According to Kuo, one of the reasons for switching to soft board battery technology is that it will help to save space in the iPhone and also reduce the costs of making the device. We’re not sure if this space saving feature will result in Apple introducing a larger battery, or if the extra space could be used for other components.
Right now, the iPhone 12 features a brand new design that’s slimmer than its predecessors. Unfortunately, Apple has also opted to include a smaller battery which could be the result of not having enough space. If this soft board battery technology rumor is true, perhaps the extra space could go towards improving battery life by offering a battery with a larger capacity.
Other rumors related to the iPhone 13 include a potential upgrade in the cameras, but Apple will continue to utilize the same design. In any case, take it with a grain of salt because admittedly it is rather early to start thinking about the iPhone 13 when the iPhone 12 has only just been released.