Apple's foldable iPhone is expected to arrive in September against a rival already outrunning its own forecasts.

ETNews reports Samsung is building an extra one million Galaxy Z Fold 8 units, after the 4:3 device took 70 percent of a record 1.44 million Galaxy Z8 series pre-orders. Apple's foldable display – made by Samsung – is rumored to use the same aspect ratio in the same book-style form factor.