closed-Back
Closed-Back

Wireless  

No
No

Transducer  

Balanced Armature
Hybrid

Show text

Comfort 
 

7.0
7.0

Comfort Picture  

KZ ZSN Comfort Picture
KZ ZST Comfort Picture

Weight  

0.06 lbs
0.05 lbs

Clamping Force 
 

0 lbs
0 lbs

Show text

Controls 
 

0.0
0.0

Controls Picture  

KZ ZSN Controls Picture
KZ ZST Controls Picture

OS Compatibility 
 

No Controls
No Controls

Ease Of Use  

No Controls
No Controls

Feedback  

No Controls
No Controls

Call/Music Control  

No
No

Volume Control  

No
No

Microphone Control  

No
No

Channel Mixing 
 

No
No

Noise Cancelling Control  

No
No

Talk-Through 
 

No
No

Additional Controls  

No
No

Show text

Breathability 
 

9.2
9.2

Breathability After Picture  

KZ ZSN Breathability After Picture
KZ ZST Breathability After Picture

Avg.Temp.Difference  

0.8 °C
0.8 °C

Show text

Portability 
 

8.6
8.6

Portability Picture  

KZ ZSN Portability Picture
KZ ZST Portability Picture

 

3.0" (7.6 cm)
2.5" (6.4 cm)

 

2.0" (5.1 cm)
2.0" (5.1 cm)

 

1.0" (2.5 cm)
1.1" (2.8 cm)

Volume  

6.00 in³ (98.32 cm³)
6.00 in³ (98.32 cm³)

Transmitter Required  

No
No

Show text

Case 
 

N/A
0.0

Case Picture  

KZ ZSN Case Picture
KZ ZST Case Picture

Type  

No case
No case

 

N/A
N/A

 

N/A
N/A

 

N/A
N/A

Volume  

N/A
N/A

Show text

Build Quality 
 

8.0
7.5

Build Quality Picture  

KZ ZSN Build Quality Picture
KZ ZST Build Quality Picture

Show text

Stability 
 

7.5
7.5

Stability Picture  

KZ ZSN Stability Picture
KZ ZST Stability Picture

Show text

Headshots 1  

Angled Picture  

KZ ZSN Angled Picture
KZ ZST Angled Picture

Side Picture  

KZ ZSN Side Picture
KZ ZST Side Picture

Headshots 2  

Front Picture  

KZ ZSN Front Picture
KZ ZST Front Picture

Rear Picture  

KZ ZSN Rear Picture
KZ ZST Rear Picture

Top  

Top Picture  

KZ ZSN Top Picture
KZ ZST Top Picture

In The Box  

In The Box Picture  

KZ ZSN In The Box Picture
KZ ZST In The Box Picture

Show text

Sound

Sound Profile 
 

Frequency Response  

See details on graph tool
See details on graph tool

Bass Amount 
 

0.15 dB
1.13 dB

Treble Amount 
 

-2.92 dB
-1.04 dB

Frequency Response Consistency 
 

7.9
9.6

Consistency L  

See details on graph tool
See details on graph tool

Consistency R  

See details on graph tool
See details on graph tool

Avg. Std. Deviation 
 

0.41 dB
0.09 dB

Show text

Raw Frequency Response 
 

Raw FR L  

See details on graph tool
See details on graph tool

Raw FR R  

See details on graph tool
See details on graph tool

Bass Accuracy 
 

7.4
6.6

Bass  

See details on graph tool
See details on graph tool

Std. Err. 
 

3.87 dB
5.48 dB

Low-Frequency Extension 
 

10.91 Hz
10 Hz

Low-Bass 
 

1.43 dB
3.73 dB

Mid-Bass 
 

4.24 dB
6.28 dB

High-Bass 
 

5.61 dB
7.23 dB

Show text

Mid Accuracy 
 

7.9
7.6

Mid  

See details on graph tool
See details on graph tool

Std. Err. 
 

