Riversong, which is an emerging smart gadgets brand, has launched Wave O2 fitness band. The smartwatch is designed o meet the demands of fitness enthusiasts. Wave O2 fitness tracker helps users to keep a track of user's health in today's fast-paced world. Assistance is the key to maintain a balance between self-care and progress and the band adds a fun spin to that, claims the company. Wave 02 also comes with sensors to help monitor blood pressure, monitoring, heart rate monitoring and help the users to track their activities while on-the-go