The new Samsung Galaxy Buds 4 have improved battery life, while the Buds 4 Pro have slightly worse battery performance.

Samsung's One UI 8.5 update contains code hinting at the battery sizes for the upcoming Galaxy Buds 4 and Galaxy Buds 4 Pro. The standard Buds 4 may have a 42 mAh battery, while the Pro model could feature a 57 mAh battery.

Here's a comparison with prior models:

Buds 2: 61 mAh

Buds 2 Pro: 61 mAh

Buds 3: 48 mAh

Buds 3 Pro: 53 mAh

This suggests the Buds 4 will have a slightly reduced battery capacity, going from 48 mAh to 42 mAh, a decrease of 12.5%. The Buds 4 Pro may see a boost from 53 mAh to 57 mAh, potentially leading to greater battery performance.

The Galaxy Buds 4's smaller battery might not equate to shorter battery life. Despite a capacity reduction in the Buds 3, comparable battery life was maintained due to Samsung's software adjustments.

For instance, the Buds 2 and Buds 3 provide roughly five hours of use, despite the Buds 3 having a smaller battery.

Charging case capacity is expected to stay largely the same.

Details on the charging case remain unconfirmed. An earlier report indicated a potential minor increase of 3% in the case capacity, which would not represent a substantial improvement.

If accurate, the Buds 4 series should deliver similar battery performance to the Buds 3.

The Buds 4 Pro appear to be improved, while the standard Buds 4 might experience a slight decrease in run time. However, Samsung's software optimization, efficient processors, and optimized ANC modes could keep the Buds 4 competitive.