OVERALL
ALTERNATIVES
SPECS
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REVIEWS
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Sudio K2 Review | 93 Data compared

Avg. price:~£70Form factor:over-earConnectivity:wirelessBattery life:60 hoursActive noise cancellation (ANC):yes

Sudio K2 Review: Compare 93 technical specifications and user reviews to see how this product ranks in the Headphones category and whether it is worth buying.

7.5

Overall score

Score
7.5/ 10
✕
What it is
An overall evaluation of the headphones' quality, based on technical analyses and user reviews.
When it matters
When you need a quick reference to identify the best headphones on the market.
Score distribution
▼
<55-66-77-88-99-10
▲ Better than 83% of models
Score components

80%

7.4

Technical score

20%

7.9

User score

▲Better than 83% of headphones
7.4

Technical score

Technical score
7.4/ 10
✕
What it is
An assessment of technical performance for products in the Headphones category across these key areas: Sound, Calls & Controls, Connectivity, Features, Battery, Design.
When it matters
When you want to compare headphones based on technical performance and available features.
Score distribution
▼
<55-66-77-88-99-10
▲ Better than 82% of models
Score components

52%

8.4

Sound

20%

5.0

Features

10%

7.3

Design

8%

6.1

Connectivity

6%

7.6

Battery

4%

8.7

Calls & Controls

▲Better than 82% of headphones
7.9

User score

User score
7.9/ 10
✕
What it is
A rating that combines user reviews and the total number of reviews received by the headphones.
When it matters
When you want to understand how headphones perform in real listening and how reliable they are in terms of comfort, audio quality, battery life, and long-term use.
Score distribution
▼
<55-66-77-88-99-10
▼ Worse than 61% of models
Score components

70%

8.8

User ratings

30%

5.8

Number of reviews

Based on 220 buyer reviews from online shops.
Read buyer reviews on Amazon →
How we calculate this
User ratings – average star rating across all shop listings, weighted by how many reviews each has, on a 1–10 scale.
Number of reviews – how many buyer reviews the product has, on a logarithmic scale; the 8% most-reviewed models in the category get 10.
▼Worse than 61% of headphones
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Best prices

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Best rankings

Available: ranking among products currently available (including other versions of this product).All: ranking among all products in the database.
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Technical Specifications of pair of headphones Sudio K2

Technical score
Technical score
7.4/ 10
✕
What it is
An assessment of technical performance for products in the Headphones category across these key areas: Sound, Calls & Controls, Connectivity, Features, Battery, Design.
When it matters
When you want to compare headphones based on technical performance and available features.
Score distribution
▼
<55-66-77-88-99-10
▲ Better than 82% of models
Score components:

52%

8.4

Sound

20%

5.0

Features

10%

7.3

Design

8%

6.1

Connectivity

6%

7.6

Battery

4%

8.7

Calls & Controls

7.4
User score
User score
7.9/ 10
✕
What it is
A rating that combines user reviews and the total number of reviews received by the headphones.
When it matters
When you want to understand how headphones perform in real listening and how reliable they are in terms of comfort, audio quality, battery life, and long-term use.
Score distribution
▼
<55-66-77-88-99-10
▼ Worse than 61% of models
Score components

70%

8.8

User ratings

30%

5.8

Number of reviews

Based on 220 buyer reviews from online shops.
Read buyer reviews on Amazon →
How we calculate this
User ratings – average star rating across all shop listings, weighted by how many reviews each has, on a 1–10 scale.
Number of reviews – how many buyer reviews the product has, on a logarithmic scale; the 8% most-reviewed models in the category get 10.
7.9
Popularity
Popularity
5.8/ 10
✕
What it is
An indicator based on the number of reviews received by the headphones.
When it matters
When you prefer headphones that have already been chosen and reviewed by many other users.
Score distribution
▼
<55-66-77-88-99-10
▼ Worse than 51% of models
Popularity:
Sudio K2 has a popularity score of 5.8 points, which is lower than that of 50.2% of products in this category.
5.8
Value for money
Value for money
8.2/ 10
✕
What it is
An indicator that combines the headphones' overall rating with their cost.
When it matters
When you are looking for headphones that offer a strong balance of performance, features, and price.
Score distribution
▼
<55-66-77-88-99-10
▲ Better than 84% of models
Score components:

