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  1. Home
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Sennheiser HD 4.50 BTNC vs HD 4.40 BT Wireless

Which Headphones Are Better?

    Top
    Main Differences
    Design
      StyleComfortControlsBreathabilityPortabilityCaseBuild QualityStabilityHeadshots 1Headshots 2TopIn The Box
    Sound
      Sound ProfileFrequency Response ConsistencyRaw Frequency ResponseBass AccuracyMid AccuracyTreble AccuracyPeaks/DipsImagingPassive SoundstageVirtual SoundstageWeighted Harmonic DistortionTest Settings
    Isolation
      Noise IsolationLeakage
    Microphone
      Microphone StyleRecording QualityNoise Handling
    Active Features
      BatteryApp Support
    Connectivity
      BluetoothNon-Bluetooth WirelessWiredPC CompatibilityPC / PS4 CompatibilityPlayStation CompatibilityXbox CompatibilityBase/Dock
    Comments

Products

Sennheiser HD 4.50 BTNC
Sennheiser HD 4.40 BT Wireless

Tested using Methodology v1.4

Updated May 30, 2025 01:51 PM

SEE PRICE
Amazon.com

Tested using Methodology v1.5

Updated May 30, 2025 02:53 PM

SEE PRICE
Amazon.com
Sennheiser HD 4.50 BTNC Picture

Track

Sennheiser HD 4.40 BT Wireless Picture

Track

TypeOver-ear
EnclosureClosed-Back
WirelessYes
TransducerDynamic
Noise CancellingYes
MicYes
TypeOver-ear
EnclosureClosed-Back
WirelessYes
TransducerDynamic
Noise CancellingNo
MicYes

Our Verdict

Sennheiser HD 4.50 BTNC

Sennheiser HD 4.40 BT Wireless

The Sennheiser HD 4.50 are more versatile headphones than the Sennheiser HD 4.40 BT due to their ANC feature, which makes them suitable for commuting and at the office. Other than that, these two models are practically the same and perform quite similarly. The HD 4.40 are a bit less tight on some heads, which can be more comfortable for people with bigger heads.

0 

Variants

  • HD 4.50
  • HD 4.40

Review

See Sennheiser HD 4.50 BTNC Review
See Sennheiser HD 4.40 BT Wireless Review
0 
0 

Check Price

Standard
HD 4.50
SEE PRICE
Amazon.com
Standard
HD 4.40
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Amazon.com
Standard
HD 4.50
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HD 4.40
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Standard
HD 4.40
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Read more

Main Differences for
Mixed Usage

Threshold 

0.10

Mixed Usage 
 

0.0
N/A
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Full Comparison

Design

Style  

Design Picture 2  

Sennheiser HD 4.50 BTNC Design Picture 2 Sample

SAMPLE

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for pictures & test results

Sennheiser HD 4.40 BT Wireless Design Picture 2 Sample

SAMPLE

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for pictures & test results

Type  

Locked
Locked

Enclosure  

Locked
Locked

Wireless  

Locked
Locked

Transducer  

Locked
Locked
Show Text 

Comfort 
 

N/A
N/A

Comfort Picture  

Sennheiser HD 4.50 BTNC Comfort Picture Sample

SAMPLE

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for pictures & test results

Sennheiser HD 4.40 BT Wireless Comfort Picture Sample

SAMPLE

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for pictures & test results

Weight  

Lock lbs
Lock lbs

Clamping Force 
 

Lock lbs
Lock lbs
Show Text 

Controls 
 

N/A
N/A

Controls Picture  

Sennheiser HD 4.50 BTNC Controls Picture Sample

SAMPLE

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Sennheiser HD 4.40 BT Wireless Controls Picture Sample

SAMPLE

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for pictures & test results

OS Compatibility 
 

Locked
Locked

Ease Of Use  

Locked
Locked

Feedback  

Locked
Locked

Call/Music Control  

Locked
Locked

Volume Control  

Locked
Locked

Microphone Control  

Locked
Locked

Channel Mixing 
 

Locked
Locked

Noise Cancelling Control  

Locked
Locked

Talk-Through 
 

Locked
Locked

Additional Controls  

Locked
Locked
Show Text 

Breathability 
 

N/A
N/A

Breathability After Picture  

Sennheiser HD 4.50 BTNC Breathability After Picture Sample

SAMPLE

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Sennheiser HD 4.40 BT Wireless Breathability After Picture Sample

