Products
Sennheiser HD 450BT Wireless
Sony WH-CH720N Wireless
Tested using Methodology v1.6
Updated Apr 23, 2024 08:03 PM
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Amazon.com
Tested using Methodology v2.0
Updated Dec 11, 2025 04:18 PM
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TypeOver-ear
Noise CancellingYes
EnclosureClosed-Back
WirelessYes
TransducerDynamic
MicYes
TypeOver-ear
Noise CancellingYes
EnclosureClosed-Back
Bass Amount
Very Emphasized (5 dB)
WirelessYes
TransducerDynamic
Treble Amount
Slightly Emphasized (1 dB)
MicYes
Sound Signature
Warm
Our Verdict
Sennheiser HD 450BT Wireless
Sony WH-CH720N Wireless
The Sony WH-CH720N Wireless came out after the Sennheiser HD 450BT Wireless and have better battery performance, more app features, and more refined controls. The Sony also have virtual surround sound and a comprehensive app with EQ. Their ANC is a bit more effective. The Sennheiser have small ear cups that limit some people's ability to get a good seal, and that also impacts their sound. Nevertheless, the Sennheiser can yield higher-quality aptX audio and low-latency audio with aptX-LL. Their app includes EQ, but it's simpler in design.
Variants
- HD 450BT (Black)
- HD 450BT (White)
- WH-CH720N (Black)
- WH-CH720N (Blue)
- WH-CH720N (White)
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Black
HD 450BT
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Black
WH-CH720N
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White
HD 450BT
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Amazon.com
White
WH-CH720N
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Amazon.com
Blue
WH-CH720N
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Main Differences for
Neutral Sound
Neutral Sound
Threshold
Neutral Sound
7.1
Full Comparison
Sound
Sound Profile
Sound Profile
Normalization Frequency
450 Hz
Bass Amount
Very Emphasized (5 dB)
Bass Amount
0.55 dB
Treble Amount
-4.41 dB
Treble Amount
Slightly Emphasized (1 dB)
Sound Signature
Warm
Frequency Response Consistency
6.3
6.7
Consistency L
Consistency R
Std. Deviation
0.83 dB
1.15 dB
Bass Profile: Target Compliance
8.0
7.4
Bass Profile: Target Compliance
RMS Deviation From Target
2.81 dB
5.6 dB
Low-Frequency Extension
16.34 Hz
20 Hz
Low Bass
1.98 dB
4.09 dB
Mid Bass
3.27 dB
5.79 dB
High Bass
3.23 dB
7.11 dB
Mid-Range Profile: Target Compliance
8.9
8.2
Mid-Range Profile: Target Compliance
RMS Deviation From Target
1.48 dB
2.39 dB
Low Mid
0.11 dB
2.49 dB
Mid-Mid
0.72 dB
0.61 dB
High Mid
1.99 dB
-2.1 dB
Treble Profile: Target Compliance
5.7
9.2
Treble Profile: Target Compliance
RMS Deviation From Target
6.19 dB
2.28 dB
Low Treble
-3.43 dB
-0.65 dB
Mid Treble
-4.12 dB
2.2 dB
High Treble
-11.11 dB
-14.54 dB
Peaks/Dips
7.0
5.3
Peaks/Dips Graph
Peaks
1.86 dB
2.32 dB
Dips
1.75 dB
5.84 dB
Stereo Mismatch
6.7
Frequency Response Mismatch
Phase Response Mismatch
Weighted Amplitude Mismatch
3.12
0.33 dB
Weighted Frequency Response Mismatch
3.32
1.44 dB
Weighted Phase Mismatch
4.18
6.6°
Cumulative Spectral Decay
CSD
PRTF
4.1
1.9
PRTF
PRTF Accuracy (RMS Deviation)
2.16 dB
4.6 dB
PRTF Size (Avg.)
