> The battery capacity grows much faster than the display energy consumption, and it's not even a fight: at otherwise equivalent hardware, the larger phone has always had better battery life than the smaller one in every iPhone generation.
As an example, the Z5 Compact had a 2700mah battery in basically something ~1mm thicker than a 13 mini, which has a ~2400mah battery. The Z5 Compact is also a 7 year old phone, which didn't have wireless charging.