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- Table of Contents
- Top
- Main Differences
- Sound
- Design
- Isolation
- Microphone
- Active Features
- Connectivity
- Comments
JBL Tune Flex True Wireless vs Anker Soundcore Liberty 4 NC Truly Wireless
Side-by-Side Comparison
Products
JBL Tune Flex True Wireless
Anker Soundcore Liberty 4 NC Truly Wireless
Tested using Methodology v1.5
Updated Jan 12, 2024 09:46 PM
SEE PRICE
Amazon.comTested using Methodology v2.0
Updated Apr 23, 2025 04:09 PM
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Amazon.com
TypeIn-ear
Noise CancellingYes
EnclosureClosed-Back
WirelessTruly Wireless
TransducerDynamic
MicYes
TypeIn-Ear
Noise CancellingYes
EnclosureClosed-Back
Bass AmountVery Emphasized (7 dB)
WirelessTruly Wireless
TransducerDynamic
Treble AmountBalanced (0 dB)
MicYes
Sound SignatureBoosted Bass
Variants
- Tune Flex (Black)
- Tune Flex (Blue)
- Tune Flex (Ghost Black)
- Tune Flex (Ghost White)
- Tune Flex (White)
- Soundcore Liberty 4 NC (Clear White)
- Soundcore Liberty 4 NC (Light Blue)
- Soundcore Liberty 4 NC (Navy Blue)
- Soundcore Liberty 4 NC (Pastel Pink)
- Soundcore Liberty 4 NC (Velvet Black)
Our Verdict
JBL Tune Flex True Wireless
Anker Soundcore Liberty 4 NC Truly Wireless
The Anker Soundcore Liberty 4 NC Truly Wireless are better than the JBL Tune Flex True Wireless. The Anker's ANC feature blocks out much more noise, and they support multi-device pairing. They also have a virtual surround sound feature to help create a more immersive listening experience.
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Black
Tune Flex
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Finding storeClear White
Soundcore Liberty 4 NC
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Finding storeBlue
Tune Flex
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Finding storeLight Blue
Soundcore Liberty 4 NC
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Finding storeGhost Black
Tune Flex
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Finding storeNavy Blue
Soundcore Liberty 4 NC
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Finding storeGhost White
Tune Flex
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Finding storePastel Pink
Soundcore Liberty 4 NC
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Finding storeWhite
Tune Flex
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Finding storeVelvet Black
Soundcore Liberty 4 NC
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Finding storeMain Differences forNeutral Sound
Neutral Sound
Threshold
Neutral Sound
7.5
Full Comparison
Sound
Sound Profile
Sound Profile
Normalization Frequency
1,000 Hz
Bass Amount
Very Emphasized (7 dB)
Bass Amount
0.88 dB
Treble Amount
-0.9 dB
Treble Amount
Balanced (0 dB)
Sound Signature
Boosted Bass
Frequency Response Consistency
8.8
9.2
Consistency L
Consistency R
Avg. Std. Deviation
0.25 dB
0.35 dB
Raw Frequency Response
Bass Profile: Target Compliance
8.5
6.8
Bass Profile: Target Compliance
RMS Deviation From Target
2.18 dB
7.0 dB
Low-Frequency Extension
10 Hz
20 Hz
Low Bass
2.89 dB
7.98 dB
Mid Bass
2.74 dB
7.75 dB
High Bass
1.01 dB
3.69 dB
Mid-Range Profile: Target Compliance
8.5
9.6
Mid-Range Profile: Target Compliance
RMS Deviation From Target
1.95 dB
0.76 dB
Low Mid
0.71 dB
0.73 dB
Mid-Mid
0.14 dB
-0.66 dB
High Mid
2.75 dB
0.04 dB
Treble Profile: Target Compliance
8.6
9.3
Treble Profile: Target Compliance
RMS Deviation From Target
2.14 dB
2.22 dB
Low Treble
0.51 dB
-1.44 dB
Mid Treble
0.65 dB
1.58 dB
High Treble
-4.23 dB
-3.94 dB
Peaks/Dips
8.5
7.4
Peaks/Dips Graph
Peaks
1.06 dB
1.53 dB
Dips
0.73 dB
1.91 dB
Stereo Mismatch
8.6
Frequency Response Mismatch
Phase Response Mismatch
Weighted Amplitude Mismatch
0.44
0.4 dB
Weighted Frequency Response Mismatch
2.11
0.4 dB
Weighted Phase Mismatch
4.09
0.5°
Cumulative Spectral Decay
CSD
PRTF
2.0
0.0
PRTF
PRTF Accuracy (RMS Deviation)
N/A
N/A
PRTF Size (Avg.)