2.81 dB
3.17 dB

Low-Mid 
 

3.4 dB
4.38 dB

Mid-Mid 
 

-0.02 dB
0.06 dB

High-Mid 
 

2.95 dB
2.42 dB

Show text

Treble Accuracy 
 

6.4
6.1

Treble  

See details on graph tool
See details on graph tool

Std. Err. 
 

5.28 dB
5.59 dB

Low-Treble 
 

2.9 dB
6.52 dB

Mid-Treble 
 

-1.69 dB
1.44 dB

High-Treble 
 

-8.27 dB
-4.21 dB

Show text

Peaks/Dips 
 

6.8
6.9

Peaks/Dips Graph  

See details on graph tool
See details on graph tool

Peaks 
 

2.09 dB
1.95 dB

Dips 
 

1.9 dB
1.69 dB

Imaging 
 

9.2
9.3

Group Delay  

See details on graph tool
See details on graph tool

Phase Response Mismatch  

See details on graph tool
See details on graph tool

Weighted Group Delay 
 

0.17
0.18

Weighted Phase Mismatch 
 

1.62
1.41

Weighted Amplitude Mismatch 
 

0.25
0.09

Weighted Frequency Mismatch 
 

1.4
1.08

Show text

Passive Soundstage 
 

1.6
1.3

PRTF  

KZ ZSN PRTF
KZ ZST PRTF

PRTF Accuracy (Std. Dev.) 
 

N/A
N/A

PRTF Size (Avg.) 
 

N/A
N/A

PRTF Distance 
 

N/A
N/A

Openness 
 

4.3
3.8

Acoustic Space Excitation 
 

2.5
1.9

Show text

Virtual Soundstage 
 

0.0
0.0

Virtual Soundstage  

KZ ZSN Virtual Soundstage
KZ ZST Virtual Soundstage

Head Modeling 
 

No
No

Speaker Modeling 
 

No
No

Room Ambience 
 

No
No

Head Tracking 
 

No
No

Virtual Surround 
 

No App
No App

Weighted Harmonic Distortion 
 

8.3
8.2

Weighted Harmonic Distortion  

See details on graph tool
See details on graph tool

WHD @ 90 
 

0.151
0.195

WHD @ 100 
 

0.083
0.083

Test Settings 
 

Firmware 
 

No Firmware
No Firmware

Power 
 

Passive
Passive

Connection 
 

Wired
Wired

Codec 
 

PCM, 24-bit, 48kHz
PCM, 24-bit, 48kHz

EQ 
 

No EQ
No EQ

ANC 
 

No ANC
No ANC

Tip/Pad 
 

Silicone (small)
Silicone (small)

Microphone 
 

No Microphone
No Microphone
Isolation

Noise Isolation 
 

5.6
5.6

Noise Isolation  

See details on graph tool
See details on graph tool

Isolation Audio 
 

Overall Attenuation 
 

-15.54 dB
-15.74 dB

Noise Cancelling  

No
No

Bass 
 

-2.25 dB
-2.38 dB

Mid 
 

-14.43 dB
-14.75 dB

Treble 
 

-31.07 dB
-31.24 dB

Show text

Leakage 
 

7.8
8.3

Leakage  

See details on graph tool
See details on graph tool

Leakage Audio 
 

Overall Leakage @ 1ft 
 

34.66 dB
31.59 dB

Show text

Microphone

Microphone Style 
 

Integrated 
 

No
No

In-Line 
 

No
No

Boom 
 

No
No

Detachable Boom 
 

No
No

Mic  

No
No

Recording Quality 
 

0.0
0.0

Microphone Frequency Response  

KZ ZSN Microphone Frequency Response
KZ ZST Microphone Frequency Response

Recorded Speech 
 

N/A
N/A

LFE 
 

N/A
N/A

FR Std. Dev. 
 

