True Wireless
Nothing CMF Buds 2a
78Great
$42
Full review dataNothing CMF Buds 2a vs Soundcore Space A40: 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
Soundcore Space A40
78Great
$41
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
Soundcore Space A40
Sound7.5
Noise cancelling8.5
Battery7.0
Calls7.0
Value8.0
Specifications
| Spec | Nothing CMF Buds 2a | Soundcore Space A40 |
|---|---|---|
| Type | True Wireless | True Wireless |
| Price (USD) | $42 | $41 |
| HearWiki score | 78 / 100 · Great | 78 / 100 · Great |
| Released | 2024 | 2022 |
| Audio | ||
| Driver | 12.4mm Bio-fibre | dynamic |
| Driver size | 12.4 mm | 10 mm |
| Drivers per side | 2 | 2 |
| Frequency response | 20Hz-20kHz | - |
| Impedance | - | 16 Ω |
| Wireless | ||
| Bluetooth | 5.4 | 5.2 |
| Bluetooth version | 5.4 | 5.2 |
| Codecs | AAC, SBC | SBC, AAC, LDAC |
| Multipoint pairing | Yes | Yes |
| Wireless range | - | 10 m |
| Battery | ||
| Battery life | 8 h | 10 h |
| Battery life (ANC on) | 5 h | 8 h |
| Battery incl. case | 35.5 h | 50 h |
| Full charge time | 89 min | - |
| Quick charge | 10 min = 5.5 h | 10 min = 4 h |
| Wireless charging | No | Yes |
| Features | ||
| Active noise cancelling | Yes | Yes |
| ANC type | feedforward | adaptive |
| Transparency mode | Yes | Yes |
| Companion app | Yes | - |
| Custom EQ | Yes | Yes |
| Wear detection | No | No |
| Controls | touch | touch |
| Voice assistant | Yes | - |
| Design | ||
| Weight | 4.28 g | 4.9 g |
| Case weight | 42.75 g | 48.4 g |
| Water resistance | IP54 | IPX4 |
| USB-C | Yes | Yes |
| Calls | ||
| Microphones | 4 | 6 |
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)
Soundcore Space A40
The Soundcore Space A40 earbuds deliver a well-rounded budget experience, combining effective adaptive noise cancellation, balanced audio, and long battery life with multipoint connectivity. They offer strong value at around $100, with a comfortable fit and support for LDAC, though a few ergonomic and performance quirks keep them from being flawless.
- Pro:Effective adaptive ANC for the price
- Pro:Balanced, pleasant sound with LDAC support
- Pro:Long battery life with wireless charging case
- Con:Microphone quality is mediocre
- Con:Touch controls can be inconsistent
- Con:Case hinge feels less sturdy
Summaries are AI-condensed and paraphrased from published reviews and specs - not original hands-on testing. More on our method.
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