Product images are for reference only. Some colors may not be available in certain markets. Intense colors, high resolution, and comfortable fit make the Amoled display a head-turner. Because Oppo knows you'll always want to wear your Oppo Band, they've covered the display with a curved, scratch-resistant 2.5D glass coating. The SpO2 sensor tracks fluctuations in blood oxygen levels. Continuous SpO21 can be monitored while you sleep, giving you sleep duration and sleep phase records as well. With better sleep, you wake up rested and ready to take on the day.