True Wireless
Nothing CMF Buds 2
82Outstanding
$37
Full review dataNothing CMF Buds 2 vs Xiaomi Redmi Buds 4: which should you buy?
On aggregated review scores the Nothing CMF Buds 2 comes out ahead with a HearWiki score of 82. The full breakdown - sub-scores, specs and what reviewers actually said - is below.
Our pick: Nothing CMF Buds 2 - Outstanding overall at around $37.
True Wireless
Xiaomi Redmi Buds 4
67Good
$30
Full review dataScore breakdown
Each axis is a 0–10 blend of what reviewers scored, not a lab measurement.
Nothing CMF Buds 2 leads on 5 of 7 measures.
- Nothing CMF Buds 2
- Xiaomi Redmi Buds 4
HearWiki score
82
67
Sound
7.7
6.2
Noise cancelling
7.8
5.1
Battery
8.8
5.2
Calls
6.5
6.9
Value
9.4
7.4
Price (USD)
$37
$30
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 Xiaomi Redmi Buds 4 (2022). The Nothing CMF Buds 2 edges ahead on platform, but only just: Bluetooth 5.4 against 5.2. It also adds Multipoint pairing and Water resistance IP55 against IP54.
- CMF Buds 220253 yr newer
- Redmi Buds 42022
What differsCMF Buds 2Redmi Buds 4
- Bluetooth
- 5.4
- 5.2
- Multipoint pairing
- Yes
- No
- Water resistance
- IP55
- IP54
Platform
Everyday features
Level on: Top codec, ANC type, USB-C, Wear detection, Transparency mode.
Specifications
CMF Buds 2Redmi Buds 4
- Type
- True Wireless
- True Wireless
- Price (USD)
- $37
- $30
- HearWiki score
- 82
- 67
- Released
- 2025
- 2022
- Availability
- Sold new
- Still sold new
- Driver
- 11 mm driver
- 10 mm dynamic
- Driver type
- dynamic
- dynamic
- Driver size
- 11 mm
- 10 mm
- Drivers per side
- 1
- 1
- Frequency response
- 20 Hz - 20 kHz
- 20 Hz - 20 kHz
- Impedance
- -
- 32 Ω
- Bluetooth
- 5.4
- 5.2
- Codecs
- SBC, AAC
- SBC, AAC
- Multipoint pairing
- Yes
- No
- Latency
- 110 ms
- -
- Wireless range
- 10 m
- 10 m
- Battery life
- 13.5 h
- 6 h
- Battery life (ANC on)
- 7.5 h
- 4 h
- Battery incl. case
- 55 h
- 30 h
- Full charge time
- 93 min
- 90 min
- Quick charge
- 10 min → 4 h
- 5 min → 1 h
- Wireless charging
- No
- No
- Active noise cancelling
- Yes
- Yes
- ANC type
- hybrid
- hybrid
- Transparency mode
- Yes
- Yes
- Companion app
- Yes
- -
- Custom EQ
- Yes
- -
- Wear detection
- Yes
- Yes
- Controls
- touch
- touch
- Voice assistant
- Yes
- -
- Weight
- 4.5 g
- -
- Case weight
- 41.5 g
- 50.5 g
- Water resistance
- IP55
- IP54
- USB-C
- Yes
- Yes
- Microphones
- 6
- 2
- Call noise reduction
- -
- Yes
What reviewers said
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
Xiaomi Redmi Buds 4
The Xiaomi Redmi Buds 4 are budget-friendly true wireless earbuds with a distinctive design, comfortable fit, and clear call quality. They feature hybrid active noise cancellation and a solid transparency mode, though battery life with ANC on is modest. Overall, they offer good value for the price, with a few notable trade-offs.
- Pro:Comfortable fit for extended wear
- Pro:Clear call quality with dual mics
- Pro:Effective transparency mode
- Con:Battery life drops to 4 hours with ANC
- Con:No wireless charging support
- Con:No multipoint connection
Summaries are AI-condensed and paraphrased from published reviews and specs - not original hands-on testing. More on our method.
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