Cupertino, California - Apple unveiled its new iPhone lineup on Tuesday, with its Lightning charger ports replaced on the newest models by a universal charger after a tussle with the European Union.

The European bloc is insisting that all phones and other small devices must be compatible with the USB-C charging cables from the end of next year, a move it says will reduce waste and save money for consumers.

The firm had long argued that its cable was more secure than USB-C chargers, which are already deployed by Apple on other devices and widely used by rivals, including the world's biggest smartphone maker, Samsung.

"USB-C has become a universally accepted standard. So we're bringing USB-C to iPhone 15," said Kaiann Drance, Apple's vice president of iPhone marketing at a launch event.

The release comes as Apple faces declining sales of iPhones, with higher prices pushing customers to delay switching to newer models.

The firm is also caught up in diplomatic turbulence between the US and China, with reports saying the communist government is banning civil servants from using its phones.

Like any other company, Apple would prefer to boast about shiny new features rather than new charging ports. But analysts agree that the switch to USB-C was going to be the main headline.

EU policymakers said the rule would simplify the lives of Europeans and do away with a mountain of obsolete chargers.

"The cable change may give consumers pause, but within a generation they will get over it: They won't have a choice," said Techsponential analyst Avi Greengart.

Along with rolling improvements to iPhone cameras and chips, Apple also said that the iPhone 15, which includes four varieties, would have internal components that simplify repair and a new frame that allows the back glass to be easily replaced.

The openness to repair is an unexpected turnaround.

Apple last month said it was endorsing passage of a California law requiring major gadget makers to enable people to fix their devices without taking them back to companies.

Apple also unveiled new models of the Apple Watch that would respond to a tap of the index finger and thumb to start and stop calls or other key functions.