YouTube channels REWA Technology and Phone Repair Guru have released teardown videos of the iPhone Duo. The device features two battery cells that can be removed using electrically-activated adhesive, totaling 4,883 mAh. The larger battery has a 2,962 mAh capacity, while the smaller one is rated at 1,921 mAh. REWA Technology's video provides a labeled breakdown of the logic board, revealing components like Apple's A20 Pro chip and C2 cellular modem. Phone Repair Guru noted that the Touch ID button is removable, though difficult to access for repairs. They also highlighted the iPhone Duo's apparently modular USB-C charging port. The iPhone Duo is exclusively an eSIM-only device globally. iFixit is expected to release a more detailed teardown and analysis soon. Apple has also published a repair manual for the iPhone Duo. These teardowns offer initial insights into the internal design and repairability of the device.