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QCY Crossky C50 vs Sennheiser Accentum Open: which should you buy?

On aggregated review scores the QCY Crossky C50 comes out ahead with a HearWiki score of 81. The full breakdown - sub-scores, specs and what reviewers actually said - is below.

Our pick: QCY Crossky C50 - Outstanding overall at around $40.

Score breakdown

Each axis is a 0–10 blend of what reviewers scored, not a lab measurement.

QCY Crossky C50 leads on 6 of 6 measures.

  • QCY Crossky C50
  • Sennheiser Accentum Open
HearWiki score
81
62
Sound
8.3
6.8
Battery
7.4
7.0
Calls
7.8
6.6
Value
9.2
8.8
Price (USD)
$40
$50

Generation & platform

The scores rank quality. This is the other question: is the newer one actually newer technology, or the same platform in a new shell?

Half a step newer

Both shipped in 2025. The QCY Crossky C50 edges ahead on platform, but only just: Bluetooth 6.0 against 5.3. It also adds Wireless charging and Water resistance IPX5 against IPX4.

  • Crossky C502025
  • Accentum Open2025
What differsCrossky C50Accentum Open

Platform

Bluetooth
6.0
5.3

Everyday features

Wireless charging
Yes
No
Water resistance
IPX5
IPX4

Level on: Top codec, Multipoint pairing, USB-C.

Specifications

Crossky C50Accentum Open
Type
Open-Ear
Open-Ear
Price (USD)
$40
$50
HearWiki score
81
62
Released
2025
2025
Availability
Sold new
Sold new
Driver
10.8 mm dynamic
11 mm dynamic
Driver type
dynamic
dynamic
Driver size
10.8 mm
11 mm
Drivers per side
1
1
Frequency response
20 Hz - 20 kHz
-
Sound signature
neutral
-
Impedance
-
150 Ω
Sensitivity
-
109 dB/mW
Bluetooth
6.0
5.3
Codecs
SBC, AAC
SBC, AAC
Multipoint pairing
Yes
Yes
Wireless range
10 m
-
Battery life
7.5 h
6.5 h
Battery incl. case
35 h
24 h
Full charge time
90 min
60 min
Quick charge
10 min → 2 h
10 min → 1 h
Wireless charging
Yes
No
Active noise cancelling
No
Yes
Companion app
Yes
-
Custom EQ
Yes
-
Controls
touch
-
Weight
5.2 g
-
Case weight
-
29.3 g
Water resistance
IPX5
IPX4
USB-C
Yes
Yes
Microphones
4
4
Call noise reduction
Yes
Yes
Call NR technology
AI ENC
beamforming

What reviewers said

QCY Crossky C50

The QCY Crossky C50 are open-ear clip-on earbuds that deliver solid everyday performance for a modest price. They combine a bass-leaning, practical sound with long battery life, multipoint connectivity, and a comfortable, secure fit that keeps you aware of your surroundings. While not aimed at audiophiles, they're a well-rounded, feature-packed option for budget-conscious listeners.

  • Pro:Comfortable, secure open-ear clip design
  • Pro:Long battery life with charging case
  • Pro:Multipoint pairing and Bluetooth 6.0
  • Con:No active noise cancellation
  • Con:Sound is more practical than premium
  • Con:Touch controls may be sensitive

Sennheiser Accentum Open

The Sennheiser Accentum Open offers open-ear listening with decent sound quality, but it’s held back by a tricky fit and a build that feels less premium than its price suggests. It includes active noise cancellation and multipoint Bluetooth, though battery life is on the shorter side for a wireless model.

  • Pro:Good sound quality for music and voice
  • Pro:Open design keeps you aware of surroundings
  • Pro:Supports multipoint Bluetooth for easy switching
  • Con:Fit can be unreliable for some users
  • Con:Build quality feels flimsy for the price
  • Con:Battery life is modest at 6.5 hours

Summaries are AI-condensed and paraphrased from published reviews and specs - not original hands-on testing. More on our method.

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