Apple on Friday published an EU energy label for the iPhone Duo that reveals the device has a total battery capacity of 4,883 mAh.
The document appears to confirm a previous leak that showed the iPhone Duo has 2,962 mAh and 1,921 mAh battery cells totaling 4,883 mAh. iPhone Duo is an eSIM-only device, so this battery capacity figure should apply worldwide, as there is no version of the device with a physical SIM card tray that would have a slightly smaller battery.
For comparison, iFixit found the eSIM-only iPhone 18 Pro has a 4,288 mAh battery capacity, and the eSIM-only iPhone 18 Pro Max has a 5,567 mAh battery.
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