Business
Apple unsure when it will get more foldable iPhones ahead of Christmas
The tech giant reports strong sales but admits "constraints" are affecting supplies of the iPhone Duo.
BBC Business•
Apple has said it does not know when it will get more of its new foldable iPhones back in stock as the company heads towards the key Christmas trading period.
The iPhone Duo sold out just over a week after its launch, despite being Apple's most expensive smartphone at a cost of nearly $2,000.
The company warned of "constraints" in sourcing key components and admitted it was "really hard to predict when supply and demand will be in balance".
However, sales for both the iPad and Apple's wearable products, including its headphones and watch, fell by 10% and 7%, respectively.