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Nothing CMF Buds Neo vs Tronsmart Sounfii R4: which should you buy?

On aggregated review scores the Nothing CMF Buds Neo comes out ahead with a HearWiki score of 84. The full breakdown - sub-scores, specs and what reviewers actually said - is below.

Our pick: Nothing CMF Buds Neo - Outstanding overall at around $22.

Score breakdown

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

Nothing CMF Buds Neo leads on 6 of 7 measures.

  • Nothing CMF Buds Neo
  • Tronsmart Sounfii R4
HearWiki score
84
57
Sound
7.4
6.4
Noise cancelling
7.8
-
Battery
9.0
6.4
Calls
7.8
2.0
Value
9.8
6.2
Price (USD)
$22
$17

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 Neo (2026) against Tronsmart Sounfii R4 (2024). The Nothing CMF Buds Neo edges ahead on platform, but only just: ANC type Adaptive against None. It also adds Custom EQ and Companion app.

  • CMF Buds Neo20262 yr newer
  • Sounfii R42024
What differsCMF Buds NeoSounfii R4

Platform

ANC type
Adaptive
None

Everyday features

Custom EQ
Yes
No
Companion app
Yes
No

Level on: USB-C.

Specifications

CMF Buds NeoSounfii R4
Type
True Wireless
True Wireless
Price (USD)
$22
$17
HearWiki score
84
57
Released
2026
2024
Availability
Sold new
Still sold new
Driver
12.4 mm dynamic
12 mm dynamic
Driver type
dynamic
dynamic
Driver size
12.4 mm
12 mm
Drivers per side
1
1
Frequency response
-
20 Hz - 20 kHz
Impedance
-
30 Ω
Bluetooth
-
5.3
Codecs
-
SBC, AAC
Multipoint pairing
-
No
Wireless range
-
10 m
Battery life
11 h
7 h
Battery incl. case
52 h
28 h
Full charge time
10 min
-
Quick charge
10 min → 5.5 h
-
Wireless charging
-
No
Active noise cancelling
Yes
No
ANC type
adaptive
none
Transparency mode
-
No
Companion app
Yes
No
Custom EQ
Yes
No
Wear detection
-
No
Controls
-
touch
Voice assistant
-
Yes
Weight
-
45 g
Case weight
-
35 g
Water resistance
-
IPX4
Foldable
-
No
Detachable cable
-
No
USB-C
Yes
Yes
Microphones
4
4
Call noise reduction
Yes
Yes
Call NR technology
-
ENC

What reviewers said

Nothing CMF Buds Neo

The CMF Buds Neo deliver impressive value for around $22, combining a punchy, bass-forward sound with surprisingly effective adaptive ANC and marathon battery life of up to 52 hours with the case. They offer a comfortable, lightweight fit, app support with a custom EQ, and quick charging, though some premium conveniences like wear detection are absent. Overall, they stand out as a top budget TWS option for listeners who prioritize bass, battery, and noise cancellation over extra features.

  • Pro:Strong bass-heavy sound with good volume
  • Pro:Effective adaptive ANC for the price
  • Pro:Excellent battery life (up to 52h with case)
  • Con:No wear detection sensor
  • Con:Finicky touch controls at times
  • Con:No physical pairing button on the buds

Tronsmart Sounfii R4

The Tronsmart Sounfii R4 is a wallet-friendly true wireless pair that leans into a bass-heavy signature, making it a decent pick for casual listening on a tight budget. While it offers dependable low-end punch and a practical feature set for the price, it doesn't excel in any particular area and feels like a run-of-the-mill budget option rather than a standout.

  • Pro:Strong bass response for the price
  • Pro:Compact and lightweight design
  • Pro:IPX4 water resistance for workouts
  • Con:No active noise cancellation or transparency mode
  • Con:Limited codec support (only SBC and AAC)
  • 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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New comparisonNothing CMF Buds NeoTronsmart Sounfii R4