Apple has been secretly building home robots that could end up as a new product line, report says

• Apple is exploring home robots in an effort to create its next major product, Bloomberg reported. 
• It's working on a mobile robot that can follow users and a smart display one, per the report.
• The exploration of these devices comes after Apple killed its self-driving car project. 

Apple is in the early stages of looking into making home robots, a move that appears to be an effort to create its "next big thing" after it killed its self-driving car project earlier this year, sources familiar with the matter told Bloomberg.