Apple is also working on a cheaper iPhone model that could win it some market share in developing countries, the paper says. It cited unnamed people "familiar with the device's production."
The report is in line with the expectations of company watchers and Wall Street analysts. The iPhone 5 costs around $600, and while Apple maintains older iPhones in production, even those aren't cheap enough to compete effectively against low-end smartphones running Google Inc.'s Android software.
Apple doesn't comment on future products before its launch events.