Are AirPods 3 And 4 The Same Size? | Precise Size Breakdown

Understanding the Physical Dimensions of AirPods 3 and AirPods 4

Apple’s AirPods have always been a benchmark for wireless earbuds, combining sleek design with seamless functionality. When the AirPods 3 were released, they brought a fresh design shift from previous models—shorter stems, improved sound quality, and a more contoured fit. Naturally, when rumors and leaks about AirPods 4 began circulating, one of the most pressing questions was: Are AirPods 3 And 4 The Same Size?

From a purely physical standpoint, Apple has maintained a consistent form factor across these two generations. The AirPods 3 measure approximately 30.79 mm in height, 18.26 mm in width, and about 19.21 mm in depth. When the AirPods 4 arrived, initial impressions suggested they retained this compact frame almost identically.

Why does this matter? For users who rely on fit and comfort—whether for workouts, long listening sessions, or casual daily wear—tiny differences can impact usability. But in this case, the size consistency means accessories like charging cases and ear tips remain largely compatible between generations.

Detailed Size Comparison: AirPods 3 vs. AirPods 4

Let’s break down the exact measurements side-by-side to see where these two models stand:

Dimension	AirPods 3	AirPods 4
Height	30.79 mm (1.21 inches)	30.8 mm (1.21 inches)
Width	18.26 mm (0.72 inches)	18.3 mm (0.72 inches)
Depth	19.21 mm (0.76 inches)	19.2 mm (0.76 inches)
Weight (each earbud)	4.28 grams	4.3 grams

As you can see from these numbers, differences are marginal—measured in hundredths of millimeters or fractions of grams—which is virtually imperceptible to the user.

The Impact of Size Similarity on Use and Compatibility

Because the physical size remains so close between these two models, users benefit in several practical ways:

• Fit Consistency: Both generations share a similar ergonomic design that fits snugly inside the ear without protruding excessively.
• Accessory Compatibility: Charging cases designed for AirPods 3 can often accommodate AirPods 4 earbuds comfortably, though official recommendations should be checked.
• Eartip Options: Both models support interchangeable silicone tips that improve fit and sound isolation.

This continuity helps existing users upgrade with minimal hassle while maintaining comfort and convenience.

The Design Philosophy Behind Maintaining Size Parity

Apple’s decision to keep the size nearly identical aligns with their broader design philosophy: evolve features without disrupting user experience unnecessarily.

The AirPods line has consistently emphasized portability and comfort—two aspects directly influenced by size and shape. Introducing dramatic changes risks alienating loyal customers accustomed to how their earbuds feel during use.

Instead, Apple focused on enhancing internal components like audio drivers, battery efficiency, and wireless chipsets while preserving external dimensions.

Technological Advances Without Bulk: How Apple Achieved This Balance

Packing more technology into a small space is no easy feat. Despite keeping size steady between AirPods 3 and 4, Apple managed to introduce several upgrades:

• Improved Audio Quality: Enhanced drivers deliver richer bass and clearer mids without increasing earbud bulk.
• Sensors & Chips: Newer models include advanced spatial audio capabilities supported by updated sensors embedded within the same form factor.
• Battery Life: Slight tweaks in battery efficiency extend listening time without requiring larger batteries.
• Sweat & Water Resistance: Both generations offer IPX4 rating for sweat resistance while maintaining compactness.

These improvements show how Apple leverages miniaturization technology to pack more punch into nearly identical shells.

A Closer Look at Charging Case Differences Affecting Overall Portability

While earbuds themselves stay consistent in size, charging cases sometimes see subtle updates that affect portability or usage:

	AirPods 3 Case	AirPods 4 Case*
Height	46 mm (1.81 inches)	Slightly slimmer profile (~45-46 mm)
Width	54 mm (2.13 inches)	Around same width as previous case
Depth	21 mm (0.83 inches)	Slightly thinner depth for better pocket fit*
Total Weight	40 grams approx.	Around same weight*
*Note:	Official detailed specs for AirPods 4 case may vary; based on leaks and early reports.

The takeaway? Even if earbuds remain unchanged dimensionally, their cases might receive refinements aimed at improving carrying convenience or wireless charging capabilities.

The Subtle Ergonomic Differences Between Generations That Affect Perception of Size

Though measurements show near-identical numbers for both versions’ height, width, and depth, user perception sometimes differs due to subtle ergonomic tweaks:

• The curvature of the stem may be slightly altered to improve grip or microphone placement.
• The angle at which earbuds sit inside the ear canal could change just enough to feel different despite matching dimensions.
• The finish or texture might influence how large or small they “feel” when held or worn.
• Slight repositioning of sensors or vents can alter airflow and acoustic perception without changing external size noticeably.

These nuances are often missed unless you compare both models side-by-side but contribute meaningfully to user comfort.

The Role of Weight Distribution in Overall Fit Experience

Weight differences between AirPods 3 and 4 are negligible—both hover around just over four grams per earbud—but how that weight is distributed internally can affect comfort during extended wear.

If mass centers closer to the ear canal rather than outward on stems or casing edges, users might feel less pressure or fatigue over time.

Apple’s engineering teams likely optimized internal component placement to maintain balance while adding new hardware features without increasing bulk.

The Importance of Size Consistency for Ear Health and Comfort Over Long-Term Use

Earbuds that are too large or heavy can cause discomfort or even pain after prolonged use due to pressure points inside delicate ear structures.

By preserving almost identical sizes from generation three to four:

• User risk of irritation remains low since familiar contours don’t change abruptly.
• Eartip seals maintain effectiveness at blocking outside noise without forcing excessive insertion depth.
• The lightweight nature minimizes strain on cartilage areas prone to soreness when using heavier alternatives.
• This helps ensure listeners enjoy longer playback sessions pain-free—a crucial factor for daily commuters or remote workers relying on wireless audio gear.

Both sets sport glossy white finishes with minimalist LED indicators positioned similarly on stems or cases.

This uniform look reinforces visual cues about their similarity in size even before measuring them physically.

Apple’s design language favors smooth edges and rounded corners across all iterations—avoiding sharp lines that might suggest bulkier builds.

Such consistent aesthetics subtly reassure customers upgrading from one generation to another that they’re getting an improved product without sacrificing familiar form factors.

Frequently Asked Questions

Are AirPods 3 and 4 the same size physically?

The AirPods 3 and AirPods 4 are nearly identical in size, with only tiny dimensional differences measured in hundredths of millimeters. These minor changes are virtually imperceptible during everyday use, maintaining a consistent form factor between the two models.

How do the sizes of AirPods 3 and 4 affect fit and comfort?

Because the sizes of AirPods 3 and 4 are so similar, both models offer a snug, ergonomic fit inside the ear. This consistency ensures comfort during workouts, long listening sessions, and casual wear without noticeable differences between generations.

Does the size similarity between AirPods 3 and 4 impact accessory compatibility?

The close size match means that many accessories like charging cases and silicone ear tips designed for AirPods 3 also fit AirPods 4. This compatibility allows users to upgrade with minimal hassle while retaining their existing accessories.

What are the exact size differences between AirPods 3 and AirPods 4?

AirPods 3 measure approximately 30.79 mm in height, 18.26 mm in width, and 19.21 mm in depth. The AirPods 4 dimensions are almost identical at about 30.8 mm height, 18.3 mm width, and 19.2 mm depth—differences too small to affect daily use.

Why has Apple maintained similar sizes for AirPods 3 and 4?

Apple’s design philosophy emphasizes continuity in form factor to preserve fit, comfort, and accessory compatibility. Keeping the size nearly the same allows users to seamlessly transition between generations without sacrificing convenience or style.