Nothing Ear (a) or OnePlus Buds 4? Which is better for calls?
If phone and video calls are your main reason for buying wireless earbuds, the OnePlus Buds 4 are the better choice. Their six microphones, AI call noise cancellation, and strong background-noise handling give your voice better clarity in busy places. The Nothing Ear (a) can also handle everyday calls well, but its microphone tends to sound thinner or less natural.
Both earbuds are aimed at buyers who want good features without paying flagship prices. The Nothing Ear (a) is the cheaper option, while the OnePlus Buds 4 cost more but put more attention on call quality, noise control, and microphone performance.
If your priority is simply “Which one will make me sound better to the person on the other end?”, the OnePlus Buds 4 have the edge.
Nothing Ear (a) vs OnePlus Buds 4 for Calls
The biggest difference is not the number of microphones alone. Both earbuds use multiple microphones and software to separate your voice from surrounding noise. What matters is how well that system works when you’re actually talking in a street, office, cafe, or other noisy place.
| Feature | Nothing Ear (a) | OnePlus Buds 4 |
|---|---|---|
| Microphones | 3 per earbud | 3 per earbud |
| Call noise reduction | Clear Voice Technology | 3-mic AI Call Noise Cancellation |
| Bluetooth | 5.3 | 5.4 |
| ANC | Up to 45 dB | Up to 55 dB |
| Transparency mode | Yes | Yes |
| Dual-device connection | Yes | Yes |
| Earbud weight | About 4.8 g | About 4.73 g |
| Water/dust rating | IP54 earbuds | IP55 earbuds |
| Best call use | Everyday calls, especially quieter places | Calls in offices, streets, cafes, and other noisy areas |
| Available |  | |
The specifications show that both models have a three-microphone system in each earbud. OnePlus adds its AI Clear Call processing, while Nothing uses Clear Voice Technology.
How the Nothing Ear (a) handles calls
The Nothing Ear (a) is not a bad calling earbud. In testing, its microphones did a good job reducing surrounding noise, and reviewers found voices understandable in office and street conditions. SoundGuys specifically found that the earbuds could isolate a speaker’s voice from background noise quite effectively.
There is one important limitation: the microphone does not always make your voice sound especially natural. RTINGS describes the microphone as thin-sounding, even though its background-noise rejection is satisfactory. Android Central also found that outdoor calls could sound somewhat muffled.
So the Ear (a) works well when you need to make normal phone calls, but it is not the strongest choice if microphone quality is your top concern.
How the OnePlus Buds 4 handles calls
The OnePlus Buds 4 are more convincing for calls. They have three microphones on each side and use AI call noise cancellation to filter background noise and wind. OnePlus specifically designed the system to focus on voice while reducing unwanted environmental sounds.
Independent testing backs that up. SoundGuys found the microphones worked well for calls and meetings and handled office, street, wind, and other noisy environments effectively. RTINGS also found that the microphone sounded clear and intelligible in real calls, even though it did not sound completely natural.
That makes the Buds 4 particularly useful if you regularly answer calls while walking outside, commuting, or working somewhere with background noise.
Which Has the Better Microphone?
OnePlus Buds 4 win.
The difference becomes clearer when you look beyond quiet-room calls. The Nothing Ear (a) can keep your voice understandable while reducing background noise, but the voice itself can sound thinner or slightly muffled.
The OnePlus Buds 4 generally produce a fuller and clearer voice while also doing a strong job of reducing environmental noise. RTINGS currently lists the Buds 4 among its recommended earbuds for phone calls and says their real-world microphone performance is better than their measured score might suggest.
For someone who spends a lot of time on calls, that is a meaningful advantage.
What About Calls in Noisy Places?
This is where the OnePlus Buds 4 pull further ahead.
Imagine you’re walking beside a busy road while talking to someone. Your earbuds need to do two things at once: capture your voice and prevent traffic, wind, and other sounds from overwhelming it.
The Buds 4’s three-microphone AI call system is designed for exactly this type of situation. Independent testing found particularly good handling of street and wind noise.
The Nothing Ear (a) also performs reasonably well in noisy surroundings. SoundGuys found that its microphones could suppress office and street noise effectively. However, other testing found that the voice could become muffled outdoors.
Winner for noisy calls: OnePlus Buds 4.
ANC Matters, But It Is Not the Same as Call Quality
It is easy to assume that stronger ANC automatically means better microphone quality. These are related but different features.
