True Wireless
Nothing CMF Buds 2a
78Great
$42
Full review dataNothing CMF Buds 2a vs UGREEN HiTune S3: 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
UGREEN HiTune S3
58Average
$25
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
UGREEN HiTune S3
Sound4.5
Battery7.0
Calls5.5
Value6.5
Specifications
| Spec | Nothing CMF Buds 2a | UGREEN HiTune S3 |
|---|---|---|
| Type | True Wireless | True Wireless |
| Price (USD) | $42 | $25 |
| HearWiki score | 78 / 100 · Great | 58 / 100 · Average |
| Released | 2024 | 2022 |
| Audio | ||
| Driver | 12.4mm Bio-fibre | dynamic |
| Driver size | 12.4 mm | 12 mm |
| Drivers per side | 2 | 1 |
| Frequency response | 20Hz-20kHz | 20Hz-20kHz |
| Impedance | - | 32 Ω |
| Wireless | ||
| Bluetooth | 5.4 | 5.4 |
| Bluetooth version | 5.4 | 5.4 |
| Codecs | AAC, SBC | AAC, SBC |
| Multipoint pairing | Yes | Yes |
| Latency | - | 60 ms |
| Wireless range | - | 10 m |
| Battery | ||
| Battery life | 8 h | 7.5 h |
| Battery life (ANC on) | 5 h | - |
| Battery incl. case | 35.5 h | 30 h |
| Full charge time | 89 min | 90 min |
| Quick charge | 10 min = 5.5 h | 15 min = 2 h |
| Wireless charging | No | No |
| Features | ||
| Active noise cancelling | Yes | Yes |
| ANC type | feedforward | none |
| Transparency mode | Yes | Yes |
| Companion app | Yes | No |
| Custom EQ | Yes | No |
| Wear detection | No | No |
| Controls | touch | touch |
| Voice assistant | Yes | language assistant support |
| Design | ||
| Weight | 4.28 g | 5.3 g |
| Case weight | 42.75 g | - |
| Water resistance | IP54 | IPX5 |
| USB-C | Yes | Yes |
| Calls | ||
| Microphones | 4 | 2 |
| Call noise reduction | - | AI call noise cancellation |
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)
UGREEN HiTune S3
The UGREEN HiTune S3 is an affordable open-ear TWS option that prioritizes comfort, lightweight wear, and practical extras like low-latency gaming mode and multipoint connectivity. While it delivers solid battery life and keeps you aware of your surroundings, its sound profile is a clear compromise—especially in bass and overall fidelity—and there's no companion app for tuning. It's a sensible pick for casual daily use, not for audiophiles or bass lovers.
- Pro:Very lightweight and comfortable for extended wear
- Pro:Low-latency game mode works well for gaming
- Pro:Good battery endurance for the price
- Con:Sound quality is weak, especially bass and detail
- Con:No app or EQ adjustments available
- Con:Maximum volume may feel limited in noisy environments
Summaries are AI-condensed and paraphrased from published reviews and specs - not original hands-on testing. More on our method.
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