Notice: Your browser is not supported or outdated so some features of the site might not be available.
- Table of Contents
- Top
- Main Differences
- Design
- Sound
- Isolation
- Microphone
- Active Features
- Connectivity
- Comments
Anker SoundBuds Curve Wireless vs Anker SoundCore Spirit X Wireless
Side-by-Side Comparison
Products
Anker SoundBuds Curve 2017
Anker SoundCore Spirit X Wireless
Tested using Methodology v1.4
Updated Sep 07, 2021 11:19 PM
SEE PRICE
Amazon.comTested using Methodology v1.4
Updated Dec 16, 2022 10:06 PM
SEE PRICE
Amazon.com
TypeIn-ear
EnclosureClosed-Back
Noise CancellingNo
WirelessYes
TransducerDynamic
MicYes
TypeIn-ear
EnclosureClosed-Back
Noise CancellingNo
WirelessYes
TransducerDynamic
MicYes
Variants
- Curve (Black)
- Curve (Blue)
- Curve (Green)
- Curve (Red)
- Soundcore Spirit X (Black)
Our Verdict
Anker SoundBuds Curve Wireless
Anker SoundCore Spirit X Wireless
The Anker SoundBuds Curve 2017 and the Anker SoundCore Spirit X Wireless are practically the same headphones, with very slight differences. The Spirit X are slightly better due to their higher sweat and water resistance, and their in-line remote offers better tactile feedback. You also get a cinch for easier cable management. If you have a Bluetooth 5.0 source, you might get better wireless range and connection stability with the Spirit X. On the other hand, the Curve have lower latency, support the aptX codec, and are even more affordable. These two headphones are great budget options, but if you don’t really care for the additional sweat resistance, the Curve will satisfy most users.
Check Price
Black
Curve
SEE PRICE
Amazon.comBlack
Soundcore Spirit X
SEE PRICE
Amazon.comBlue
Curve
SEE PRICE
Amazon.comBlack
Soundcore Spirit X
SEE PRICE
Walmart.comGreen
Curve
SEE PRICE
Amazon.comBlack
Soundcore Spirit X
SEARCH
B&HRed
Curve
SEE PRICE
Amazon.comBlack
Soundcore Spirit X
SEARCH
BestBuy.comBlack
Soundcore Spirit X
SEARCH
AnkerMain Differences forMixed Usage
Mixed Usage
Threshold
Mixed Usage
7.0
7.0
Full Comparison
Design
Style
Design Picture 2
Type
In-ear
In-ear
Enclosure
Closed-Back
Closed-Back
Wireless
Yes
Yes
Transducer
Dynamic
Dynamic
Comfort
7.5
7.5
Comfort Picture
Weight
0.05 lbs
0.05 lbs
Clamping Force
0 lbs
0 lbs
Controls
6.5
6.8
Controls Picture
OS Compatibility
Not OS specific
Not OS specific
Ease Of Use
Decent
Good
Feedback
Decent
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
Breathability
8.8
8.9
Breathability After Picture
Avg.Temp.Difference
1.2 °C
1.1 °C
Portability
8.7
8.5
Portability Picture
L
2.6"
2.1"
W
2.1"
3"
H
1"
1.2"
Volume
5.4 in³
7 in³
Transmitter Required
No
No
Case
7.5
7.5
Case Picture
Type
Hard case
Hard case
L
3.2"
3.2"
W
3.2"
3.2"
H
1.4"
1.4"
Volume
14 in³
14 in³
Build Quality
7.0
7.0
Build Quality Picture
Stability
8.0
8.0
Stability Picture
Headshots 1
Angled Picture
Side Picture
Headshots 2
Front Picture
Rear Picture
Top
Top Picture
In The Box
In The Box Picture
Sound
Sound Profile
Frequency Response
Bass Amount
5.16 dB
3.58 dB
Treble Amount
-2.72 dB
-1.99 dB
Frequency Response Consistency
9.2
9.4
Consistency L
Consistency R
Avg. Std. Deviation
0.16 dB
0.12 dB
Raw Frequency Response
Bass Accuracy
6.5
7.0
Std. Err.
4.94 dB
4.21 dB
Low-Frequency Extension
10 Hz
10 Hz
Low-Bass
6.7 dB
5.81 dB
Mid-Bass
5.26 dB
5.06 dB
High-Bass
4.03 dB
2.42 dB
Mid Accuracy
8.8
9.2
Std. Err.