N/A
N/A

HFE 
 

N/A
N/A

Weighted THD 
 

N/A
N/A

Gain 
 

N/A
N/A

Show text

Noise Handling 
 

0.0
0.0

SpNR  

KZ ZSN SpNR
KZ ZST SpNR

SpNR 
 

N/A
N/A

Noise Gate 
 

No
No

Speech + Pink Noise Handling 
 

N/A
N/A

Speech + Pink Noise Audio Sample  

N/A
N/A

Speech + Subway Noise Handling 
 

N/A
N/A

Speech + Subway Noise Audio Sample  

N/A
N/A

Show text

Active Features

Battery 
 

0.0
0.0

Battery Type 
 

No Battery
No Battery

Continuous Battery Life 
 

N/A
N/A

Additional Charges 
 

N/A
N/A

Total Battery Life 
 

N/A
N/A

Charge Time 
 

N/A
N/A

Power-Saving Feature 
 

No
No

Audio While Charging 
 

No
No

Passive Playback 
 

Passive Headphone
Passive Headphone

Charging Port  

None
None

Show text

App Support 
 

0.0
0.0

App Picture  

KZ ZSN App Picture
KZ ZST App Picture

App Name  

No App
No App

iOS  

No
No

Android  

No
No

macOS  

No
No

Windows  

No
No

Equalizer 
 

No
No

ANC Control 
 

No
No

Mic Control  

No
No

Room Effects 
 

No
No

Playback Control 
 

No
No

Button Mapping  

No
No

Surround Support 
 

No
No

Show text

Connectivity

Bluetooth 
 

0.0
0.0

Bluetooth Version 
 

No Bluetooth
No Bluetooth

Multi-Device Pairing 
 

No
No

NFC Pairing 
 

No
No

Line Of Sight Range 
 

N/A
N/A

PC Latency (SBC) 
 

N/A
N/A

PC Latency (aptX) 
 

N/A
N/A

PC Latency (aptX HD) 
 

N/A
N/A

PC Latency (aptX-LL) 
 

N/A
N/A

iOS Latency 
 

N/A
N/A

Android Latency 
 

N/A
N/A

Show text

Non-Bluetooth Wireless 
 

0.0
0.0

Non-BT Line Of Sight Range 
 

N/A
N/A

Non-BT Latency 
 

N/A
N/A

Wired 
 

9.5
9.5

Cable Picture  

KZ ZSN Cable Picture
KZ ZST Cable Picture

Analog Audio 
 

Yes
Yes

USB Audio 
 

No
No

Detachable  

Yes
Yes

Length  

3.90 ft (1.19 m)
4.00 ft (1.22 m)

Connection 
 

1/8" TRS
1/8" TRS

Analog/USB Audio Latency 
 

0 ms
0 ms

Show text

PC Compatibility 
 

Analog 
 

Audio Only
Audio Only

Wired USB 
 

No
No

Non-BT Wireless 
 

No
No

PlayStation Compatibility 
 

PS4 Analog 
 

Audio Only
Audio Only

PS4 Wired USB 
 

No
No

PS4 Non-BT Wireless 
 

No
No

PS5 Analog 
 

Audio Only
Audio Only

PS5 Wired USB 
 

No
No

PS5 Non-BT Wireless 
 

No
No

Xbox Compatibility 
 

Xbox One Analog 
 

Audio Only
Audio Only

Xbox One Wired USB 
 

No
No

Xbox One Non-BT Wireless 
 

No
No

Xbox Series X|S Analog 
 

Audio Only
Audio Only

Xbox Series X|S Wired USB 
 

No
No

Xbox Series X|S Non-BT Wireless 
 

No
No

Base/Dock 
 

0.0
0.0

Type 
 

No Base/Dock
No Base/Dock

USB Input 
 

No
No

Line In 
 

No
No

Line Out 
 

No
No

Optical Input 
 

No
No

RCA Input 
 

No
No

Dock Charging 
 

No
No

Power Supply 
 

No Base/Dock
No Base/Dock

Show text

Check Price

Black, no mic
ZSN
Searching
Finding store
Black, no mic
ZST
Searching
Finding store
Cyan, no mic
ZSN
Searching
Finding store
Colorful, no mic
ZST
Searching
Finding store
 
Purple, no mic
ZSN
Searching
Finding store
 

KZ ZSN

KZ ZST

Comments

  1. Comparison

KZ ZSN vs KZ ZST: Main Discussion

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