Today is an important day for Huawei. The Chinese firm has presented a huge number of devices and has not missed the opportunity to renew its open design headphones with active noise cancellation. In other words, the Huawei FreeBuds 4 is now official.

They are headphones that follow in the wake of the devices previously announced by the company in terms of design. However, Huawei has worked to make them more compact, lighter, and more powerful. Of course, they come with active noise cancellation, something we do not usually see in this type of headphones with an open design.

Huawei FreeBuds 4 datasheet

Huawei FreeBuds 4
Dimensions and WeightHeadphones: 41.4 x 18.5 x 16.8 mm – 4.1 grams
Case: 58 x 58 x 21.2 mm – 38 grams
Diaphragm Unit14.3 mm
ConnectionBluetooth 5.2
CompatibilityiOS, Android
BatteryHeadphones: 30 mAh
Case: 410 mAh
AutonomyHeadphones: up to 4 hours
Case: up to 20 hours
Charging CaseUSB type C
Extra FeaturesDual connection
90 ms
ANC latency up to 25 dB
Adaptive ANC adjustment
Touch controls
Price999 yuan about $156/€127

Noise cancellation in open design? Yes

Huawei FreeBuds 4

On the outside, the FreeBuds 4 are completely wireless headphones to use. Spread throughout its chassis is the position sensor, three microphones (two for noise cancellation and another to measure the echo of the ear canal).

Each earphone weighs 4.1 grams, not bad considering that the previous ones were already light and weighed 5.4 grams. They are also somewhat smaller since they occupy 6% less volume. It has a touch surface, which means that you can perform actions quickly using touches or gestures, including raising and lowering the volume by sliding up or down.

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Huawei FreeBuds 4

As for the sound, Huawei has mounted a 14.3 mm driver (not a negligible figure, of course) with a frequency range that reaches 40 KHz. According to Huawei, bass performance has been improved by 50%, therefore, in principle, we can expect a bit more punch.

Something interesting is that the headphones have artificial intelligence. This serves to give life to the adaptive equalizer, which analyzes the type of ear channel and adapts the equalizer to each user. We will have to see how it works in practice.

Huawei FreeBuds 4

But undoubtedly, the most striking thing is that, although they are open headphones (they do not have silicone pads to seal the ear), they have active noise cancellation. Specifically, Huawei claims that they can cancel up to 25 dB using a dual-microphone system. Not only that, but the third microphone measures the echo that occurs in the ear canal to apply one of 16 ANC modes. The company claims this is done in a matter of milliseconds.

On the other hand, the headphones have a dual connection (so we will be able to connect them to two devices and switch between them), use Bluetooth 5.2, and have 90 milliseconds of latency, 50% less than the FreeBuds 3. Huawei promises up to 4 hours of autonomy per charge, 22 hours in total counting the case, and a fast-charging system that will give 2.5 hours of autonomy in half an hour.

Pricing and Availability of the Huawei FreeBuds 4

Huawei FreeBuds 4

The Huawei FreeBuds 4 have a starting price of 999 yuan, which at the exchange rate is approximately about $156/€127.

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