The AirPods Pro 1 and the AirPods Pro 2 have an Ear Tip Fit Test, but Apple updated the process for the AirPods Pro 3. Apple suggests starting with the medium size ear tip. If you can’t achieve a good seal, switch to the larger tip. If the ear tip feels too large, switch to a smaller tip.
Apple designed new foam-infused silicone ear tips for the AirPods Pro 3, which it says are softer and less stiff than the AirPods Pro 2 ear tips. AirPods Pro 3 ear tips come in five sizes, including XXS, XS, S, M, and L. XXS is new for this generation.
For heart rate sensing, the AirPods Pro 3 need skin contact. Apple warns that the best ear tip size for heart rate sensor accuracy could differ from the best size for acoustic seal. The AirPods Pro 3 should be positioned toward your face at a 45-degree angle, with the heart rate sensor resting against the ear.
If heart rate recordings seem inconsistent, Apple recommends trying a different ear tip size.
The Acoustic Seal Test can be initiated by connecting the AirPods Pro 3 to an iPhone with iOS 26 or an iPad with iPadOS 26, going to the AirPods Settings, and selecting the Acoustic Seal Test option.
The AirPods Pro 3 will launch this Friday.
This article, “AirPods Pro 3 Use Acoustic Seal Test for Optimizing Sound Quality and ANC” first appeared on MacRumors.com
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