2.65 dB
1.17 dB
PRTF Distance
6.91 dB
2.55 dB
Openness
3.4
Acoustic Space Excitation
1.9
Harmonic Distortion
8.7
Harmonics Levels
THD Ratio
WHD @ 94 dB SPL
0.453
0.13%
WHD @ 104 dB SPL
0.231
0.26%
Electrical Aspects
Impedance
Sensitivity @1kHz-1V
113.6 dB SPL
Bluetooth Max SPL
105.9 dB
Virtual Soundstage
0.0
4.1
Virtual Soundstage
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Head Modeling
No
On/Off
Speaker Modeling
No
On/Off
Room Ambience
No
No
Head Tracking
No
No
Virtual Surround
No
360 Reality Audio
Test Settings
Firmware
5.0.0
1.0.9
Power
On
On
Connection
Bluetooth 4.2
Bluetooth
Codec
aptX, 16-bit, 48kHz
SBC, 16-bit, 48kHz
Test Instrument
Audio Precision APx517B
EQ
Default
No EQ
ANC
On
On
Tip/Pad
Default
Default
Microphone
Integrated
Integrated
Imaging
6.9
Group Delay
Phase Response Mismatch
Weighted Group Delay
0.31
Weighted Phase Mismatch
4.18
6.6°
Weighted Amplitude Mismatch
3.12
0.33 dB
Weighted Frequency Mismatch
3.32
1.44 dB
Weighted Harmonic Distortion
7.1
Weighted Harmonic Distortion
WHD @ 90
0.453
0.13%
WHD @ 100
0.231
0.26%
Design
Style
Design Picture 2
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Type
Over-ear
Over-ear
Enclosure
Closed-Back
Closed-Back
Wireless
Yes
Yes
Transducer
Dynamic
Dynamic
Comfort
7.0
7.5
Comfort Picture
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Weight
0.53 lbs
0.41 lbs
Clamping Force
1 lbs
0.8 lbs
Controls
6.5
7.7
Controls Picture
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OS Compatibility
Not OS specific
Not OS specific
Ease Of Use
Mediocre
Good
Feedback
Mediocre
Good
Call/Music Control
Yes
Yes
Volume Control
Yes
Yes
Microphone Control
No
No
Channel Mixing
No
No
Noise Cancelling Control
On/Off
On/Off
Talk-Through
No
On/Off
Additional Controls
Voice Assistant
Voice Assistant
Breathability
Breathability After Picture
Avg.Temp.Difference
Portability
6.0
6.0
Portability Picture
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L
6.4" (16.3 cm)
7.9" (20.0 cm)
W
4.5" (11.4 cm)
7.5" (19.0 cm)
H
3.5" (8.9 cm)
2.0" (5.0 cm)
Volume
101.00 in³ (1,655.09 cm³)
103.81 in³ (1,701.10 cm³)
Transmitter Required
No
No
Case
6.5
0.0
Case Picture
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Type
Soft case
No case
L
7.1" (18.0 cm)
N/A
W
4.5" (11.4 cm)
N/A
H
3.3" (8.4 cm)
N/A
Volume
105.00 in³ (1,720.63 cm³)
N/A
Build Quality
7.0
7.0
Build Quality Picture
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Stability
7.5
7.0
Stability Picture
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Headshots 1
Angled Picture
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Side Picture
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Headshots 2
Front Picture
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Rear Picture
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Top
Top Picture
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In The Box
In The Box Picture
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Isolation
Noise Isolation - Full Range
6.6
7.2
Noise Isolation - Full Range Graph
Noise Cancelling
Yes
Yes
Overall Attenuation
-18.03 dB
-18.65 dB
Isolation Audio
Bass
-8.82 dB
-10.71 dB
Mid
-14.34 dB
-18.69 dB
Treble
-31.28 dB
-28.26 dB
Noise Isolation - Common Scenarios
4.9
Noise Isolation - Common Scenarios Graph
Airplane Noise Attenuation
-10.91 dB
Airplane Noise Isolation Audio
Office Noise Attenuation
-11.77 dB
Office Noise Isolation Audio
Street Noise Attenuation
-13.00 dB
Street Noise Isolation Audio
Noise Isolation - Voice Handling
Female Voice 1
Male Voice 1
Female Voice 2
Male Voice 2
Leakage
8.4
7.5
Leakage
Leakage Audio
Overall Leakage @ 1ft
31.31 dB
36.61 dB
Microphone
Microphone Style
Integrated
Yes
Yes
In-Line
No
No
Boom
No
No
Detachable Boom
No
No
Mic
Yes
Yes
Recording Quality
5.8
7.2
Microphone Frequency Response
Recorded Speech
LFE
397.39 Hz
85.99 Hz
FR Std. Dev.