60%

7.5

Overall score

40%

10

Price

8.2
Active noise cancellation (ANC)
yes
Active noise cancellation (ANC)
yes
▲ Better than 73% of models
This pair of headphones supports active noise cancellation. 72.6% of headphones support active noise cancellation.
Driver type
dynamic
Driver size
40 mm
Driver size
40 mm
▲ Better than 29% of models
Market range: <10 mm – >50 mm
This pair of headphones uses a driver size of 40 mm, larger driver size than 28.6% of headphones and equal to 53.3% of headphones.
Number of drivers
1
Number of drivers
1
▼ Worse than 4% of models
Market range: <1 – >4
This pair of headphones uses 1 drivers, fewer drivers than 4% of headphones and equal to 96% of headphones.
Lowest frequency
20 Hz
Lowest frequency
20 Hz
▼ Worse than 51% of models
Market range: <5 Hz – >20 Hz
This pair of headphones reaches a lowest frequency of 20 Hz, higher lowest frequency than 50.8% of headphones and equal to 47.3% of headphones.
Show more
Noise-canceling microphone
yes
Noise-canceling microphone
yes
▲ Better than 61% of models
This pair of headphones supports a noise-canceling microphone. 61.1% of headphones support noise-canceling microphones.
Can be used as a headset
yes
Can be used as a headset
yes
▲ Better than 15% of models
This pair of headphones is headset-ready, 84.8% is not. 15.2% of headphones can be used as headsets.
Number of microphones
5
Number of microphones
5
★ Better than 93% of models
Market range: <0 – >4
This pair of headphones has 5 microphones, more microphones than 93.2% of headphones and equal to 2.8% of headphones.
Boom microphone
no
Boom microphone
no
▼ Worse than 14% of models
This pair of headphones does not include a boom microphone. 13.5% of headphones have a boom microphone.
Microphone SNR
?
Show more
Connectivity
wireless
Connectivity
wireless
▲ Better than 51% of models
This pair of headphones supports wireless connectivity, more flexible connectivity than 50.8% of headphones and equal to 49.2% of headphones.
Bluetooth version
5.3
Bluetooth version
5.3
▲ Better than 89% of models
This pair of headphones uses Bluetooth version 5.3, newer Bluetooth version than 88.7% of headphones and equal to 6.5% of headphones.
Maximum Bluetooth range
10 m
Maximum Bluetooth range
10 m
▼ Worse than 17% of models
Market range: <10 m – >15 m
This pair of headphones offers a Bluetooth range of 10 m, higher Bluetooth range than 2.7% of headphones and equal to 80.6% of headphones.
Audio latency
40 ms
Audio latency
40 ms
▲ Better than 77% of models
Market range: <40 ms – >222 ms
This pair of headphones has audio latency of 40 ms, lower audio latency than 77.2% of headphones and equal to 14.6% of headphones.
Multipoint support
no
Multipoint support
no
▼ Worse than 31% of models
This pair of headphones does not support multipoint. 30.6% of headphones support multipoint.
Show more
Ambient sound mode
yes
Ambient sound mode
yes
▲ Better than 75% of models
This pair of headphones supports ambient sound mode. 75.2% of headphones support ambient sound mode.
EQ support
no
EQ support
no
▼ Worse than 23% of models
This pair of headphones does not support EQ customization. 23.2% of headphones support EQ.
Companion app
no
Companion app
no
▼ Worse than 22% of models
This pair of headphones does not work with a companion app. 21.6% of headphones support companion apps.
Adjustable ANC levels
N/A
Voice assistant support
no
Voice assistant support
no
▼ Worse than 61% of models
This pair of headphones does not support voice assistants. 60.9% of headphones support voice assistants.
Show more
Battery life
60 hours
Battery life
60 hours
▲ Better than 79% of models
Market range: <10 hours – >70 hours
This pair of headphones offers battery life of 60 hours, higher battery life than 79.1% of headphones and equal to 6.1% of headphones.
Battery life with ANC
27 hours
Battery life with ANC
27 hours
▼ Worse than 60% of models
Market range: <15 hours – >55 hours
This pair of headphones offers battery life with ANC of 27 hours, lower battery life with ANC than 59.6% of headphones and equal to 0.6% of headphones.
Charging time
1.5 hours
Charging time
1.5 hours
▲ Better than 87% of models
Market range: <1.5 hours – >3.5 hours
This pair of headphones needs 1.5 hours to charge, lower charging time than 87.2% of headphones and equal to 7.6% of headphones.
Quick charge
no
Quick charge
no
▼ Worse than 33% of models
This pair of headphones does not support quick charging. 33.1% of headphones support quick charge.
Battery capacity
500 mAh
Battery capacity
500 mAh
▼ Worse than 55% of models
Market range: <290 mAh – >1k mAh
This pair of headphones has a battery capacity of 500 mAh, lower battery capacity than 55.3% of headphones and equal to 9.4% of headphones.
Show more
Brand name
Sudio
Form factor
over-ear
Weight
245 g
Weight
245 g
▼ Worse than 60% of models
Market range: <14 g – >340 g
This pair of headphones weighs 245 g, heavier than 59.8% of headphones and equal to 0.9% of headphones.
Acoustic design
closed-back
Clamp force
?
Show more

