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1MORE PistonBuds/ Omthing Airfree vs Nothing CMF Buds 2: 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 6 of 7 measures.

  • 1MORE PistonBuds/ Omthing Airfree
  • Nothing CMF Buds 2
HearWiki score
51
82
Sound
5.8
7.7
Noise cancelling
-
7.8
Battery
2.9
8.8
Calls
5.1
6.5
Value
5.8
9.4
Price (USD)
$33
$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?

New platform

Nothing CMF Buds 2 (2025) against 1MORE PistonBuds/ Omthing Airfree (2020). The Nothing CMF Buds 2 is the newer platform here: Bluetooth 5.4 against 5.0 and ANC type Hybrid against None. It also adds Multipoint pairing, Wear detection, Transparency mode and Custom EQ.

  • PistonBuds/ Omthing Airfree2020
  • CMF Buds 220255 yr newer
What differsPistonBuds/ Omthing AirfreeCMF Buds 2

Platform

Bluetooth
5.0
5.4
ANC type
None
Hybrid

Everyday features

Multipoint pairing
No
Yes
Wear detection
No
Yes
Transparency mode
No
Yes
Custom EQ
No
Yes
Companion app
No
Yes
Water resistance
IPX4
IP55

Level on: Top codec, USB-C.

Specifications

PistonBuds/ Omthing AirfreeCMF Buds 2
Type
True Wireless
True Wireless
Price (USD)
$33
$37
HearWiki score
51
82
Released
2020
2025
Availability
Discontinued
Sold new
Driver
7 mm dynamic
11 mm driver
Driver type
dynamic
dynamic
Driver size
7 mm
11 mm
Drivers per side
1
1
Frequency response
20 Hz - 20 kHz
20 Hz - 20 kHz
Impedance
16 Ω
-
Bluetooth
5.0
5.4
Codecs
SBC, AAC
SBC, AAC
Multipoint pairing
No
Yes
Latency
-
110 ms
Wireless range
10 m
10 m
Battery life
3.5 h
13.5 h
Battery life (ANC on)
-
7.5 h
Battery incl. case
20 h
55 h
Full charge time
90 min
93 min
Quick charge
-
10 min → 4 h
Wireless charging
No
No
Active noise cancelling
No
Yes
ANC type
none
hybrid
Transparency mode
No
Yes
Companion app
No
Yes
Custom EQ
No
Yes
Wear detection
No
Yes
Controls
touch
touch
Voice assistant
-
Yes
Weight
4.2 g
4.5 g
Case weight
43.3 g
41.5 g
Water resistance
IPX4
IP55
USB-C
Yes
Yes
Microphones
4
6
Call noise reduction
Yes
-
Call NR technology
ENC
-

What reviewers said

1MORE PistonBuds/ Omthing Airfree

The 1MORE PistonBuds, also known as the Omthing Airfree, are ultra-affordable true wireless earbuds that prioritize comfort and portability with a lightweight build and IPX4 splash resistance. They deliver a bass-forward sound signature and solid call quality for the price, though their short per-charge battery life and occasional connectivity quirks hold them back from being top-tier budget picks. Overall, they offer a decent package for casual listeners seeking a very cheap and comfortable daily pair.

  • Pro:Very affordable price point
  • Pro:Lightweight and comfortable fit
  • Pro:Decent call quality with four mics
  • Con:Short battery life of 3.5 hours per charge
  • Con:Bass-heavy tuning may not suit all tastes
  • Con:Bluetooth connection can be unstable

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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