N/A
N/A
PRTF Distance
N/A
N/A
Openness
5.2
Acoustic Space Excitation
3.2
Harmonic Distortion
8.7
Harmonics Levels
WHD @ 94 dB SPL
0.252
0.09%
WHD @ 104 dB SPL
0.091
0.40%
Electrical Aspects
Impedance
Sensitivity @1kHz-1V
N/A
Bluetooth Max SPL
103.8 dB
Virtual Soundstage
0.0
2.0
Virtual Soundstage
Head Modeling
No
No
Speaker Modeling
No
On/Off
Room Ambience
No
No
Head Tracking
No
No
Virtual Surround
No
3D Surround Sound
Test Settings
Firmware
v3.6.0
4.88
Power
On
On
Connection
Bluetooth 5.2
Bluetooth
Codec
SBC, 16-bit, 48kHz
SBC, 16-bit, 48kHz
Test Instrument
Audio Precision APx517B
EQ
Off
Soundcore Signature
ANC
Level 5
Adaptive ANC
Tip/Pad
Silicone (small)
Silicone (medium)
Microphone
Integrated
Integrated
Imaging
8.7
Group Delay
Phase Response Mismatch
Weighted Group Delay
0.2
Weighted Phase Mismatch
4.09
0.5°
Weighted Amplitude Mismatch
0.44
0.4 dB
Weighted Frequency Mismatch
2.11
0.4 dB
Weighted Harmonic Distortion
8.0
Weighted Harmonic Distortion
WHD @ 90
0.252
0.09%
WHD @ 100
0.091
0.40%
Design
Style
Design Picture 2
Type
In-ear
In-Ear
Enclosure
Closed-Back
Closed-Back
Wireless
Truly Wireless
Truly Wireless
Transducer
Dynamic
Dynamic
Comfort
7.5
7.5
Comfort Picture
Weight
0.02 lbs
0.02 lbs
Clamping Force
0 lbs
0 lbs
Controls
6.7
7.7
Controls Picture
OS Compatibility
Not OS specific
Not OS specific
Ease Of Use
Good
Good
Feedback
Good
Good
Call/Music Control
Yes
Yes
Volume Control
No
Yes
Microphone Control
Mute/Unmute
No
Channel Mixing
No
No
Noise Cancelling Control
On/Off
On/Off
Talk-Through
On/Off
On/Off
Additional Controls
Voice Assistant
Voice Assistant
Breathability
Breathability After Picture
Avg.Temp.Difference
Portability
9.7
9.4
Portability Picture
L
1.4" (3.5 cm)
1.7" (4.2 cm)
W
1.0" (2.5 cm)
1.1" (2.9 cm)
H
0.6" (1.5 cm)
0.8" (2.1 cm)
Volume
0.80 in³ (13.13 cm³)
1.56 in³ (25.58 cm³)
Transmitter Required
No
No
Case
7.5
8.0
Case Picture
Type
Hard case
Hard case
L
1.9" (4.7 cm)
2.3" (5.7 cm)
W
2.0" (5.2 cm)
2.3" (5.7 cm)
H
1.1" (2.8 cm)
1.2" (3.0 cm)
Volume
4.18 in³ (68.43 cm³)
5.95 in³ (97.47 cm³)
Build Quality
7.5
7.5
Build Quality Picture
Stability
7.5
7.5
Stability Picture
Headshots 1
Angled Picture
Side Picture
Headshots 2
Front Picture
Rear Picture
Top
Top Picture
In The Box
In The Box Picture
Isolation
Noise Isolation - Full Range
4.7
8.0
Noise Isolation - Full Range Graph
Noise Cancelling
Yes
Yes
Overall Attenuation
-10.64 dB
-20.94 dB
Isolation Audio
Bass
-3.37 dB
-16.38 dB
Mid
-11.52 dB
-23.13 dB
Treble
-17.87 dB
-24.06 dB
Noise Isolation - Common Scenarios
8.3
Noise Isolation - Common Scenarios Graph
Airplane Noise Attenuation
-19.31 dB
Airplane Noise Isolation Audio
Office Noise Attenuation
-19.15 dB
Office Noise Isolation Audio
Street Noise Attenuation
-20.72 dB
Street Noise Isolation Audio
Noise Isolation - Voice Handling
Female Voice 1
Male Voice 1
Female Voice 2
Male Voice 2
Leakage
7.2
8.2
Leakage Audio
Overall Leakage @ 1ft
38.13 dB
32.58 dB
Microphone
Microphone Style
Integrated
Yes
Yes
In-Line
No
No
Boom
No
No
Detachable Boom
No
No
Mic
Yes
Yes
Recording Quality
5.3
5.6
Microphone Frequency Response
Recorded Speech
LFE
515.36 Hz
108.34 Hz
FR Std. Dev.
