https://wccftech.com/all-iphone-13-models-thicker-heavier-than-iphone-12/

During the iPhone 13 presentation, one little detail that Apple left out was that all four models are not just thicker than their direct iPhone 12 predecessors but also heavier. Fortunately, there is a reason why this change was introduced, and it will likely not break the buyer’s decision.

Given below is a weight comparison of the latest iPhone 13 models against their direct predecessors.