Apple is in a waiting period with the US gadget giant seeking the "next big direction" almost two years after the death of its groundbreaking boss Steve Jobs, the company's co-founder Steve Wozniak said Thursday.

Wozniak, speaking at a forum in Mexico City, insisted that Apple remains a "great company" with its "own culture" and a collection of trademarks despite its leader's death.

Wozniak, a childhood friend of Jobs who co-founded the company in the mid-1970s, countered critics who say Apple has failed to offer innovative products since the latter lost his battle with cancer in October 2011.

"I think Apple is in one of these waiting periods waiting for the next big direction," he said.

"You can't expect a whole new incredible revolution of a category of existing consumer electronics , you can't expect that every year," he added. "If you could have one every year it would be quite a surprise."

Jobs unveiled the second-generation iPad tablet in March 2011, his last presentation. Last year, the California company launched the iPad mini and the iPhone 5.

Apple has filed a trademark application in Japan for a product named "iWatch" and reports say similar paperwork was filed in other countries, including Mexico and Taiwan, fueling speculation that it is preparing to introduce a device that can be worn around the wrist.

Wozniak appeared to hint as much, telling the Mexico City audience that devices are getting smaller.

"I think, oh my gosh, I just wish I had the old iPhone right here on my wrist and I wish I could ask it questions like a new Siri (voice assistant technology) or tell it to play certain music," the 62-year-old said.