ANC mainly helps you hear the other person by reducing sounds around you. Microphone noise cancellation helps the other person hear you by processing the sound captured by the earbuds’ microphones.
The OnePlus Buds 4 offer adaptive ANC rated up to 55 dB, while the Nothing Ear (a) offers ANC up to 45 dB. These numbers are manufacturer specifications and should not be treated as a direct measurement of overall call performance.
In practice, the Buds 4 also have the stronger independent results for noise isolation, which gives them another advantage for commuting and other noisy environments.
Which Is Better for Zoom, Teams, and Work Calls?
For regular work meetings, OnePlus Buds 4 are the safer pick.
The microphones are capable of keeping speech intelligible while handling background noise, and independent testing found them suitable for calls and meetings.
The Nothing Ear (a) can certainly be used for Zoom, Teams, Google Meet, and normal phone calls. But if you spend several hours each week in meetings and want your voice to sound as clear as possible, the Buds 4 make more sense.
There is also a practical point: microphone quality matters more when you cannot control your surroundings. A quiet bedroom is easy for almost any decent earbud. A shared office is a much tougher test.
Which Is Better for Outdoor Calls?
OnePlus Buds 4.
Outdoor calls are one of the clearest situations where the Buds 4’s microphone system pays off. SoundGuys found that the earbuds handled street and wind noise particularly well.
The Nothing Ear (a) is still usable outside, but its microphone can make your voice sound less natural when background noise increases.
If you often take calls while walking, commuting, or waiting outside, I would spend the extra money on the OnePlus model.
Where the Nothing Ear (a) Still Makes More Sense
Choosing the OnePlus Buds 4 for calls does not mean the Nothing Ear (a) is the worse earbud overall.
The Nothing model has several reasons to consider it, especially if you are trying to keep your budget down. Nothing currently lists the Ear (a) at $79 in the U.S., reduced from $99, although prices can change. It also offers LDAC, dual-device connection, a comfortable lightweight design, and up to 42.5 hours of total playback with the case when ANC is off.
The Ear (a) also has a strong feature set for its price. Its three-microphone Clear Voice Technology system is good enough for everyday calls, particularly when you’re not surrounded by heavy noise.
So if you only make occasional calls and find the Ear (a) at a significantly lower price, it can still be a smart buy.
Which One Should You Buy?
Your choice becomes fairly simple based on how you use earbuds:
| Your priority | Better choice |
|---|---|
| Best microphone for calls | OnePlus Buds 4 |
| Calls in noisy places | OnePlus Buds 4 |
| Outdoor calls | OnePlus Buds 4 |
| Work meetings | OnePlus Buds 4 |
| Lower price | Nothing Ear (a) |
| Good everyday calls on a budget | Nothing Ear (a) |
| Longer total battery life with ANC off | Nothing Ear (a) |
| Stronger noise isolation | OnePlus Buds 4 |
The OnePlus Buds 4 are the more call-focused choice, while the Nothing Ear (a) becomes more attractive when price and overall value matter more than microphone performance.
Frequently Asked Questions
Still deciding between the Nothing Ear (a) and OnePlus Buds 4 for calls? These common questions cover the key differences in microphone quality, background-noise handling, and everyday call performance to help you choose the right pair.
Are OnePlus Buds 4 good for phone calls?
Yes. The OnePlus Buds 4 use three microphones per earbud with AI call noise cancellation, and independent testing found that they keep voices clear while handling background noise well.
Is Nothing Ear (a) good for calls?
Yes, especially for everyday calls in quieter environments. Its microphones handle background noise reasonably well, but several tests found that the recorded voice can sound thin or somewhat muffled compared with stronger call-focused earbuds.
Are OnePlus Buds 4 worth buying over Nothing Ear (a) for calls?
If calls are your main priority, yes. The Buds 4 offer better real-world microphone performance and stronger noise handling, while the Nothing Ear (a) makes more sense when saving money is more important than getting the better call experience.
Final Verdict
The OnePlus Buds 4 are better for calls. Their microphone system gives your voice better clarity in real-world conditions, especially when you’re dealing with traffic, wind, office noise, or other distractions. Independent testing from SoundGuys and RTINGS both supports the Buds 4 as a strong option for phone calls.
The Nothing Ear (a) is worth choosing if you can get it at a much lower price and most of your calls happen in quiet or moderately quiet places. It offers good everyday call performance without costing as much. For someone whose first question is “Which one is better for calls?”, I’d choose OnePlus Buds 4.