7.54 dB
4 dB
HFE
4,243.66 Hz
3,466.89 Hz
Weighted THD
0.035
581.09
Gain
1.74 dB
25.32 dB
Noise Handling
7.5
6.9
SpNR
11.04 dB
10.55 dB
Noise Gate
Always On
Always On
Speech + Pink Noise Handling
7.5
7.5
Speech + Pink Noise Audio Sample
Speech + Subway Noise Handling
7.5
6.0
Speech + Subway Noise Audio Sample
Active Features
Battery
7.4
7.8
Battery Type
Rechargable
Rechargable
Continuous Battery Life
6.5 hrs
9 hrs
Additional Charges
4.0
4.0
Total Battery Life
32.5 hrs
45 hrs
Charge Time
0.75 hrs
1.3 hrs
Power-Saving Feature
Auto-Off Timer and Standby Mode
Auto-Off Timer and Standby Mode
Audio While Charging
Yes
Yes
Passive Playback
No
No
Charging Port
USB-C
USB-C
App Support
8.0
9.0
App Picture
App Name
JBL Headphones
Anker Soundcore
iOS
Yes
Yes
Android
Yes
Yes
macOS
No
No
Windows
No
No
Equalizer
Graphic + Presets
Graphic + Presets
ANC Control
Presets
Adjustable
Mic Control
No
No
Room Effects
No
No
Playback Control
No
No
Button Mapping
Yes
Yes
Surround Support
No
Yes
Connectivity
Wired Connection
0.0
0.0
Cable Picture
Analog Audio
No
No
USB Audio
No
No
Detachable
No
No
Length
N/A
N/A
Connector
No Wired Option
No Wired Option
Latency - Analog
N/A
Latency - USB
N/A
N/A
Recorded Latency
N/A
Recorded Latency Connection
No Wired Audio
Bluetooth Connection
6.9
7.8
Bluetooth Version
5.2
5.3
Multi-Device Pairing
No
2 Devices
NFC Pairing
No
Quick Pair (Android)
Yes
Quick Pair (iOS)
No
Line Of Sight Range
265.75 ft (81.00 m)
276.57 ft (84.30 m)
Latency - SBC
320 ms
348 ms
Latency - aptX
N/A
N/A
Latency - aptX Adaptive (High Quality)
N/A
Latency - aptX Adaptive (Low Latency)
N/A
Latency - LDAC
257 ms
Recorded Latency
Recorded Latency Codec
LDAC
AAC Support
Yes
PC Latency (aptX HD)
N/A
PC Latency (aptX-LL)
N/A
iOS Latency
203 ms
Android Latency
287 ms
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
PC Compatibility
Analog
No
No
Wired USB
No
No
Non-BT Wireless
No
No
PlayStation Compatibility
PS4 Analog
No
No
PS4 Wired USB
No
No
PS4 Non-BT Wireless
No
No
PS5 Analog
No
No
PS5 Wired USB
No
No
PS5 Non-BT Wireless
No
No
Xbox Compatibility
Xbox One Analog
No
No
Xbox One Wired USB
No
No
Xbox One Non-BT Wireless
No
No
Xbox Series X|S Analog
No
No
Xbox Series X|S Wired USB
No
No
Xbox Series X|S Non-BT Wireless
No
No
Base/Dock
2.2
2.2
Type
Charging Case
Charging Case
USB Input
No
No
Line In
No
No
Line Out
No
No
Optical Input
No
No
RCA Input
No
No
Dock Charging
Yes
Yes
Power Supply
USB-C
USB-C
Check Price
Black
Tune Flex
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Finding storeClear White
Soundcore Liberty 4 NC
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Finding storeBlue
Tune Flex
Searching
Finding storeLight Blue
Soundcore Liberty 4 NC
Searching
Finding storeGhost Black
Tune Flex
Searching
Finding storeNavy Blue
Soundcore Liberty 4 NC
Searching
Finding storeGhost White
Tune Flex
Searching
Finding storePastel Pink
Soundcore Liberty 4 NC
Searching
Finding storeWhite
Tune Flex
Searching
Finding storeVelvet Black
Soundcore Liberty 4 NC
Searching
Finding store
JBL Tune Flex True Wireless
Anker Soundcore Liberty 4 NC Truly Wireless
Comments
JBL Tune Flex True Wireless vs Anker Soundcore Liberty 4 NC Truly Wireless: Main Discussion
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