Apple and Amazon are reportedly working on giant foldable devices, as per analyst Ming-Chi Kuo.Apple's 18.8-inch foldable device is expected for mass production in 2027 or 2028, potentially a foldable iPad.Amazon is also said to be working on a large-sized foldable product, which could be a Fire tablet rather than a phone.There is no specific information available on the rumored Amazon foldable, but it is expected for mass production earliest by next year.