Skip to content
HearWiki

Nothing CMF Buds 2 vs Tronsmart Onix Neo: 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
  • Tronsmart Onix Neo
HearWiki score
82
52
Sound
7.7
5.6
Noise cancelling
7.8
-
Battery
8.8
5.1
Calls
6.5
6.8
Value
9.4
-
Price (USD)
$37
$22

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 Tronsmart Onix Neo (2020). Neither is straightforwardly newer: the Nothing CMF Buds 2 brings Bluetooth 5.4 against 5.0 and ANC type Hybrid against None, while the Tronsmart Onix Neo answers with Top codec aptX against AAC. The Nothing CMF Buds 2 answers on convenience features: it adds Multipoint pairing, USB-C, Wear detection and Transparency mode.

  • CMF Buds 220255 yr newer
  • Onix Neo2020
What differsCMF Buds 2Onix Neo

Platform

Bluetooth
5.4
5.0
Top codec
AAC
aptX
ANC type
Hybrid
None

Everyday features

Multipoint pairing
Yes
No
USB-C
Yes
No
Wear detection
Yes
No
Transparency mode
Yes
No
Custom EQ
Yes
No
Companion app
Yes
No
Water resistance
IP55
IPX5

Specifications

CMF Buds 2Onix Neo
Type
True Wireless
True Wireless
Price (USD)
$37
$22
HearWiki score
82
52
Released
2025
2020
Availability
Sold new
Discontinued
Driver
11 mm driver
6 mm dynamic
Driver type
dynamic
dynamic
Driver size
11 mm
6 mm
Drivers per side
1
1
Frequency response
20 Hz - 20 kHz
20 Hz - 20 kHz
Impedance
-
16 Ω
Bluetooth
5.4
5.0
Codecs
SBC, AAC
AAC, aptX
Multipoint pairing
Yes
No
Latency
110 ms
-
Wireless range
10 m
15 m
Battery life
13.5 h
7 h
Battery life (ANC on)
7.5 h
-
Battery incl. case
55 h
24 h
Full charge time
93 min
50 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
No
Custom EQ
Yes
No
Wear detection
Yes
No
Controls
touch
touch
Voice assistant
Yes
-
Weight
4.5 g
3.6 g
Case weight
41.5 g
45 g
Water resistance
IP55
IPX5
USB-C
Yes
No
Model code
-
Tronsmart Onyx Neo
Microphones
6
-
Call noise reduction
-
Yes
Call NR technology
-
cVc 8.0

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

Tronsmart Onix Neo

The Tronsmart Onyx Neo is a budget-friendly true wireless option that prioritizes clear, bright audio and reliable call performance over responsiveness. While its touch controls feel unresponsive and laggy, it compensates with solid video sync and dependable voice clarity, making it a mixed bag for its price point. It offers a different sonic character than its predecessor but doesn't fully win over users seeking a polished experience.

  • Pro:Bright and clear sound quality
  • Pro:Excellent call quality
  • Pro:Good for video playback with minimal lag
  • Con:Sluggish touch controls
  • Con:Lacks overall polish
  • Con:Not an upgrade in sound over predecessor

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

Compare something else

Swap either side out, or start again from the picker.

New comparisonNothing CMF Buds 2Tronsmart Onix Neo