Sudio K2 vs the average pair of headphones

246810TotalDesignSoundBatteryConnectivityCalls & ControlsFeatures
  • Active noise cancellation
    Active noise cancellation (ANC)
    yes
    ▲ Better than 73% of models
    This pair of headphones supports active noise cancellation, the average pair of headphones does not. 27.5% of headphones support active noise cancellation.
  • Ambient sound mode
    Ambient sound mode
    yes
    ▲ Better than 75% of models
    This pair of headphones supports ambient sound mode, the average pair of headphones does not. 24.9% of headphones support ambient sound mode.
  • 12 dB/mW higher sensitivity
    Sensitivity
    114 dB/mW
    ▲ Better than 88% of models
    Market range: <94 dB/mW – >115 dB/mW
    This pair of headphones has a higher sensitivity than the average pair of headphones (114 dB/mW vs 102 dB/mW). The average headphones have sensitivity of 102 dB/mW.
    114 dB/mW vs 102 dB/mW
  • 110 ms lower audio latency
    Audio latency
    40 ms
    ▲ Better than 77% of models
    Market range: <40 ms – >222 ms
    This pair of headphones has a lower audio latency than the average pair of headphones (40 ms vs 150 ms). The average headphones have audio latency of 150 ms.
    40 ms vs 150 ms
  • More flexible connectivity
    Connectivity
    wireless
    ▲ Better than 51% of models
    This pair of headphones offers more flexible connectivity than the average pair of headphones (wireless vs wired). The average headphones support wired connectivity.
    wireless vs wired
  • 30 hours longer battery life
    Battery life
    60 hours
    ▲ Better than 79% of models
    Market range: <10 hours – >70 hours
    This pair of headphones has a higher battery life than the average pair of headphones (60 hours vs 30 hours). The average headphones offer battery life of 30 hours.
    60 hours vs 30 hours
  • Clear call microphone
    Noise-canceling microphone
    yes
    ▲ Better than 61% of models
    This pair of headphones offers a clear call microphone, while the average pair of headphones does not. 39% of headphones support noise-canceling microphones.
  • On-device controls
    On-device controls
    yes
    ▲ Better than 53% of models
    This pair of headphones includes on-device controls, the average pair of headphones does not. 46.8% of headphones support on-device controls.
  • 13.3% better value for money
    Sudio K2 has better value for money than the average pair of headphones (8.24 vs 7.3).
    8.24 vs 7.27
  • 19 mm more spacious earcup width
    Earcup inner width
    63 mm
    ★ Better than 92% of models
    Market range: <33 mm – >60 mm
    This pair of headphones offers more spacious earcup width than the average pair of headphones (63 mm vs 44 mm). The average headphones offer an inner earcup width of 44 mm.
    63 mm vs 44 mm
  • Foldable design
    Foldable
    yes
    ▲ Better than 52% of models
    This pair of headphones has a foldable design, the average pair of headphones does not. 48.3% of headphones are foldable.
  • Water resistance
    Water resistance
    yes
    ▲ Better than 80% of models
    This pair of headphones is water resistant, the average pair of headphones is not. 20.2% of headphones are water resistant.
  • Active noise cancellation
    Active noise cancellation (ANC)
    yes
    ▲ Better than 73% of models
    This pair of headphones supports active noise cancellation, the average pair of headphones does not. 27.5% of headphones support active noise cancellation.
  • 12 dB/mW higher sensitivity
    Sensitivity
    114 dB/mW
    ▲ Better than 88% of models
    Market range: <94 dB/mW – >115 dB/mW
    This pair of headphones has a higher sensitivity than the average pair of headphones (114 dB/mW vs 102 dB/mW). The average headphones have sensitivity of 102 dB/mW.
