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Nothing CMF Buds 2 vs SoundPEATS Engine 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.

Score 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
  • SoundPEATS Engine 4
HearWiki score
82
68
Sound
7.7
7.5
Noise cancelling
7.8
-
Battery
8.8
9.0
Calls
6.5
5.7
Value
9.4
-
Price (USD)
$37
$25

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?

Mixed generations

Nothing CMF Buds 2 (2025) against SoundPEATS Engine 4 (2023). Neither is straightforwardly newer: the Nothing CMF Buds 2 brings Bluetooth 5.4 against 5.3 and ANC type Hybrid against None, while the SoundPEATS Engine 4 answers with Top codec LDAC against AAC. The Nothing CMF Buds 2 answers on convenience features: it adds Wear detection, Transparency mode and Water resistance IP55 against IPX4.

  • CMF Buds 220252 yr newer
  • Engine 42023
What differsCMF Buds 2Engine 4

Platform

Bluetooth
5.4
5.3
Top codec
AAC
LDAC
ANC type
Hybrid
None

Everyday features

Wear detection
Yes
No
Transparency mode
Yes
No
Water resistance
IP55
IPX4

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

Specifications

CMF Buds 2Engine 4
Type
True Wireless
True Wireless
Price (USD)
$37
$25
HearWiki score
82
68
Released
2025
2023
Availability
Sold new
Discontinued
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 - 40 kHz
Impedance
-
32 Ω
Bluetooth
5.4
5.3
Codecs
SBC, AAC
SBC, AAC, LDAC
Multipoint pairing
Yes
Yes
Latency
110 ms
-
Wireless range
10 m
10 m
Battery life
13.5 h
12.5 h
Battery life (ANC on)
7.5 h
-
Battery incl. case
55 h
43 h
Full charge time
93 min
120 min
Quick charge
10 min → 4 h
-
Wireless charging
No
No
Active noise cancelling
Yes
No
ANC type
hybrid
none
Transparency mode
Yes
No
Companion app
Yes
Yes
Custom EQ
Yes
Yes
Wear detection
Yes
No
Controls
touch
touch
Voice assistant
Yes
Yes
Weight
4.5 g
6.5 g
Case weight
41.5 g
43 g
Water resistance
IP55
IPX4
USB-C
Yes
Yes
Microphones
6
4
Call noise reduction
-
Yes
Call NR technology
-
ENC

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

SoundPEATS Engine 4

The SoundPEATS Engine 4 delivers impressive audio quality for its budget price, featuring a clear and balanced sound signature with support for high-resolution LDAC codec. It offers a long battery life of 12.5 hours per charge and 43 hours with the case, along with Bluetooth 5.3 multipoint connectivity for seamless device switching. However, it lacks active noise cancellation and transparency mode, and its call quality may not be the best for phone conversations.

  • Pro:Excellent sound quality for the price
  • Pro:Long battery life (12.5 hours, 43 with case)
  • Pro:LDAC support for high-resolution audio
  • Con:No active noise cancellation
  • Con:Call quality could be better
  • Con:No wireless charging

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

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New comparisonNothing CMF Buds 2SoundPEATS Engine 4