Headphones
Products
In The Lab
Forums
Newsletters
 Insider
Notice: Your browser is not supported or outdated so some features of the site might not be available.
Best
Noise Cancelling Headphones Wireless Earbuds Apple Noise Cancelling Earbuds Gaming Over-Ear Wireless Wireless Gaming Running PC Gaming Xbox One PS5/PS5 Pro Wireless Earbuds For Running Beats Music Wired Over-Ears For Working Out In-Ears On-Ear
Tools
Compare Table Review List Review Index Graph Custom Ratings
Popular
Bose QuietComfort Ultra Headphones Wireless Audeze Maxwell Wireless Jabra Elite 8 Active Gen 2 Logitech G PRO X 2 LIGHTSPEED Wireless Sony WH-1000XM4 Wireless Sony WH-1000XM5 Wireless Sony WF-1000XM5 Truly Wireless Samsung Galaxy Buds3 Pro Astro A50 X SteelSeries Arctis Nova 7 Wireless [7, 7P, 7X] Sennheiser MOMENTUM 4 Wireless Apple AirPods Pro (2nd generation) Anker Soundcore Space Q45 Wireless Sennheiser HD 800 S Anker Soundcore Space A40 Truly Wireless SteelSeries Arctis Nova Pro Wireless [PC, PS, Xbox] Samsung Galaxy Buds FE Nothing Ear CMF Buds Pro 2 Sony WH-CH720N Wireless
831
Headphones bought and tested
Supported by you via insider access, and when you purchase through links on our site, we may earn an affiliate commission.
Driven by data, run by a passionate team of engineers, testers, technical writers, developers, and more.
We are hiring!
  1. Home
  2. Headphones
  3. Compare
  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 / PS4 Compatibility
    5. Xbox One Compatibility
    6. Base/Dock
  10. Comments

Anker SoundCore Spirit X Wireless vs Anker SoundBuds Curve Upgraded 2019

Side-by-Side Comparison

Products

Anker SoundCore Spirit X Wireless
Anker SoundBuds Curve 2019

Tested using Methodology v1.4

Updated Dec 16, 2022 10:06 PM

Searching
Finding store

Tested using Methodology v1.4

Updated Nov 04, 2022 01:48 PM

Searching
Finding store
Anker SoundCore Spirit X Wireless Picture
Anker SoundBuds Curve Upgraded 2019 Picture
TypeIn-ear
EnclosureClosed-Back
Noise CancellingNo
WirelessYes
TransducerDynamic
MicYes
TypeIn-ear
EnclosureClosed-Back
Noise CancellingNo
WirelessYes
TransducerDynamic
MicYes

Variants

  • Soundcore Spirit X (Black)
  • SoundBuds Curve Upgraded 2019

Review

See Anker SoundCore Spirit X Wireless Review
See Anker SoundBuds Curve Upgraded 2019 Review
0 
0 

Our Verdict

Anker SoundCore Spirit X Wireless

Anker SoundBuds Curve Upgraded 2019

The Anker SoundBuds Curve 2019 are marginally better headphones than the Anker SoundCore Spirit X Wireless. The SoundBuds look and feel almost identical and have very similar sound profiles, but the Curve have a much longer battery life, and their treble range is slightly more accurate.

0 

Check Price

Black
Soundcore Spirit X
Searching
Finding store
Standard
SoundBuds Curve Upgraded 2019
Searching
Finding store
Black
Soundcore Spirit X
Searching
Finding store
Standard
SoundBuds Curve Upgraded 2019
Searching
Finding store
Black
Soundcore Spirit X
Searching
Finding store
Standard
SoundBuds Curve Upgraded 2019
Searching
Finding store
Black
Soundcore Spirit X
Searching
Finding store
Standard
SoundBuds Curve Upgraded 2019
Searching
Finding store
Black
Soundcore Spirit X
Searching
Finding store
Standard
SoundBuds Curve Upgraded 2019
Searching
Finding store
Black
Soundcore Spirit X
Searching
Finding store
Standard
SoundBuds Curve Upgraded 2019
Searching
Finding store