    114 dB/mW vs 102 dB/mW
  • 11 dB SPL higher sound pressure level
    Sound pressure level
    114 dB SPL
    ▲ Better than 86% of models
    Market range: <94 dB SPL – >115 dB SPL
    This pair of headphones has a higher sound pressure level than the average pair of headphones (114 dB SPL vs 103 dB SPL). The average headphones reach a sound pressure level of 103 dB SPL.
    114 dB SPL vs 103 dB SPL
  • 30 hours longer battery life
    Battery life
    60 hours
    ▲ Better than 79% of models
    Market range: <10 hours – >70 hours
    This pair of headphones has a higher battery life than the average pair of headphones (60 hours vs 30 hours). The average headphones offer battery life of 30 hours.
    60 hours vs 30 hours
  • 0.5 hours shorter charging time
    Charging time
    1.5 hours
    ▲ Better than 87% of models
    Market range: <1.5 hours – >3.5 hours
    This pair of headphones has a lower charging time than the average pair of headphones (1.5 hours vs 2 hours). The average headphones need 2 hours to charge.
    1.5 hours vs 2 hours
  • USB-C charging
    USB Type-C
    yes
    ▲ Better than 71% of models
    This pair of headphones uses USB-C charging, the average pair of headphones does not. 29.5% of headphones use USB Type-C.
  • Rechargeable battery
    Has a rechargeable battery
    yes
    ▲ Better than 52% of models
    This pair of headphones has a rechargeable battery, the average pair of headphones does not. 47.9% of headphones have a rechargeable battery.
  • 110 ms lower audio latency
    Audio latency
    40 ms
    ▲ Better than 77% of models
    Market range: <40 ms – >222 ms
    This pair of headphones has a lower audio latency than the average pair of headphones (40 ms vs 150 ms). The average headphones have audio latency of 150 ms.
    40 ms vs 150 ms
  • More flexible connectivity
    Connectivity
    wireless
    ▲ Better than 51% of models
    This pair of headphones offers more flexible connectivity than the average pair of headphones (wireless vs wired). The average headphones support wired connectivity.
    wireless vs wired
  • AAC codec support
    AAC
    yes
    ▲ Better than 68% of models
    This pair of headphones supports AAC, the average pair of headphones does not. 32.2% of headphones support AAC.
  • Low-latency game mode
    Low-latency game mode
    yes
    ▲ Better than 79% of models
    This pair of headphones includes a low-latency game mode, the average pair of headphones does not. 21.2% of headphones support low-latency game mode.
  • Clear call microphone
    Noise-canceling microphone
    yes
    ▲ Better than 61% of models
    This pair of headphones offers a clear call microphone, while the average pair of headphones does not. 39% of headphones support noise-canceling microphones.
  • On-device controls
    On-device controls
    yes
    ▲ Better than 53% of models
    This pair of headphones includes on-device controls, the average pair of headphones does not. 46.8% of headphones support on-device controls.
  • 4 more microphones
    Number of microphones
    5
    ★ Better than 93% of models
    Market range: <0 – >4
    This pair of headphones has more microphones than the average pair of headphones (5 vs 1). The average headphones have 1 microphones.
    5 vs 1
  • Wind noise reduction
    Wind noise reduction
    yes
    ▲ Better than 66% of models
    This pair of headphones reduces wind noise, the average pair of headphones does not. 34.3% of headphones support wind noise reduction.
  • Ambient sound mode
    Ambient sound mode
    yes
    ▲ Better than 75% of models
    This pair of headphones supports ambient sound mode, the average pair of headphones does not. 24.9% of headphones support ambient sound mode.
