Meet the OPPO Band 2: a smart wearable device with heart rate and blood oxygen monitoring that supports over 100 workout modes. It has a 1.57-inch AMOLED display with Bluetooth 5.0 connectivity. It has a 6-axis motion sensor too. This gadget has 4 auto tracking workout modes (walking, running, elliptical machine, and rowing machine).
This smartwatch provides you with a warning if your heart rate is too high. It also has a sleep tracker. The OPPO Band 2 lasts up to 14 days on battery. It works with iOS and Android devices.