Following the opening of pre-orders for the iPhone Duo, Apple has finally lifted the veil on a technical detail that was the subject of everyone’s curiosity and interest: the actual battery capacity. An official regulatory document submitted by Apple to the European Union clearly revealed that the phone carries a battery with a total capacity of 4883 mAh. This figure places the device directly in the high-end category among modern iPhones, providing a strong indicator of its ability to keep up with the demands of its innovative design.
Dual battery engineering and the phone’s position in the lineup
To achieve hardware balance and consistent weight in a foldable chassis, Apple relied on two separate cells for the iPhone Duo; the first cell has a capacity of 2962 mAh, while the second cell comes with a capacity of 1921 mAh, together forming the total capacity of 4883 mAh. This geometric distribution allows the phone to make maximum use of the internal space on both sides without affecting its thinness and fluid movement.
In purely numerical terms, the iPhone Duo sits in an ideal middle ground between the iPhone 18 Pro with a 4288 mAh capacity and the iPhone 18 Pro Max with a 5567 mAh capacity. Thus, the dual-screen phone surpasses all standard and Pro models in the physical size of its energy cells, coming remarkably close to the Pro Max category, which always holds the lead in battery capacities.
Comprehensive comparison with iPhone generations and the internal screen challenge
When placing the iPhone Duo against the modern iPhone lineup (based on eSIM versions, which usually have larger battery capacities compared to traditional SIM versions), its direct competitive position is clear as follows:
- iPhone 18 Pro Max: 5567 mAh capacity (+14% larger) – 45 hours of video playback.
- iPhone 17 Pro Max: 5088 mAh capacity (+4% larger) – 39 hours of video playback.
- iPhone Duo: 4883 mAh capacity – 44 hours on the external screen and 31 hours on the internal screen.
- iPhone 16 Pro Max: 4685 mAh capacity (-4% smaller) – 33 hours of video playback.
- iPhone 18 Pro: 4288 mAh capacity (-12% smaller) – 36 hours of video playback.
- iPhone 17 Pro: 4252 mAh capacity (-13% smaller) – 33 hours of video playback.
- iPhone 17e: 4005 mAh capacity (-18% smaller) – 26 hours of video playback.
- iPhone 17: 3692 mAh capacity (-24% smaller) – 30 hours of video playback.
- iPhone Air: 3149 mAh capacity (-36% smaller) – 27 hours of video playback.
In general, the iPhone Duo has one of the largest batteries in the history of Apple phones, and it is only surpassed in raw capacity by the latest Pro Max models. However, the most important aspect is the actual usage pattern, where Apple’s estimates show a fundamental difference between the two screens; the external screen provides a long life of up to 44 hours of video playback, while this number drops to 31 hours when continuously relying on the large, power-hungry internal screen.
Source:
Leave a Reply