iPhone Duo battery capacity lands in between iPhone 18 Pro & Pro Max

Apple has published the overall capacity of the two-battery iPhone Duo in a regulatory filing, showing exactly how it compares to the iPhone 18 Pro and more.
Apple's iPhone Duo.
Initial rumors claimed that the iPhone Duo would have the largest battery capacity of any iPhone ever made. Then real-world tests showed it performs practically the same as the iPhone 18 Pro, but now the figures are out.As reported by Apple in its EU Energy Labels regulatory filing, the iPhone Duo's battery capacity is 4