Blood-oxygen Level Measurement-When feeling unwell, under mental stress, or engaged in intensive workouts such as marathons and gym sessions, you can immediately measure your blood-oxygen saturation and understand your physical state. 60+ Sports Modes The Amazfit Bip U pro has 60+ exercise modes. These are Outdoor running, Treadmill, Walking, Outdoor cycling, Indoor cycling, Yoga, Cricket, Baseball, Basketball, Table tennis, Badminton, Free training, Fishing, Pool swimming, etc High-precision GPS Equipped with GPS and GLONASS positioning systems, the Bip U Pro delivers more precise location tracking for you to review after outdoor sports like running or cycling