3.41 dB
3.41 dB
HFE
3,319.91 Hz
6,933.79 Hz
Weighted THD
7.57
36.525
Gain
2.74 dB
3.1 dB
Noise Handling
6.2
6.5
SpNR
SpNR
10.32 dB
25.25 dB
Noise Gate
No
Always On
Speech + Pink Noise Handling
6.0
6.5
Speech + Pink Noise Audio Sample
Speech + Subway Noise Handling
6.5
6.5
Speech + Subway Noise Audio Sample
Active Features
Battery
7.6
8.5
Battery Type
Rechargable
Rechargable
Continuous Battery Life
28.6 hrs
38.4 hrs
Additional Charges
0.0
0.0
Total Battery Life
28.6 hrs
38.4 hrs
Charge Time
2.3 hrs
2.5 hrs
Power-Saving Feature
No
Standby mode
Audio While Charging
No
No
Passive Playback
Yes
Yes
Charging Port
USB-C
USB-C
App Support
7.0
8.0
App Picture
Compare High-Res
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App Name
Sennheiser Smart Control
Sony| Headphones Connect
iOS
Yes
Yes
Android
Yes
Yes
macOS
No
No
Windows
No
No
Equalizer
Graphic + Presets
Graphic + Presets
ANC Control
No
On/Off
Mic Control
No
No
Room Effects
No
No
Playback Control
No
Yes
Button Mapping
No
Yes
Surround Support
No
Yes
Connectivity
Wired Connection
9.9
6.7
Cable Picture
Compare High-Res
Compare High-Res
Analog Audio
Yes
Yes
USB Audio
No
No
Detachable
Yes
Yes
Length
4.90 ft (1.49 m)
4.13 ft (1.26 m)
Connector
1/16" TRRS
1/8" TRS
Latency - Analog
0.2 ms
34.4 ms
Latency - USB
N/A
N/A
Recorded Latency
Recorded Latency Connection
Analog
Analog
Bluetooth Connection
7.9
8.1
Bluetooth Version
5.010
5.2
Multi-Device Pairing
2 Devices
2 Devices
Quick Pair (Android)
No
No
Quick Pair (iOS)
No
No
Line Of Sight Range
282.00 ft (85.95 m)
334.65 ft (102.00 m)
Latency - SBC
268 ms
290 ms
Latency - aptX
264 ms
N/A
Latency - aptX Adaptive (High Quality)
N/A
N/A
Latency - aptX Adaptive (Low Latency)
N/A
N/A
Latency - LDAC
N/A
N/A
Recorded Latency
Recorded Latency Codec
aptX
SBC
AAC Support
Yes
Yes
Wireless Connection (Dongle)
0.0
0.0
Line Of Sight Range
N/A
N/A
Latency - Dongle
N/A
N/A
Recorded Latency
N/A
N/A
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
Check Price
Black
HD 450BT
SEE PRICE
Amazon.com
Black
WH-CH720N
SEE PRICE
BestBuy.com
White
HD 450BT
SEE PRICE
Amazon.com
White
WH-CH720N
SEE PRICE
Amazon.com
Blue
WH-CH720N
SEE PRICE
BestBuy.com
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Sennheiser HD 450BT Wireless
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Sennheiser HD 450BT Wireless vs Sony WH-CH720N Wireless: Main Discussion
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