Wired IEMs
7Hz x Crinacle Zero: 2
83Outstanding
$25
Full review data7Hz x Crinacle Zero: 2 vs Nothing CMF Buds 2: which should you buy?
On aggregated review scores the 7Hz x Crinacle Zero: 2 comes out ahead with a HearWiki score of 83. The full breakdown - sub-scores, specs and what reviewers actually said - is below.
Our pick: 7Hz x Crinacle Zero: 2 - Outstanding overall at around $25.
True Wireless
Nothing CMF Buds 2
82Outstanding
$37
Full review dataScore breakdown
Each axis is a 0–10 blend of what reviewers scored, not a lab measurement.
7Hz x Crinacle Zero: 2 leads on 4 of 7 measures.
- 7Hz x Crinacle Zero: 2
- Nothing CMF Buds 2
HearWiki score
83
82
Sound
8.1
7.7
Noise cancelling
-
7.8
Battery
-
8.8
Calls
-
6.5
Value
9.8
9.4
Price (USD)
$25
$37
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
Nothing CMF Buds 2 (2025) against 7Hz x Crinacle Zero: 2 (2023). The Nothing CMF Buds 2 edges ahead on platform, but only just: ANC type Hybrid against None.
- x Crinacle Zero: 22023
- CMF Buds 220252 yr newer
What differsx Crinacle Zero: 2CMF Buds 2
- ANC type
- None
- Hybrid
Platform
Specifications
x Crinacle Zero: 2CMF Buds 2
- Type
- Wired IEMs
- True Wireless
- Price (USD)
- $25
- $37
- HearWiki score
- 83
- 82
- Released
- 2023
- 2025
- Availability
- Still sold new
- Sold new
- Driver
- 1DD
- 11 mm driver
- Driver type
- dynamic
- dynamic
- Driver configuration
- 1DD
- -
- Driver size
- 10 mm
- 11 mm
- Drivers per side
- 1
- 1
- Frequency response
- -
- 20 Hz - 20 kHz
- Impedance
- 32 Ω
- -
- Bluetooth
- -
- 5.4
- Codecs
- -
- SBC, AAC
- Multipoint pairing
- -
- Yes
- Latency
- -
- 110 ms
- Wireless range
- -
- 10 m
- Battery life
- -
- 13.5 h
- Battery life (ANC on)
- -
- 7.5 h
- Battery incl. case
- -
- 55 h
- Full charge time
- -
- 93 min
- Quick charge
- -
- 10 min → 4 h
- Wireless charging
- -
- No
- Active noise cancelling
- No
- Yes
- ANC type
- -
- hybrid
- Transparency mode
- -
- Yes
- Companion app
- -
- Yes
- Custom EQ
- -
- Yes
- Wear detection
- -
- Yes
- Controls
- -
- touch
- Voice assistant
- -
- Yes
- Weight
- -
- 4.5 g
- Case weight
- -
- 41.5 g
- Water resistance
- -
- IP55
- Detachable cable
- Yes
- -
- USB-C
- -
- Yes
- Connector
- 2-pin 0.78 mm
- -
- Microphones
- -
- 6
What reviewers said
7Hz x Crinacle Zero: 2
The 7Hz x Crinacle Zero: 2 is a budget-friendly wired IEM that delivers a warm, fun sound signature with excellent tuning for its price. It's a highly recommended value pick that balances musicality with solid everyday performance, making it a worthy successor in the affordable audio space.
- Pro:Excellent price-to-performance ratio
- Pro:Warm, enjoyable tuning
- Pro:Detachable 0.78 mm 2-pin cable
- Con:No active noise cancellation
- Con:Not a technical showcase
- Con:Limited to wired use
Nothing CMF Buds 2
The Nothing CMF Buds 2 are an exceptional budget true-wireless option, packing a surprisingly rich feature set for their low price. They deliver engaging sound, robust battery life, and effective hybrid ANC, making them a top-value pick for most listeners.
- Pro:Excellent value for the price
- Pro:Strong battery life with ANC off
- Pro:Effective hybrid active noise cancellation
- Con:Call performance weak in noisy settings
- Con:ANC and gaming latency not class-leading
- Con:No wireless charging support
Summaries are AI-condensed and paraphrased from published reviews and specs - not original hands-on testing. More on our method.
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