Diggro QS90 is an upgrade to the QS80, 0.96 inch screen gives you a better user experience. QS90 supports various sport mode monitor, continuous real-time heart rate monitoring and the measurement of blood pressure and blood oxygen, make you better understanding of their own health, more love and care for yourself. The bracelet not just record your exercise routine data such as distance, steps, calories burned, also automatically monitor your sleep quality during the night, help you develop a good habit. As a fitness helper, calls and message reminder, you won’t miss anything important, no doubt, QS90 will be your more intimate sports partner!