True Wireless
Nothing CMF Buds 2a
78Great
$42
Full review dataNothing CMF Buds 2a vs Tronsmart Onix Neo: which should you buy?
On aggregated review scores the Nothing CMF Buds 2a comes out ahead with an HearWiki score of 78. The full breakdown - sub-scores, specs and what reviewers actually said - is below.
Our pick: Nothing CMF Buds 2a - Great overall at around $42.
True Wireless
Tronsmart Onix Neo
66Good
$22
Full review dataScore breakdown
Each axis is a 0–10 blend of what reviewers scored, not a lab measurement.
Nothing CMF Buds 2a
Sound8.0
Noise cancelling7.5
Battery7.0
Calls6.5
Value9.0
Tronsmart Onix Neo
Sound6.5
Battery6.0
Calls8.0
Value7.0
Specifications
| Spec | Nothing CMF Buds 2a | Tronsmart Onix Neo |
|---|---|---|
| Type | True Wireless | True Wireless |
| Price (USD) | $42 | $22 |
| HearWiki score | 78 / 100 · Great | 66 / 100 · Good |
| Released | 2024 | 2020 |
| Audio | ||
| Driver | 12.4mm Bio-fibre | graphene-coated drivers |
| Driver size | 12.4 mm | 6 mm |
| Drivers per side | 2 | 2 |
| Frequency response | 20Hz-20kHz | 20Hz-20kHz |
| Impedance | - | 16 Ω |
| Wireless | ||
| Bluetooth | 5.4 | Qualcomm QCC3020 |
| Bluetooth version | 5.4 | 5.0 |
| Codecs | AAC, SBC | SBC, AAC, aptX |
| Multipoint pairing | Yes | No |
| Wireless range | - | 15 m |
| Battery | ||
| Battery life | 8 h | 7 h |
| Battery life (ANC on) | 5 h | - |
| Battery incl. case | 35.5 h | 24 h |
| Full charge time | 89 min | 50 min |
| Quick charge | 10 min = 5.5 h | - |
| Wireless charging | No | No |
| Features | ||
| Active noise cancelling | Yes | No |
| ANC type | feedforward | none |
| Transparency mode | Yes | No |
| Companion app | Yes | No |
| Custom EQ | Yes | No |
| Wear detection | No | No |
| Controls | touch | - |
| Voice assistant | Yes | - |
| Design | ||
| Weight | 4.28 g | 3.6 g |
| Case weight | 42.75 g | 45 g |
| Water resistance | IP54 | none |
| USB-C | Yes | No |
| Model code | - | Tronsmart Onyx Neo |
| Calls | ||
| Microphones | 4 | - |
| Call noise reduction | - | cVc 8.0 |
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)
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.
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