SAMPLE

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for pictures & test results

Avg.Temp.Difference  

Lock °C
Lock °C
Show Text 

Portability 
 

N/A
N/A

Portability Picture  

Sennheiser HD 4.50 BTNC Portability Picture Sample

SAMPLE

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for pictures & test results

Sennheiser HD 4.40 BT Wireless Portability Picture Sample

SAMPLE

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for pictures & test results

L  

Lock"
Lock" (Lock cm)

W  

Lock"
Lock" (Lock cm)

H  

Lock"
Lock" (Lock cm)

Volume  

Lock in³
Lock in³ (Lock cm³)

Transmitter Required  

Locked
Locked
Show Text 

Case 
 

N/A
N/A

Case Picture  

Sennheiser HD 4.50 BTNC Case Picture Sample

SAMPLE

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for pictures & test results

Sennheiser HD 4.40 BT Wireless Case Picture Sample

SAMPLE

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for pictures & test results

Type  

Locked
Locked

L  

Lock"
N/A

W  

Lock"
N/A

H  

Lock"
N/A

Volume  

Lock in³
N/A
Show Text 

Build Quality 
 

N/A
N/A

Build Quality Picture  

Sennheiser HD 4.50 BTNC Build Quality Picture Sample

SAMPLE

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Sennheiser HD 4.40 BT Wireless Build Quality Picture Sample

SAMPLE

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Show Text 

Stability 
 

N/A
N/A

Stability Picture  

Sennheiser HD 4.50 BTNC Stability Picture Sample

SAMPLE

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Sennheiser HD 4.40 BT Wireless Stability Picture Sample

SAMPLE

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Show Text 

Headshots 1  

Angled Picture  

Sennheiser HD 4.50 BTNC Angled Picture Sample

SAMPLE

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Sennheiser HD 4.40 BT Wireless Angled Picture Sample

SAMPLE

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for pictures & test results

Side Picture  

Sennheiser HD 4.50 BTNC Side Picture Sample

SAMPLE

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for pictures & test results

Sennheiser HD 4.40 BT Wireless Side Picture Sample

SAMPLE

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for pictures & test results

Headshots 2  

Front Picture  

Sennheiser HD 4.50 BTNC Front Picture Sample

SAMPLE

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for pictures & test results

Sennheiser HD 4.40 BT Wireless Front Picture Sample

SAMPLE

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for pictures & test results

Rear Picture  

Sennheiser HD 4.50 BTNC Rear Picture Sample

SAMPLE

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for pictures & test results

Sennheiser HD 4.40 BT Wireless Rear Picture Sample

SAMPLE

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for pictures & test results

Top  

Top Picture  

Sennheiser HD 4.50 BTNC Top Picture Sample

SAMPLE

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for pictures & test results

Sennheiser HD 4.40 BT Wireless Top Picture Sample

SAMPLE

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for pictures & test results

In The Box  

In The Box Picture  

Sennheiser HD 4.50 BTNC In The Box Picture Sample

SAMPLE

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for pictures & test results

Sennheiser HD 4.40 BT Wireless In The Box Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

Show Text 
Sound

Sound Profile 
 

Frequency Response  

Sennheiser HD 4.50 BTNC Frequency Response Sample

SAMPLE

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for pictures & test results

Sennheiser HD 4.40 BT Wireless Frequency Response Sample

SAMPLE

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for pictures & test results

Bass Amount 
 

Lock dB
Lock dB

Treble Amount 
 

Lock dB
Lock dB
Show Text 

Frequency Response Consistency 
 

N/A
N/A

Consistency L  

Sennheiser HD 4.50 BTNC Consistency L Sample

SAMPLE

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Sennheiser HD 4.40 BT Wireless Consistency L Sample

SAMPLE

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for pictures & test results

Consistency R  

Sennheiser HD 4.50 BTNC Consistency R Sample

SAMPLE

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Sennheiser HD 4.40 BT Wireless Consistency R Sample

