iPhone 4S Stock Update : None Left At CPW, Phones4U

As expected, demand for the iPhone 4S has largely outstripped supply and while Apple already said that it has sold more than four million handsets in the first 72 hours after its launch, it looks as if retailers are on the receiving end of an exceptionally high demand curve.

Both phones4u and Carphone Warehouse, two of the biggest resellers in the land have run out of stock online (although you might find stock in their brick-and-mortar stores but that would be down to luck).

Both urge their customers to sign up for updates to be notified when new stock becomes available.

Apple's own online store lists a one- to two-week delay in the delivery of all six stock-keeping units, which has been the case since the iPhone 4S was launched at the beginning of the month.

There are only five major differences between the iPhone 4S and its predecessor; a new chipset, the A5, a better camera, voice assistant Siri, a better battery life and Bluetooth 4.0.

Apple is likely to prioritise orders from its own stores before allocating any stock to mobile network operators and to mobile retailers, who find themselves third in the pecking order.