Main Differences for
Mixed Usage

Threshold 

0.10

Mixed Usage 

7.0
7.2

Noise Isolation 
 

5.6
6.9

Full Comparison

Design

Style  

Design Picture 2  

Anker SoundCore Spirit X Wireless Design Picture 2
Anker SoundBuds Curve Upgraded 2019 Design Picture 2

Type  

In-ear
In-ear

Enclosure  

Closed-Back
Closed-Back

Wireless  

Yes
Yes

Transducer  

Dynamic
Dynamic
Show Text 

Comfort 
 

7.5
7.5

Comfort Picture  

Anker SoundCore Spirit X Wireless Comfort Picture
Anker SoundBuds Curve Upgraded 2019 Comfort Picture

Weight  

0.05 lbs
0.05 lbs

Clamping Force 
 

0 lbs
0 lbs
Show Text 

Controls 
 

6.8
6.8

Controls Picture  

Anker SoundCore Spirit X Wireless Controls Picture
Anker SoundBuds Curve Upgraded 2019 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  

Yes
Yes

Microphone Control  

No
No

Channel Mixing 
 

No
No

Noise Cancelling Control  

No
No

Talk-Through 
 

No
No

Additional Controls  

No
No
Show Text 

Breathability 
 

8.9
9.2

Breathability After Picture  

Anker SoundCore Spirit X Wireless Breathability After Picture
Anker SoundBuds Curve Upgraded 2019 Breathability After Picture

Avg.Temp.Difference  

1.1 °C
0.8 °C
Show Text 

Portability 
 

8.5
9.1

Portability Picture  

Anker SoundCore Spirit X Wireless Portability Picture
Anker SoundBuds Curve Upgraded 2019 Portability Picture

L  

2.1"
2.3"

W  

3"
1.6"

H  

1.2"
1"

Volume  

7 in³
3.7 in³

Transmitter Required  

No
No
Show Text 

Case 
 

7.5
7.5

Case Picture  

Anker SoundCore Spirit X Wireless Case Picture
Anker SoundBuds Curve Upgraded 2019 Case Picture

Type  

Hard case
Hard case

L  

3.2"
3.6"

W  

3.2"
3.6"

H  

1.4"
1"

Volume  

14 in³
20.7 in³
Show Text 

Build Quality 
 

7.0
7.0

Build Quality Picture  

Anker SoundCore Spirit X Wireless Build Quality Picture
Anker SoundBuds Curve Upgraded 2019 Build Quality Picture
Show Text 

Stability 
 

8.0
8.0

Stability Picture  

Anker SoundCore Spirit X Wireless Stability Picture
Anker SoundBuds Curve Upgraded 2019 Stability Picture
Show Text 

Headshots 1  

Angled Picture  

Anker SoundCore Spirit X Wireless Angled Picture
Anker SoundBuds Curve Upgraded 2019 Angled Picture

Side Picture  

Anker SoundCore Spirit X Wireless Side Picture
Anker SoundBuds Curve Upgraded 2019 Side Picture

Headshots 2  

Front Picture  

Anker SoundCore Spirit X Wireless Front Picture
Anker SoundBuds Curve Upgraded 2019 Front Picture

Rear Picture  

Anker SoundCore Spirit X Wireless Rear Picture
Anker SoundBuds Curve Upgraded 2019 Rear Picture

Top  

Top Picture  

Anker SoundCore Spirit X Wireless Top Picture
Anker SoundBuds Curve Upgraded 2019 Top Picture

In The Box  

In The Box Picture  

Anker SoundCore Spirit X Wireless In The Box Picture
Anker SoundBuds Curve Upgraded 2019 In The Box Picture
Show Text 
Sound

Sound Profile 
 

Frequency Response  

See details on graph tool
See details on graph tool

Bass Amount 
 

3.58 dB
4.64 dB

Treble Amount 
 

-1.99 dB
-1.28 dB
Show Text 

Frequency Response Consistency 
 

9.4
9.8

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 
 

0.12 dB
0.05 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 
 

7.0
6.8

Bass  

See details on graph tool
See details on graph tool

Std. Err. 
 