SAMPLE

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for pictures & test results

Avg. Std. Deviation 
 

Lock dB
Lock dB
Show Text 

Raw Frequency Response 
 

Raw FR L  

Sennheiser HD 4.50 BTNC Raw FR L Sample

SAMPLE

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for pictures & test results

Sennheiser HD 4.40 BT Wireless Raw FR L Sample

SAMPLE

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for pictures & test results

Raw FR R  

Sennheiser HD 4.50 BTNC Raw FR R Sample

SAMPLE

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for pictures & test results

Sennheiser HD 4.40 BT Wireless Raw FR R Sample

SAMPLE

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for pictures & test results

Bass Accuracy 
 

N/A
N/A

Bass  

Sennheiser HD 4.50 BTNC Bass Sample

SAMPLE

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for pictures & test results

Sennheiser HD 4.40 BT Wireless Bass Sample

SAMPLE

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for pictures & test results

Std. Err. 
 

Lock dB
Lock dB

Low-Frequency Extension 
 

Lock Hz
Lock Hz

Low-Bass 
 

Lock dB
Lock dB

Mid-Bass 
 

Lock dB
Lock dB

High-Bass 
 

Lock dB
Lock dB
Show Text 

Mid Accuracy 
 

N/A
N/A

Mid  

Sennheiser HD 4.50 BTNC Mid Sample

SAMPLE

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for pictures & test results

Sennheiser HD 4.40 BT Wireless Mid Sample

SAMPLE

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for pictures & test results

Std. Err. 
 

Lock dB
Lock dB

Low-Mid 
 

Lock dB
Lock dB

Mid-Mid 
 

Lock dB
Lock dB

High-Mid 
 

Lock dB
Lock dB
Show Text 

Treble Accuracy 
 

N/A
N/A

Treble  

Sennheiser HD 4.50 BTNC Treble Sample

SAMPLE

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for pictures & test results

Sennheiser HD 4.40 BT Wireless Treble Sample

SAMPLE

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for pictures & test results

Std. Err. 
 

Lock dB
Lock dB

Low-Treble 
 

Lock dB
Lock dB

Mid-Treble 
 

Lock dB
Lock dB

High-Treble 
 

Lock dB
Lock dB
Show Text 

Peaks/Dips 
 

N/A
N/A

Peaks/Dips Graph  

Sennheiser HD 4.50 BTNC Peaks/Dips Graph Sample

SAMPLE

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for pictures & test results

Sennheiser HD 4.40 BT Wireless Peaks/Dips Graph Sample

SAMPLE

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for pictures & test results

Peaks 
 

Lock dB
Lock dB

Dips 
 

Lock dB
Lock dB
Show Text 

Imaging 
 

N/A
N/A

Group Delay  

Sennheiser HD 4.50 BTNC Group Delay Sample

SAMPLE

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Sennheiser HD 4.40 BT Wireless Group Delay Sample

SAMPLE

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for pictures & test results

Phase Response  

Sennheiser HD 4.50 BTNC Phase Response Sample

SAMPLE

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Sennheiser HD 4.40 BT Wireless Phase Response Sample

SAMPLE

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Phase Response Mismatch  

Sennheiser HD 4.50 BTNC Phase Response Mismatch Sample

SAMPLE

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Sennheiser HD 4.40 BT Wireless Phase Response Mismatch Sample

SAMPLE

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for pictures & test results

Weighted Group Delay 
 

Lock
Lock

Weighted Phase Mismatch 
 

Lock
Lock

Weighted Amplitude Mismatch 
 

Lock
Lock

Weighted Frequency Mismatch 
 

Lock
Lock
Show Text 

Passive Soundstage 
 

N/A
N/A

PRTF  

Sennheiser HD 4.50 BTNC PRTF Sample

SAMPLE

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Sennheiser HD 4.40 BT Wireless PRTF Sample

SAMPLE

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PRTF Accuracy (Std. Dev.) 
 

Lock dB
Lock dB

PRTF Size (Avg.) 
 

