Open-Ear
QCY Crossky C50
81Outstanding
$40
Full review dataQCY Crossky C50 vs TOZO O2 Open Buds: 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.
Open-Ear
TOZO O2 Open Buds
61Average
$60
Full review dataScore 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
- TOZO O2 Open Buds
HearWiki score
81
61
Sound
8.3
6.2
Battery
7.4
7.1
Calls
7.8
5.8
Value
9.2
7.1
Price (USD)
$40
$60
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
QCY Crossky C50 (2025) against TOZO O2 Open Buds (2024). The QCY Crossky C50 edges ahead on platform, but only just: Bluetooth 6.0 against 5.3.
- Crossky C5020251 yr newer
- O2 Open Buds2024
What differsCrossky C50O2 Open Buds
- Bluetooth
- 6.0
- 5.3
- Multipoint pairing
- Yes
- No
- Water resistance
- IPX5
- IPX6
Platform
Everyday features
Level on: Top codec, Wireless charging, USB-C, Custom EQ, Companion app.
Specifications
Crossky C50O2 Open Buds
- Type
- Open-Ear
- Open-Ear
- Price (USD)
- $40
- $60
- HearWiki score
- 81
- 61
- Released
- 2025
- 2024
- Availability
- Sold new
- Still sold new
- Driver
- 10.8 mm dynamic
- 14.2 mm dynamic
- Driver type
- dynamic
- dynamic
- Driver size
- 10.8 mm
- 14.2 mm
- Drivers per side
- 1
- 1
- Frequency response
- 20 Hz - 20 kHz
- 20 Hz - 20 kHz
- Sound signature
- neutral
- -
- Bluetooth
- 6.0
- 5.3
- Codecs
- SBC, AAC
- SBC, AAC
- Multipoint pairing
- Yes
- No
- Wireless range
- 10 m
- 10 m
- Battery life
- 7.5 h
- 12 h
- Battery incl. case
- 35 h
- 42 h
- Full charge time
- 90 min
- 90 min
- Quick charge
- 10 min → 2 h
- -
- Wireless charging
- Yes
- Yes
- Active noise cancelling
- No
- No
- Companion app
- Yes
- Yes
- Custom EQ
- Yes
- Yes
- Controls
- touch
- touch
- Voice assistant
- -
- Yes
- Weight
- 5.2 g
- -
- Water resistance
- IPX5
- IPX6
- USB-C
- Yes
- Yes
- Microphones
- 4
- 1
- Call noise reduction
- Yes
- Yes
- Call NR technology
- AI ENC
- noise-cancelling mic
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
TOZO O2 Open Buds
The TOZO O2 Open Buds are an affordable open-ear option aimed at active users, offering a secure fit, reliable Bluetooth 5.3 connectivity, and a substantial 42-hour total battery life with the charging case. While the 14.2 mm drivers deliver adequate, crisp sound for the price, audiophiles may find the audio performance functional rather than exceptional, and real-world battery life might not always match the manufacturer's claims.
- Pro:Secure, comfortable fit for sports and exercise
- Pro:Stable Bluetooth 5.3 connection
- Pro:Long total battery life with charging case (42 hours)
- Con:Sound quality is decent but not outstanding for critical listening
- Con:Reported battery life may be shorter than advertised in real-world use
- Con:No active noise cancellation or multipoint pairing
Summaries are AI-condensed and paraphrased from published reviews and specs - not original hands-on testing. More on our method.
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