  • 9 newer release date
    Release date
    2025
    ★ Better than 95% of models
    Market range: <2k – >2k
    This pair of headphones was released more recently than the average pair of headphones (2025 vs 2016). The average headphones were released in 2016.
    June 2025
    2025 vs 2016
  • No voice assistant support
    Voice assistant support
    no
    ▼ Worse than 61% of models
    This pair of headphones does not support voice assistants, the average pair of headphones does. 60.8% of headphones support voice assistants.
  • 2 Hz weaker bass extension
    Lowest frequency
    20 Hz
    ▼ Worse than 51% of models
    Market range: <5 Hz – >20 Hz
    This pair of headphones has a higher lowest frequency than the average pair of headphones (20 Hz vs 18 Hz). The average headphones reach a lowest frequency of 18 Hz.
    20 Hz vs 18 Hz
  • 12.4% higher weight
    Weight
    245 g
    ▼ Worse than 60% of models
    Market range: <14 g – >340 g
    This pair of headphones is heavier than the average pair of headphones (245 g vs 218 g). The average pair of headphones weighs 218 g.
    245 g vs 218 g
  • No neodymium magnet
    Neodymium magnet
    no
    ▼ Worse than 82% of models
    This pair of headphones does not use neodymium magnets, the average pair of headphones does. 81.9% of headphones use neodymium magnets.
  • 13.8% lower battery capacity
    Battery capacity
    500 mAh
    ▼ Worse than 55% of models
    Market range: <290 mAh – >1k mAh
    This pair of headphones has a lower battery capacity than the average pair of headphones (500 mAh vs 580 mAh). The average headphones have a battery capacity of 580 mAh.
    500 mAh vs 580 mAh
  • 3 hours shorter ANC battery life
    Battery life with ANC
    27 hours
    ▼ Worse than 60% of models
    Market range: <15 hours – >55 hours
    This pair of headphones has a lower battery life with ANC than the average pair of headphones (27 hours vs 30 hours). The average headphones offer battery life with ANC of 30 hours.
    27 hours vs 30 hours
  • 12.4% higher weight
    Weight
    245 g
    ▼ Worse than 60% of models
    Market range: <14 g – >340 g
    This pair of headphones is heavier than the average pair of headphones (245 g vs 218 g). The average pair of headphones weighs 218 g.
    245 g vs 218 g
  • 2 Hz weaker bass extension
    Lowest frequency
    20 Hz
    ▼ Worse than 51% of models
    Market range: <5 Hz – >20 Hz
    This pair of headphones has a higher lowest frequency than the average pair of headphones (20 Hz vs 18 Hz). The average headphones reach a lowest frequency of 18 Hz.
    20 Hz vs 18 Hz
  • No neodymium magnet
    Neodymium magnet
    no
    ▼ Worse than 82% of models
    This pair of headphones does not use neodymium magnets, the average pair of headphones does. 81.9% of headphones use neodymium magnets.
  • 3 hours shorter ANC battery life
    Battery life with ANC
    27 hours
    ▼ Worse than 60% of models
    Market range: <15 hours – >55 hours
    This pair of headphones has a lower battery life with ANC than the average pair of headphones (27 hours vs 30 hours). The average headphones offer battery life with ANC of 30 hours.
    27 hours vs 30 hours
  • 13.8% lower battery capacity
    Battery capacity
    500 mAh
    ▼ Worse than 55% of models
    Market range: <290 mAh – >1k mAh
    This pair of headphones has a lower battery capacity than the average pair of headphones (500 mAh vs 580 mAh). The average headphones have a battery capacity of 580 mAh.
    500 mAh vs 580 mAh
  • No voice assistant support
    Voice assistant support
    no
    ▼ Worse than 61% of models
    This pair of headphones does not support voice assistants, the average pair of headphones does. 60.8% of headphones support voice assistants.

