Cramer's stance aligns with Bloomberg's report that Apple is entering a major new category with a smart-home product announcement anticipated on Oct. 13, distinct from the iPhone Duo discussion.

Apple's stock moved higher in regular trading and after hours following Cramer's comments, with shares reaching $334.25 in after-hours trading.

The iPhone Duo is priced at $1,999 and will go on sale in the United States on Oct. 23, with pre-orders starting Oct. 16.

Jim Cramer urged investors to buy Apple stock, emphasizing the iPhone Duo over smart-home buzz and calling the Duo 'AMAZING.'

Apple's upcoming smart-home push, code-named project J490, is expected to include a roughly 6-inch square display, voice recognition for personalized responses, and updates to HomePod mini and Apple TV with an enhanced Siri AI.