OPPO has been busy teasing some new upcoming products on social media, including the OPPO Smart Band wearable and OPPO Enco W51 wireless earbuds. Specific details about the two products are currently scarce, but it is believed OPPO will launch the Smart Band and Enco W51 earbuds in June.
https://www.notebookcheck.net/OPPO-Smart-Band-and-OPPO-Enco-W51-wireless-earbuds-teased-ahead-of-expected-June-launch.466459.0.html