CMF BY NOTHING CMF Buds 2a Wireless Earbuds Active Noise vs Soundcore P31i by Anker, Real-Time Adaptive Noise
Updated August 2026 — CMF BY NOTHING CMF Buds 2a Wireless Earbuds Active Noise wins on value and comfort, Soundcore P31i by Anker, Real-Time Adaptive Noise wins on sound and features.
The Soundcore P31i offers superior features and sound quality, making it the better choice for most users. However, the CMF Buds 2a provide great value for budget-conscious consumers.
Why CMF BY NOTHING CMF Buds 2a Wireless Earbuds Active Noise is better
Price
CMF Buds 2a are cheaper by $6.97
Comfort
Award-winning ergonomic design
Battery
Longer playtime with case
Why Soundcore P31i by Anker, Real-Time Adaptive Noise is better
Noise Cancelling
Reduces noise by up to 52 dB
Sound Quality
Hi-Res Certified Sound with LDAC
Additional Features
Real-time AI translation in 100+ languages
Overall score
Specifications
| Spec | CMF BY NOTHING CMF Buds 2a Wireless Earbuds Active Noise | Soundcore P31i by Anker, Real-Time Adaptive Noise |
|---|---|---|
| Price | $43.02 | $49.99 |
| Noise Cancelling | 42 dB | 52 dB |
| Playtime | 35.5 hours | 50 hours |
| Microphones | 4 | 6 |
| Water Resistance | IP54 | IP55 |
Dimension comparison
Price Comparison
The CMF Buds 2a are priced at $43.02, making them about 17% cheaper than the Soundcore P31i, which retails for $49.99. When considering budget constraints, the CMF Buds 2a offer a more economical choice without sacrificing essential features. For consumers looking for quality wireless earbuds at a lower price point, the CMF Buds 2a stand out due to their competitive pricing and value proposition. However, the Soundcore P31i justifies its higher cost with advanced features that may appeal to specific users.
Noise Cancelling Technology
The Soundcore P31i features advanced Real-Time Adaptive Noise Cancelling, which reduces noise by up to 52 dB, making it a strong contender for those prioritizing effective noise cancellation. In contrast, the CMF Buds 2a offer 42 dB of Smart Active Noise Cancelling, which is still substantial but falls short of the Soundcore’s capabilities. The adaptability of the Soundcore P31i allows it to adjust noise-cancelling levels based on the environment, providing a tailored experience for users. For listeners who frequently navigate noisy settings, the Soundcore P31i may be the better option.
Sound Quality
When it comes to sound quality, the Soundcore P31i boasts Hi-Res Certified Sound with LDAC technology, providing lossless audio reproduction that captures musical nuances. The CMF Buds 2a also delivers impressive sound with its studio-grade 12.4mm Bio-fiber drivers, which produce a warm soundstage and rich bass. However, the superior audio fidelity of the Soundcore P31i, especially in treble and bass balance, gives it an edge for audiophiles or those who prioritize high-quality sound in their listening experience.
Call Quality
For clear calls, the Soundcore P31i excels with six AI-enhanced microphones that work together with an AI noise reduction algorithm. This setup ensures that your voice is separated from background noise, making it ideal for outdoor use. The CMF Buds 2a also feature Quad HD ENC mics with “Clear Voice Tech,” but with fewer microphones, it may not perform as well in noisy environments. Users who frequently make calls in varied settings might find the Soundcore P31i's technology more reliable.
Battery Life
The battery life of the Soundcore P31i is particularly impressive, offering up to 50 hours of playtime with the case and 10 hours on a single charge. Even with Active Noise Cancelling (ANC) enabled, users can enjoy up to 40 hours total. The CMF Buds 2a provide about 35.5 hours of playtime with the case and 8 hours on a single charge. While both options support long listening sessions, the Soundcore P31i appeals to those who prioritize extended use without frequent recharging.
Durability and Design
In terms of durability, the Soundcore P31i has an IP55 rating, making it resistant to dust and water, ideal for workouts and outdoor activities. The CMF Buds 2a also feature an IP54 rating, which offers some protection but is slightly less robust than the P31i. Both products prioritize comfort with ergonomic designs, but the Soundcore P31i’s higher durability rating gives it an advantage for active users who need reliable performance in various conditions.
Additional Features
The Soundcore P31i includes a unique feature: real-time AI translation in over 100 languages, making them particularly useful for travelers or those who communicate across language barriers. The CMF Buds 2a focus on customization with the Nothing X app, allowing users to create unique EQ profiles and adjust ANC levels. While both earbuds offer valuable features, the Soundcore P31i’s translation capabilities may appeal more to users seeking multifunctionality.
Which should you buy?
Ultimately, the choice between the CMF Buds 2a and the Soundcore P31i depends on your specific needs. If you are budget-conscious and seek a balance of comfort, decent noise cancellation, and sufficient sound quality, the CMF Buds 2a at $43.02 is a compelling option. However, if you value advanced noise cancellation, superior sound quality, and additional features like AI translation, the Soundcore P31i, priced at $49.99, offers a richer experience. Each product has its strengths, catering to different user preferences and lifestyles.

