Dynamic health tracking uses an accelerometer, gyroscope, heart-rate monitor, and SpO2 sensor to monitor your steps, distance, running, elevation, calories burned, heart rate, and more Bluetooth 5.0 technology pairs with your Android or iOS smartphone so you have access to important notifications, right from your wrist Extended battery life delivers up to 14 days of continuous use and recharges fully in just 60 minutes 1.69-inch full-colour display boasts a 240 x 280 resolution so it’s crisp, clear, and easy to read 23 sport modes support your active lifestyle by helping you to establish routines and push yourself further Zinc-alloy case and a silicone strap offer lasting durability under your toughest workouts