1.61 dB
1.1 dB
Low-Mid
-0.04 dB
-0.28 dB
Mid-Mid
-1.6 dB
-0.61 dB
High-Mid
-1.86 dB
1.04 dB
Treble Accuracy
8.8
8.7
Std. Err.
1.56 dB
1.71 dB
Low-Treble
-1.23 dB
0.53 dB
Mid-Treble
-0.59 dB
0.72 dB
High-Treble
-10.65 dB
-10.86 dB
Peaks/Dips
7.9
8.1
Peaks/Dips Graph
Peaks
1.44 dB
1.31 dB
Dips
0.81 dB
0.78 dB
Imaging
8.8
8.3
Phase Response
Weighted Group Delay
0.2
0.17
Weighted Amplitude Mismatch
1.18
1.79
Weighted Frequency Mismatch
0.93
1.76
Weighted Phase Mismatch
1.35
2.55
Passive Soundstage
1.3
1.6
PRTF
PRTF Accuracy (Std. Dev.)
N/A
N/A
PRTF Size (Avg.)
N/A
N/A
PRTF Distance
N/A
N/A
Openness
3.9
4.4
Acoustic Space Excitation
1.8
2.3
Virtual Soundstage
0.0
0.0
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
8.0
7.0
Weighted Harmonic Distortion
WHD @ 90
0.238
0.457
WHD @ 100
0.093
0.303
Test Settings
Firmware
Unknown
Unknown
Power
On
On
Connection
Unknown
Unknown
Codec
aptX, 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
6.1
5.6
Noise Isolation
Isolation Audio
Overall Attenuation
-14.85 dB
-13.08 dB
Noise Cancelling
No
No
Bass
-2.69 dB
-1.79 dB
Mid
-16.48 dB
-14.3 dB
Treble
-26.82 dB
-24.43 dB
Leakage
8.4
8.0
Leakage Audio
Overall Leakage @ 1ft
31.14 dB
33.86 dB
Microphone
Microphone Style
Integrated
No
No
In-Line
Yes
Yes
Boom
No
No
Detachable Boom
No
No
Mic
Yes
Yes
Recording Quality
5.8
6.5
Microphone Frequency Response
Recorded Speech
LFE
369.71 Hz
285.09 Hz
FR Std. Dev.
3.44 dB
2.55 dB
HFE
2,523.3 Hz
3,133.58 Hz
Weighted THD
1.666
26.997
Gain
41.56 dB
45.25 dB
Noise Handling
6.1
6.2
Speech + Pink Noise
Speech + Subway Noise
SpNR
13.07 dB
14.77 dB
Active Features
Battery
6.4
6.2
Battery Type
Rechargable
Rechargable
Continuous Battery Life
12.7 hrs
11.9 hrs
Additional Charges
0.0
0.0
Total Battery Life
12.7 hrs
11.9 hrs
Charge Time
1.5 hrs
1.8 hrs
Power-Saving Feature
No
No
Audio While Charging
No
No
Passive Playback
No
No
Charging Port
micro-USB
micro-USB
App Support
0.0
0.0
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
Connectivity
Bluetooth
6.6
6.5
Bluetooth Version
4.1
5.0
Multi-Device Pairing
No
No
NFC Pairing
No
No
Line Of Sight Range
90 ft
88 ft
PC Latency (SBC)
163 ms
200 ms
PC Latency (aptX)
140 ms
N/A
PC Latency (aptX HD)
N/A
N/A
PC Latency (aptX-LL)
N/A
N/A
iOS Latency
156 ms
164 ms
Android Latency
78 ms
229 ms
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
0.0
0.0
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
PC / PS4 Compatibility
PC/PS4 Analog
No
No
PC/PS4 Wired USB
No
No
PC/PS4 Non-BT Wireless
No
No
Xbox One Compatibility
Xbox One Analog
No
No
Xbox One Wired USB
No
No
Xbox One 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
Curve
SEE PRICE
Amazon.comBlack
Soundcore Spirit X
SEE PRICE
Amazon.comBlue
Curve
SEE PRICE
Amazon.comBlack
Soundcore Spirit X
SEE PRICE
Walmart.comGreen
Curve
SEE PRICE
Amazon.comBlack
Soundcore Spirit X
SEARCH
B&HRed
Curve
SEE PRICE
Amazon.comBlack
Soundcore Spirit X
SEARCH
BestBuy.comBlack
Soundcore Spirit X
SEARCH
Anker
Anker SoundBuds Curve Wireless
Anker SoundCore Spirit X Wireless
Comments
Anker SoundBuds Curve 2017 vs Anker SoundCore Spirit X Wireless: 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.