Developers are working on more than 3,500 apps for the gadgets, he said. That's well ahead of the 500 apps available for the 2008 edition of the iPhone and the 1,000 for the first iPad in 2010, he added.
Apple has kept mum on initial sales for the device, considered its first truly new product since the death of co-founder Steve Jobs. It's also a key test of Cook's ability to shape the company's products.
Greater China accounted for 29 per cent of Apple's revenue in the March quarter, according to data compiled by Bloomberg.
While in China, Cook also visited schools, where he talked about the importance of education and said he was gratified to see the students had an insatiable appetite for learning.
To that end, Apple is throwing its weight behind a fledgling Chinese mobile technology learning program. It's helping orchestrate more than 180 trial programs intended to teach kids everything from how to compose music on the GarageBand app, to helping hearing-impaired children operate phones, he said in the interview.
He said he hoped to expand the number of programs by roughly 50 per cent before the end of 2015. The aim, he said, was to transform traditional educational models and help students contribute to society.
- Bloomberg