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Nothing CMF Buds 2a vs OnePlus Buds Pro 4: which should you buy?

On aggregated review scores the OnePlus Buds Pro 4 comes out ahead with an HearWiki score of 87. The full breakdown - sub-scores, specs and what reviewers actually said - is below.

Our pick: OnePlus Buds Pro 4 - Outstanding overall at around $130.

Score breakdown

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

OnePlus Buds Pro 4 leads on 5 of 7 measures.

  • Nothing CMF Buds 2a
  • OnePlus Buds Pro 4
HearWiki score
77
87
Sound
8.0
8.5
Noise cancelling
7.5
8.0
Battery
7.0
8.5
Calls
6.5
7.5
Value
9.0
9.0
Price (USD)
$42
$130

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?

New platform

OnePlus Buds Pro 4 (2026) against Nothing CMF Buds 2a (2024). The OnePlus Buds Pro 4 is the newer platform here: Top codec LHDC against AAC and ANC type Adaptive against Feed-forward. It also adds Wireless charging, Wear detection and Water resistance IP55 against IP54.

  • CMF Buds 2a2024
  • Buds Pro 420262 yr newer
What differsCMF Buds 2aBuds Pro 4

Platform

Top codec
AAC
LHDC
ANC type
Feed-forward
Adaptive

Everyday features

Wireless charging
No
Yes
Wear detection
No
Yes
Water resistance
IP54
IP55

Level on: Bluetooth, Multipoint pairing, USB-C, Transparency mode, Custom EQ, Companion app.

Specifications

CMF Buds 2aBuds Pro 4
Type
True Wireless
True Wireless
Price (USD)
$42
$130
HearWiki score
77
87
Released
2024
2026
Availability
Discontinued
Sold new
Driver
12.4 mm driver
11 mm dynamic
Driver type
-
dynamic
Driver size
12.4 mm
11 mm
Drivers per side
1
1
Frequency response
20 Hz - 20 kHz
10 Hz - 40 kHz
Bluetooth
5.4
5.4
Codecs
SBC, AAC
SBC, AAC, LHDC
Multipoint pairing
Yes
Yes
Latency
-
47 ms
Wireless range
-
10 m
Battery life
8 h
13 h
Battery life (ANC on)
5 h
7 h
Battery incl. case
35.5 h
54 h
Full charge time
89 min
70 min
Quick charge
10 min → 5.5 h
10 min → 11 h
Wireless charging
No
Yes
Active noise cancelling
Yes
Yes
ANC type
feedforward
adaptive
Transparency mode
Yes
Yes
Companion app
Yes
Yes
Custom EQ
Yes
Yes
Wear detection
No
Yes
Controls
touch
touch
Voice assistant
Yes
Yes
Weight
4.3 g
4.7 g
Case weight
42.8 g
50.6 g
Water resistance
IP54
IP55
USB-C
Yes
Yes
Model code
-
OnePlus Buds 4
Microphones
4
3

What reviewers said

Nothing CMF Buds 2a

The Nothing CMF Buds 2a deliver a compelling mix of solid audio performance, adaptive noise cancellation, and long battery life at a very accessible price point. They are a practical pick for budget-conscious listeners who want reliable everyday earbuds with app-based customization, though they come with some expected trade-offs in materials and features.

  • Pro:Strong value for the price
  • Pro:Adaptive ANC with 42 dB reduction
  • Pro:Good battery life with case
  • Con:Plasticky build quality
  • Con:No in-ear detection
  • Con:Limited codec support (AAC, SBC)

OnePlus Buds Pro 4

The OnePlus Buds Pro 4 are a well-rounded pair of true wireless earbuds that deliver impressive audio, adaptive noise cancellation, and strong battery life for their price. They're particularly suited for active lifestyles thanks to their IP55 rating and secure fit, with a feature set that includes multipoint, wireless charging, and customizable EQ. Overall, they offer excellent value and perform above their price point across most key areas.

  • Pro:Rich dual-driver sound with LHDC support
  • Pro:Effective adaptive ANC and transparency mode
  • Pro:Long battery life with wireless charging case
  • Con:Touch controls may require a learning curve
  • Con:No official mention of wear detection
  • Con:Slightly bulky case compared to rivals

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

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