Lock dB
Lock dB

PRTF Distance 
 

Lock dB
Lock dB

Openness 
 

0.0
0.0

Acoustic Space Excitation 
 

0.0
0.0
Show Text 

Virtual Soundstage 
 

N/A
N/A

Virtual Soundstage  

Sennheiser HD 4.50 BTNC Virtual Soundstage Sample

SAMPLE

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for pictures & test results

Sennheiser HD 4.40 BT Wireless Virtual Soundstage Sample

SAMPLE

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for pictures & test results

Head Modeling 
 

Locked
Locked

Speaker Modeling 
 

Locked
Locked

Room Ambience 
 

Locked
Locked

Head Tracking 
 

Locked
Locked

Virtual Surround 
 

Locked
Locked
Show Text 

Weighted Harmonic Distortion 
 

N/A
N/A

Weighted Harmonic Distortion  

Sennheiser HD 4.50 BTNC Weighted Harmonic Distortion Sample

SAMPLE

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Sennheiser HD 4.40 BT Wireless Weighted Harmonic Distortion Sample

SAMPLE

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for pictures & test results

WHD @ 90 
 

Lock
Lock

WHD @ 100 
 

Lock
Lock
Show Text 

Test Settings 
 

Firmware 
 

Locked
Locked

Power 
 

Locked
Locked

Connection 
 

Locked
Locked

Codec 
 

Locked
Locked

EQ 
 

Locked
Locked

ANC 
 

Locked
Locked

Tip/Pad 
 

Locked
Locked

Microphone 
 

Locked
Locked
Show Text 
Isolation

Noise Isolation 
 

N/A
N/A

Noise Isolation  

Sennheiser HD 4.50 BTNC Noise Isolation Sample

SAMPLE

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Sennheiser HD 4.40 BT Wireless Noise Isolation Sample

SAMPLE

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Isolation Audio 
 

JOIN NOW
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Overall Attenuation 
 

Lock dB
Lock dB

Noise Cancelling  

Locked
Locked

Bass 
 

Lock dB
Lock dB

Mid 
 

Lock dB
Lock dB

Treble 
 

Lock dB
Lock dB
Show Text 

Leakage 
 

N/A
N/A

Leakage  

Sennheiser HD 4.50 BTNC Leakage Sample

SAMPLE

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Sennheiser HD 4.40 BT Wireless Leakage Sample

SAMPLE

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Leakage Audio 
 

JOIN NOW
JOIN NOW

Overall Leakage @ 1ft 
 

Lock dB
Lock dB
Show Text 
Microphone

Microphone Style 
 

Integrated 
 

Locked
Locked

In-Line 
 

Locked
Locked

Boom 
 

Locked
Locked

Detachable Boom 
 

Locked
Locked

Mic  

Locked
Locked
Show Text 

Recording Quality 
 

N/A
N/A

Microphone Frequency Response  

Sennheiser HD 4.50 BTNC Microphone Frequency Response Sample

SAMPLE

JOIN NOW

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Sennheiser HD 4.40 BT Wireless Microphone Frequency Response Sample

SAMPLE

JOIN NOW

for pictures & test results

Recorded Speech 
 

JOIN NOW
JOIN NOW

LFE 
 

Lock Hz
Lock Hz

FR Std. Dev. 
 

Lock dB
Lock dB

HFE 
 

Lock Hz
Lock Hz

Weighted THD 
 

Lock
Lock

Gain 
 

Lock dB
Lock dB
Show Text 

Noise Handling 
 

N/A
N/A

SpNR  

Sennheiser HD 4.50 BTNC SpNR Sample

SAMPLE

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Sennheiser HD 4.40 BT Wireless SpNR Sample

