iPhone Air 2 Could Be Even Thinner While Getting a Bigger Battery

Apple may be preparing to make its ultra-thin iPhone Air even slimmer. According to a new leak, the upcoming iPhone Air 2 could measure just 5.2mm thick, making it approximately 0.4mm thinner than the current model.

The same report claims Apple could increase battery capacity despite reducing the phone's thickness, potentially addressing one of the biggest criticisms of the first-generation iPhone Air.

iPhone Air 2 Could Measure Just 5.2mm

The current iPhone Air is listed at approximately 5.6mm thick. A new claim from Korean Naver blogger “yeux1122” suggests the second-generation model could reduce that figure to around 5.2mm.

That would represent roughly a 7% reduction in thickness. Interestingly, 5.2mm is also the reported thickness of Apple's iPhone Duo when unfolded, meaning the conventional iPhone Air 2 could be about as thin as Apple's foldable iPhone in its open position.

However, Apple has not confirmed the measurement, and the leak should be treated as an early rumor.

Bigger Battery Despite the Thinner Design

Making a phone thinner normally means sacrificing internal space, particularly battery capacity. The latest iPhone Air 2 rumor is therefore notable because it claims Apple could improve battery capacity at the same time.

Previous reports have suggested a battery of around 3,500mAh, compared with an estimated 3,149mAh battery in the current iPhone Air. That would represent an increase of roughly 11%.

Apple could potentially achieve this through higher-density battery technology and a more space-efficient internal design.

A Second Rear Camera Could Finally Arrive

Battery life isn't the only area where Apple is reportedly planning improvements.

Several earlier reports have claimed that the iPhone Air 2 will add a 48MP Ultra Wide camera alongside the existing 48MP main camera. The original iPhone Air's single rear camera has been one of the most frequently mentioned compromises of the ultra-thin design.

Adding a second camera while making the phone thinner would require Apple to significantly optimize the internal layout.

A20 Pro Chip Could Power the iPhone Air 2

The iPhone Air 2 is also rumored to receive Apple's next-generation A20 Pro processor.

Earlier reports suggest the chip could use TSMC's 2nm manufacturing technology, potentially improving both performance and energy efficiency. The phone is also expected to retain a high-end hardware configuration rather than becoming a heavily compromised version of Apple's flagship lineup.

A more efficient processor could be particularly important in an ultra-thin device, where heat management and battery capacity are challenging engineering problems.

Other Rumored Upgrades

Beyond the thinner body and larger battery, reports have suggested several additional changes for the iPhone Air 2.

Possible upgrades include:

• Approximately 5.2mm body thickness
• Larger battery
• 48MP main camera
• 48MP Ultra Wide camera
• A20 Pro processor
• Smaller Dynamic Island
• Titanium frame
• C2 modem
• Next-generation wireless networking hardware
• Potentially improved thermal management

Some of these specifications remain unconfirmed and could change before launch.

When Could the iPhone Air 2 Launch?

Apple is reportedly moving toward a split iPhone launch schedule. The iPhone Air 2 is expected to arrive in spring 2027, potentially alongside the standard iPhone 18 and iPhone 18e.

The iPhone 18 Pro models and Apple's foldable iPhone are expected to remain part of the company's later-year flagship launch cycle.

Apple has not yet officially announced an iPhone Air 2 release date.

iPhone Air 2 vs. iPhone Air

Why the iPhone Air 2 Could Be More Successful

The original iPhone Air focused heavily on thinness, but that design came with compromises. Reports have pointed to concerns surrounding battery life, camera versatility and thermal performance.

Apple's rumored strategy for the second generation appears to be different: maintain the ultra-thin design while addressing some of those weaknesses.

If Apple can really make the Air 2 thinner while adding a larger battery and a second rear camera, it could make the device considerably more attractive to consumers who want a premium design without stepping up to Apple's Pro models.

Final Thoughts

The iPhone Air 2 could become one of Apple's most interesting smartphones of 2027 if the latest rumors prove accurate. A body measuring around 5.2mm, combined with a larger battery and potentially two rear cameras, would represent an impressive engineering challenge.

For now, however, the specifications remain unconfirmed. Apple has not officially announced the iPhone Air 2, so the rumored thickness, battery capacity, cameras and launch timing should be treated as leaks rather than confirmed specifications.