Video reviews

Hands-on testing, unboxing, and real-world video evaluations

Expert reviews

In-depth analysis and verdict from leading tech publications

L
letemsvetemapplem.eu
12/12/2023
Summary of the review
Sudio K2 Review: Affordable over-ear headphones for undemanding listeners
B
besteprodukteimtest.de
22/09/2025
Summary of the review
Sudio – Bluetooth Headphones Review 2026
(Translated)Show original
L
leclaireur.fnac.com
13/02/2024
Summary of the review
SUDIO K2 Lab Test: A compelling value for money", "Sudio K2 Review: Interesting value for money
(Translated)Show original
S
statoquotidiano.it
18/04/2026
Summary of the review
Sudio K2 Wireless ANC White Review: Are They Worth Buying?
(Translated)Show original
L
letemsvetemapplem.eu
12/12/2023
Summary of the review
Studio K2 Review: Affordable over-ear headphones for casual listeners
(Translated)Show original
L
letemsvetemapplem.eu
12/12/2023
Summary of the review
Sudio K2Go to product viewer dialogue for this item. review: betaalbare over-ear-koptelefoon voor de veeleisende luisteraar
(Translated)Show original
L
letemsvetemapplem.eu
12/12/2023
Summary of the review
Affordable over-ear headphones for casual listeners
(Translated)Show original

Third-party reviews

Based on 220 buyer reviews from online shops.
Reviews last updated: June 2026 · How we calculate this
Read buyer reviews on Amazon →

What we like about Sudio K2

  • Exceptional battery life of up to 60–65 hours on a single charge
  • Highly comfortable over-ear design with soft leather ear pads suitable for long sessions
  • Effective Hybrid Active Noise Cancellation (ANC) that blocks out ambient background noise
  • Sleek and minimalist aesthetic that users find visually appealing
  • Strong value for the price, often compared favourably to more expensive competitors
  • Clear call quality supported by a five-microphone system

What we don't like about Sudio K2

  • Lacks Bluetooth Multipoint connectivity, meaning it cannot stay connected to two devices simultaneously
  • The physical on/off button is small and can be difficult to locate by touch alone
  • Touch controls can occasionally be sensitive or take time to get used to
  • Does not support spatial audio technology
  • Missing advanced features like in-ear detection for auto-pausing music

Verdict

The Sudio K2 is a pair of over-ear wireless headphones featuring 40mm dynamic drivers that deliver a sound profile characterized by deep bass and a wide soundstage across a 20Hz–20kHz frequency range. Key specifications include Hybrid Active Noise Cancellation (ANC), Bluetooth 5.3 connectivity, and an impressive battery life of up to 60 hours (reduced to approximately 27–35 hours with ANC active), with a full USB-C charge taking about 90 minutes. Its main strengths are its lightweight 245g ergonomic design with soft leather cushions for long-term comfort, a five-microphone system for clear voice calls, and discreet touch panel controls on the earcups. However, notable drawbacks include the lack of multipoint Bluetooth connection for simultaneous multi-device pairing, a lack of official voice assistant support for some users, and potential comfort issues for those with larger heads due to a reportedly snug headband fit.

Compare Sudio K2 with other products in the Headphones category

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