4.21 dB
4.57 dB

Low-Frequency Extension 
 

10 Hz
10 Hz

Low-Bass 
 

5.81 dB
5.72 dB

Mid-Bass 
 

5.06 dB
5.44 dB

High-Bass 
 

2.42 dB
3.44 dB
Show Text 

Mid Accuracy 
 

9.2
8.0

Mid  

See details on graph tool
See details on graph tool

Std. Err. 
 

1.1 dB
2.61 dB

Low-Mid 
 

-0.28 dB
-1.62 dB

Mid-Mid 
 

-0.61 dB
-3.79 dB

High-Mid 
 

1.04 dB
0 dB
Show Text 

Treble Accuracy 
 

8.7
8.3

Treble  

See details on graph tool
See details on graph tool

Std. Err. 
 

1.71 dB
2.24 dB

Low-Treble 
 

0.53 dB
0.21 dB

Mid-Treble 
 

0.72 dB
0.58 dB

High-Treble 
 

-10.86 dB
-9.14 dB
Show Text 

Peaks/Dips 
 

8.1
7.2

Peaks/Dips Graph  

See details on graph tool
See details on graph tool

Peaks 
 

1.31 dB
1.9 dB

Dips 
 

0.78 dB
1.22 dB
Show Text 

Imaging 
 

8.3
8.6

Group Delay  

See details on graph tool
See details on graph tool

Phase Response  

See details on graph tool
See details on graph tool

Weighted Group Delay 
 

0.17
0.21

Weighted Amplitude Mismatch 
 

1.79
0.4

Weighted Frequency Mismatch 
 

1.76
2.25

Weighted Phase Mismatch 
 

2.55
4.89
Show Text 

Passive Soundstage 
 

1.6
1.0

PRTF  

Anker SoundCore Spirit X Wireless PRTF
Anker SoundBuds Curve Upgraded 2019 PRTF

PRTF Accuracy (Std. Dev.) 
 

N/A
N/A

PRTF Size (Avg.) 
 

N/A
N/A

PRTF Distance 
 

N/A
N/A

Openness 
 

4.4
3.1

Acoustic Space Excitation 
 

2.3
1.2
Show Text 

Virtual Soundstage 
 

0.0
0.0

Virtual Soundstage  

Anker SoundCore Spirit X Wireless Virtual Soundstage
Anker SoundBuds Curve Upgraded 2019 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 
 

7.0
8.0

Weighted Harmonic Distortion  

See details on graph tool
See details on graph tool

WHD @ 90 
 

0.457
0.207

WHD @ 100 
 

0.303
0.106
Show Text 

Test Settings 
 

Firmware 
 

Unknown
Unknown

Power 
 

On
On

Connection 
 

Unknown
Bluetooth 4.2

Codec 
 

SBC, 16-bit, 48kHz
SBC, 16-bit, 48kHz

EQ 
 

No EQ
No EQ

ANC 
 

No ANC
No ANC

Tip/Pad 
 

Silicone (small)
Silicone (small)

Microphone 
 

In-line
In-line
Isolation

Noise Isolation 
 

5.6
6.9

Noise Isolation  

See details on graph tool
See details on graph tool

Isolation Audio 
 

Overall Attenuation 
 

-13.08 dB
-19.64 dB

Noise Cancelling  

No
No

Bass 
 

-1.79 dB
-5.06 dB

Mid 
 

-14.3 dB
-15.64 dB

Treble 
 

-24.43 dB
-39.05 dB
Show Text 

Leakage 
 

8.0
8.9

Leakage  

See details on graph tool
See details on graph tool

Leakage Audio 
 

Overall Leakage @ 1ft 
 

33.86 dB
27.58 dB
Show Text 
Microphone

Microphone Style 
 

Integrated 
 

No
No

In-Line 
 

Yes
Yes

Boom 
 

No
No

Detachable Boom 
 

No
No

Mic  

Yes
Yes

Recording Quality 
 

6.5
7.2

Microphone Frequency Response  

See details on graph tool
See details on graph tool

Recorded Speech 
 

LFE 
 

285.09 Hz
359.19 Hz

FR Std. Dev. 
 

