According to reports, Apple’s next-generation iPhone will have a screen that measures at least 4-inches as it looks to compete with rival flagship phones.

Apple has been rumoured to be considering increasing its display size since the iPhone 4S arrived with a conservative 3.5-inches, the same dimensions as all previous models.

However, the Wall Street Journal is reporting that the manufacturer has already begun ordering larger screens from its Asian suppliers.

The exact size of these displays is unknown but are said to be “at least 4 inches diagonally”.

With the likes of the Samsung Galaxy S III (4.8-inch), HTC One X (4.7-inches) and the LG Optimus 4X HD (4.7-inches) all sporting larger displays than the iPhone 4S, Apple looks set to rethink its approach.

It’s not just the iPhone’s dimensions that Apple’s said to be examining. Speculation that we could be seeing a 7-inch iPad this October is gathering momentum as the Cupertino company looks to monopolise the tablet market.

Would you like the next iPhone to have a bigger screen? How big?