OnePlus is a Chinese smartphone manufacturer known for its marketing strategy of relying heavily on digital platforms and influencer marketing rather than traditional advertising. The company builds loyalty through engaging content on platforms like Instagram, Twitter, Facebook, YouTube, and LinkedIn. Notable aspects of OnePlus's strategy include their initial invite-only system, hiring celebrities as ambassadors like Amitabh Bachchan and Robert Downey Jr., and partnering with influencers for product launches.