SAMPLE

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for pictures & test results

SpNR 
 

Lock dB
Lock dB

Noise Gate 
 

Locked

Speech + Pink Noise Handling 
 

0.0

Speech + Pink Noise Audio Sample  

JOIN NOW
JOIN NOW

Speech + Subway Noise Handling 
 

0.0

Speech + Subway Noise Audio Sample  

JOIN NOW
JOIN NOW
Show Text 
Active Features

Battery 
 

N/A
N/A

Battery Type 
 

Locked
Locked

Continuous Battery Life 
 

Lock hrs
Lock hrs

Additional Charges 
 

Lock
Lock

Total Battery Life 
 

Lock hrs
Lock hrs

Charge Time 
 

Lock hrs
Lock hrs

Power-Saving Feature 
 

Locked
Locked

Audio While Charging 
 

Locked
Locked

Passive Playback 
 

Locked
Locked

Charging Port  

Locked
Locked
Show Text 

App Support 
 

N/A
N/A

App Picture  

Sennheiser HD 4.50 BTNC App Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

Sennheiser HD 4.40 BT Wireless App Picture Sample

SAMPLE

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for pictures & test results

App Name  

Locked
Locked

iOS  

Locked
Locked

Android  

Locked
Locked

macOS  

Locked
Locked

Windows  

Locked
Locked

Equalizer 
 

Locked
Locked

ANC Control 
 

Locked
Locked

Mic Control  

Locked
Locked

Room Effects 
 

Locked
Locked

Playback Control 
 

Locked
Locked

Button Mapping  

Locked
Locked

Surround Support 
 

Locked
Locked
Show Text 
Connectivity

Bluetooth 
 

N/A
N/A

Bluetooth Version 
 

Locked
Locked

Multi-Device Pairing 
 

Locked
Locked

NFC Pairing 
 

Locked
Locked

Line Of Sight Range 
 

Lock ft
Lock ft (Lock m)

PC Latency (SBC) 
 

Lock ms
Lock ms

PC Latency (aptX) 
 

Lock ms
Lock ms

PC Latency (aptX HD) 
 

N/A
N/A

PC Latency (aptX-LL) 
 

N/A
N/A

iOS Latency 
 

Lock ms
Lock ms

Android Latency 
 

Lock ms
Lock ms
Show Text 

Non-Bluetooth Wireless 
 

N/A
N/A

Non-BT Line Of Sight Range 
 

N/A
N/A

Non-BT Latency 
 

N/A
N/A
Show Text 

Wired 
 

N/A
N/A

Cable Picture  

Sennheiser HD 4.50 BTNC Cable Picture Sample

SAMPLE

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Sennheiser HD 4.40 BT Wireless Cable Picture Sample

SAMPLE

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for pictures & test results

Analog Audio 
 

Locked
Locked

USB Audio 
 

Locked
Locked

Detachable  

Locked
Locked

Length  

Lock ft
Lock ft (Lock m)

Connection 
 

Locked
Locked

Analog/USB Audio Latency 
 

Lock ms
Lock ms
Show Text 

PC Compatibility 
 

Analog 
 

Locked

Wired USB 
 

Locked

Non-BT Wireless 
 

Locked

PC / PS4 Compatibility 
 

PC/PS4 Analog 
 

Locked
Locked

PC/PS4 Wired USB 
 

Locked
Locked

PC/PS4 Non-BT Wireless 
 

Locked
Locked
Show Text 

PlayStation Compatibility 
 

PS4 Analog 
 

Locked
Locked

PS4 Wired USB 
 

Locked
Locked

PS4 Non-BT Wireless 
 

Locked
Locked

PS5 Analog 
 

Locked

PS5 Wired USB 
 

Locked

PS5 Non-BT Wireless 
 

Locked

Xbox Compatibility 
 

Xbox One Analog 
 

Locked
Locked

Xbox One Wired USB 
 

Locked
Locked

Xbox One Non-BT Wireless 
 

Locked
Locked

Xbox Series X|S Analog 
 

Locked

Xbox Series X|S Wired USB 
 

Locked

Xbox Series X|S Non-BT Wireless 
 

Locked
Show Text 

Base/Dock 
 

N/A
N/A

Type 
 

Locked
Locked

USB Input 
 

Locked
Locked

Line In 
 

Locked
Locked

Line Out 
 

Locked
Locked

Optical Input 
 

Locked
Locked

RCA Input 
 

Locked
Locked

Dock Charging 
 

Locked
Locked

Power Supply 
 

Locked
Locked
Show Text 

Check Price

Standard
HD 4.50
SEE PRICE
Amazon.com
Standard
HD 4.40
SEE PRICE
Amazon.com
Standard
HD 4.50
SEE PRICE
Walmart.com
Standard
HD 4.40
SEE PRICE
BestBuy.com
Standard
HD 4.50
SEARCH
B&H
Standard
HD 4.40
SEE PRICE
Walmart.com
Standard
HD 4.50
SEARCH
BestBuy.com
Standard
HD 4.40
SEARCH
B&H
Standard
HD 4.50
SEARCH
Sennheiser
Standard
HD 4.40
SEARCH
Sennheiser
Back to Top

Sennheiser HD 4.50 BTNC

Sennheiser HD 4.40 BT Wireless

Comments

  1. Comparison
 • Posted 2 years ago

Sennheiser HD 4.50 BTNC vs Sennheiser HD 4.40 BT Wireless: Main Discussion

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