2.55 dB
3 dB

HFE 
 

3,133.58 Hz
7,240.77 Hz

Weighted THD 
 

26.997
0.438

Gain 
 

45.25 dB
2.6 dB
Show Text 

Noise Handling 
 

6.2
6.0

SpNR  

See details on graph tool
See details on graph tool

Speech + Pink Noise  

Speech + Subway Noise  

SpNR 
 

14.77 dB
10.68 dB
Show Text 
Active Features

Battery 
 

6.2
6.9

Battery Type 
 

Rechargable
Rechargable

Continuous Battery Life 
 

11.9 hrs
18.4 hrs

Additional Charges 
 

0.0
0.0

Total Battery Life 
 

11.9 hrs
18.4 hrs

Charge Time 
 

1.8 hrs
1.3 hrs

Power-Saving Feature 
 

No
No

Audio While Charging 
 

No
No

Passive Playback 
 

No
No

Charging Port  

micro-USB
micro-USB
Show Text 

App Support 
 

0.0
0.0

App Picture  

Anker SoundCore Spirit X Wireless App Picture
Anker SoundBuds Curve Upgraded 2019 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 
 

6.5
6.5

Bluetooth Version 
 

5.0
5.0

Multi-Device Pairing 
 

No
No

NFC Pairing 
 

No
No

Line Of Sight Range 
 

88 ft
103 ft

PC Latency (SBC) 
 

200 ms
206 ms

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 
 

164 ms
184 ms

Android Latency 
 

229 ms
187 ms
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
Show Text 

Wired 
 

0.0
0.0

Cable Picture  

Anker SoundCore Spirit X Wireless Cable Picture
Anker SoundBuds Curve Upgraded 2019 Cable Picture

Analog Audio 
 

No
No

USB Audio 
 

No
No

Detachable  

No
No

Length  

N/A
N/A

Connection  

No Wired Option
No Wired Option

Analog/USB Audio Latency 
 

N/A
N/A
Show Text 

PC / PS4 Compatibility 
 

PC/PS4 Analog 
 

No
No

PC/PS4 Wired USB 
 

No
No

PC/PS4 Non-BT Wireless 
 

No
No
Show Text 

Xbox One Compatibility 
 

Xbox One Analog 
 

No
No

Xbox One Wired USB 
 

No
No

Xbox One Non-BT Wireless 
 

No
No
Show Text 

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
Soundcore Spirit X
Searching
Finding store
Standard
SoundBuds Curve Upgraded 2019
Searching
Finding store
Black
Soundcore Spirit X
Searching
Finding store
Standard
SoundBuds Curve Upgraded 2019
Searching
Finding store
Black
Soundcore Spirit X
Searching
Finding store
Standard
SoundBuds Curve Upgraded 2019
Searching
Finding store
Black
Soundcore Spirit X
Searching
Finding store
Standard
SoundBuds Curve Upgraded 2019
Searching
Finding store
Black
Soundcore Spirit X
Searching
Finding store
Standard
SoundBuds Curve Upgraded 2019
Searching
Finding store
Black
Soundcore Spirit X
Searching
Finding store
Standard
SoundBuds Curve Upgraded 2019
Searching
Finding store
Back to Top

Anker SoundCore Spirit X Wireless

Anker SoundBuds Curve Upgraded 2019

Comments

  1. Comparison
 • Posted 1 year ago

Anker SoundCore Spirit X Wireless vs Anker SoundBuds Curve 2019: 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.

Follow Discussion0 followingSee All Headphones Discussions
 Share
0 
PreviewBack to editorFormat guide
No comments yet, refresh to see new ones
We make money directly from you via insider access (which gives you access to extra features) and when you buy a product after clicking a link to a retailer. Learn more about how we work.
We buy our own products, just like you, mostly from the United States. When a product is discontinued or no longer popular, we sell the review units locally. You can see what products we currently have for sale here.
© 2025 9298-5266 Quebec Inc. All Rights Reserved.