Earfun Air Pro 4+ Review: A Big Sound Upgrade

THE SCORECARD

How the Earfun Air Pro 4+ scored

• Comfort

  8/10

  The fit is great and super comfortable, with five sizes of grippy ear tips that should also work fine for smaller ears.

• The security of the fit

  8/10

  The grippy tips locked the buds into my ears well during weight training and a quick run, with barely any need to readjust.

• Case and battery life

  9/10

  You get 8 hours on the earbuds and 36 hours in total with the case with noise cancelling on, plus wireless charging and faster charging.

• Controls

  8/10

  Touch controls offer single, double and triple taps plus long holds, and each left or right function can be customized without limitation.

• Connectivity

  9/10

  Bluetooth 6.0, aptX Lossless, aptX Adaptive, LDAC, Google Fast Pair, LE Audio, Auracast and basic multipoint make this a very well-equipped budget earbud.

• Call quality

  8/10

  Call quality is not bad across my tests, but better earbuds are available.

• App customization and extra features

  8/10

  The app has extensive ambient, sound, control, microphone, hearing-health and connected-device options, though the hearing test did not work that well for me.

• Noise cancelling

  8/10

  ANC is on par with the Air Pro 4 and close to the OnePlus Buds 4, making it among the strongest options at this rough price range.

• A transparency mode

  7.5/10

  Transparency has decent clarity and avoids over-amplifying sounds, but moderate occlusion makes my own voice less natural.

• Sound quality

  8.5/10

  The new balanced armature brings more precise, airy and detailed treble, although its character can sound slightly metallic on cymbals and hi-hats.

The Pros and Cons

How comfortable and secure is the Earfun Air Pro 4+?

The Earfun Air Pro 4+ is basically identical to the Air Pro 4, although it is slightly larger, likely to house the extra driver. The fit is great, super comfortable, and I have no complaints. It should work fine for smaller ears too, and the five included ear-tip sizes have a nice amount of grip.

That grip helps security. In my weight-training test, the buds stayed put with barely any readjustment, and they were fine on a quick run. You will hear a slight amount of body noise from impact and heavy breathing, but they have an IP55 dust- and water-resistant rating if you use earbuds for training.

Battery life, case and controls are strong for the price

Battery life is one of the big wins. With noise cancelling on, I got the stated 8 hours from the earbuds and 36 hours in total with the case. Put the buds in the case for 10 minutes and you get 3 hours of playback. The case is compact, slightly thinner than the Air Pro 4, and its build is solid even if the plastics do not feel especially premium.

Controls are also well thought out. You can assign every touch function on either earbud without limitation, alter ambient-control switching, transfer calls, mute the mic, reject calls and adjust noise control. The wearing detection uses skin detection, so do not cover the top of the bud with your index finger if you want it to work properly.

Connectivity and app features give you plenty to work with

The Air Pro 4+ moves from Bluetooth 5.4 to Bluetooth 6.0. It supports aptX Lossless, aptX Adaptive and LDAC, alongside Google Fast Pair, LE Audio and Auracast. Basic multipoint lets two devices stay connected, although you need to pause one before playing the other. Latency was low enough on my iPhone 15 Pro and Nothing Phone 3A Pro for quicker reaction games such as shooters.

The app is loaded with options. There are adjustable noise-cancelling and transparency modes, game mode, wearing-detection and control toggles, presets and EQ, microphone choices, voice-prompt settings, hearing-health controls, LE Audio toggles and a feature that emits a beep from the earbuds to help find them. The hearing test did not work that well for me because I found the volume too high to make a decent EQ.

How good are calls, ANC and transparency?

I scored call quality 8 out of 10 after my quiet-room, crowd-noise and city-and-wind simulations. It is not bad, but there are better earbuds out there. The OnePlus Buds 4 hold the advantage here.

Noise cancelling is impressive for the rough price range and sits on par with the Air Pro 4 and close to the OnePlus Buds 4. The higher-scoring earbuds block voices and higher-frequency sounds, such as fan noise, slightly better, while low-frequency reduction is close. AI adaptive mode gave me the strongest ANC. There is also an environment mode that adapts to surrounding noise and a wind-noise mode that cuts ANC strength by about 50% to stop the mics picking up wind.

You can use ANC with only one bud in. I did notice a slight EQ shift: with ANC off or transparency on, there is about a 10% mid-bass reduction. Transparency is decent and has enough clarity without making sounds overly amplified, but moderate occlusion gives my own voice a blocked-ear effect. The OnePlus Buds 4 are noticeably better for both clarity and occlusion.

The dual-driver sound is the real Air Pro 4+ upgrade

Sound quality is the real upgrade over the Air Pro 4. The Air Pro 4+ pairs the same 10 mm dynamic driver with a balanced armature, and that extra driver delivers very impressive treble. Compared with the stock tuning of the Air Pro 4, treble is more boosted, more precise and more detailed, with extra upper-treble presence that gives the sound a more open soundstage.

It is forward without becoming too harsh, though longer sessions could get a bit fatiguing. I preferred bringing the treble down slightly in EQ and lifting the upper mids and mids a little, as these are slightly reduced compared with the Air Pro 4. Lower mids are nicely boosted, so male vocals and lower-range vocals sound rich.

Bass is similar to the Air Pro 4: slightly boosted, rich and powerful, but not over the top. Kick drums have punch, deep sub-bass arrives when needed, and you can reduce the bass by a couple of decibels in the EQ if it is too much. The only real quirk is a slightly metallic treble character, most noticeable with crashes, cymbals and hi-hats. As a drummer, I liked the crisp, detailed hi-hat sound, and I got more used to the character over time.

After EQ, the Air Pro 4+ sounds very similar to the OnePlus Buds 4 after EQ. The Earfun has ever so slightly more direct treble and slightly better instrument separation in those high frequencies, but it is very close.