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CMF BY NOTHING CMF Buds 2a Wireless Earbuds Active Noise vs Sony ZX Series Wired On-Ear Headphones with Mic,

Updated August 2026 — CMF BY NOTHING CMF Buds 2a Wireless Earbuds Active Noise wins on battery and connectivity, Sony ZX Series Wired On-Ear Headphones with Mic, wins on price and portability.

The CMF Buds 2a offer superior audio quality, comfort, and features compared to the Sony ZX Series headphones, making them the better choice for most users.

Why CMF BY NOTHING CMF Buds 2a Wireless Earbuds Active Noise is better

Audio Quality

Studio-grade drivers and ANC technology

Comfort

Ergonomic design with multiple ear tips

Connectivity

Bluetooth 5.4 with multi-device support

Why Sony ZX Series Wired On-Ear Headphones with Mic, is better

Price

Significantly lower cost

Portability

Wired design allows easy storage

Brand Reputation

Established brand with reliable products

Overall score

CMF BY NOTHING CMF Buds 2a Wireless Earbuds Active Noise
85
Sony ZX Series Wired On-Ear Headphones with Mic,
60

Specifications

SpecCMF BY NOTHING CMF Buds 2a Wireless Earbuds Active NoiseSony ZX Series Wired On-Ear Headphones with Mic,
Driver Size12.4mm1.38in
Noise CancellingYesNo
Battery Life15 daysN/A
MicrophoneQuad HD ENCInline mic
WeightLightweightLightweight

Dimension comparison

CMF BY NOTHING CMF Buds 2a Wireless Earbuds Active NoiseSony ZX Series Wired On-Ear Headphones with Mic,

Design and Comfort

The CMF Buds 2a Wireless Earbuds excel in comfort and modern design, while the Sony ZX Series Wired On-Ear Headphones focus on portability with a classic style. The CMF Buds 2a are designed with an ergonomic shape and come with multiple ear tips to ensure a comfortable fit for various ear shapes. This attention to comfort has earned them recognition, as indicated by their sales rank of 152. In contrast, the Sony headphones feature cushioned earpads and a swiveling design, making them easy to store and travel with. However, they lack the same level of customization in fit as the CMF Buds 2a.

Audio Quality

When it comes to audio performance, the CMF Buds 2a outperform the Sony ZX Series in several ways. The CMF Buds 2a are equipped with studio-grade 12.4mm Bio-fiber drivers, providing a rich soundstage with prominent bass and clear mids. On the other hand, the Sony ZX headphones utilize 1.38 in neodymium dynamic drivers that deliver a punchy sound but may not match the depth of the CMF Buds. Additionally, the CMF Buds 2a feature Active Noise Cancelling (ANC) technology with a 42dB rating, enhancing audio clarity by reducing ambient noise, which is notably absent in the Sony headphones.

Connectivity

In terms of connectivity, the CMF Buds 2a offer a significant advantage with their Bluetooth 5.4 technology, allowing for a secure connection and features like Google Fast Pair and Microsoft Quick Switch. This means users can seamlessly connect to multiple devices without the hassle of wired connections. Conversely, the Sony ZX Series headphones are wired, requiring a 3.5mm L-shaped stereo mini plug for connectivity. While wired connections can sometimes provide a more stable audio experience, the freedom and convenience of wireless technology make the CMF Buds 2a a more versatile choice for active users.

Battery Life

Battery life is another area where the CMF Buds 2a shine. They provide up to 15 days of battery life with typical use, and a quick charge feature allows for 2 hours of playtime after just a 5-minute charge. This level of endurance is ideal for users who are frequently on the go. In contrast, the Sony ZX Series headphones do not rely on batteries, but their wired design limits the convenience of portability and usage time compared to the CMF Buds 2a.

Call Quality

For users who prioritize call quality, the CMF Buds 2a have a distinct advantage with their Quad HD ENC mics and advanced noise reduction technologies, ensuring clear communication in various environments. This feature is particularly beneficial for those who take calls frequently while on the move. The Sony ZX Series headphones, while equipped with an inline microphone, may not offer the same clarity and noise isolation. This difference is crucial for professionals or anyone who relies on excellent call quality.

Price Comparison

The price difference between the two products is significant. The CMF Buds 2a are priced at $43.02, while the Sony ZX Series headphones are much more budget-friendly at $15.99. This represents a difference of about 64%, making the Sony headphones approximately 17% cheaper than the average price of the CMF Buds 2a over the last 30 days. While the lower price of the Sony headphones is appealing, it’s important to consider the additional features and performance offered by the CMF Buds 2a that justify their higher price point.

Brand Reputation

Brand reputation can significantly influence purchasing decisions. CMF BY NOTHING is recognized for innovative designs and high-quality audio products, which is reflected in the CMF Buds 2a’s sales rank of 152. Sony, as a long-established leader in audio technology, brings years of experience to the table, and their ZX Series has been well-received for its solid performance and reliability. Both brands have their loyal followings, but CMF's emphasis on design and technology may appeal more to users seeking modern, high-tech audio solutions.

Which should you buy?

Choosing between the CMF Buds 2a and the Sony ZX Series headphones ultimately depends on your preferences and usage scenarios. If you value wireless convenience, superior audio quality, and advanced features such as active noise cancelling, the CMF Buds 2a are worth the investment at $43.02. However, if you're looking for an economical option for casual listening or portability without the need for advanced features, the Sony ZX Series at $15.99 is a solid choice. In summary, the CMF Buds 2a cater to audiophiles and active users, while the Sony ZX Series serves as a practical solution for everyday listening.