AMAZFIT Bip Lite SmartwatchMain Features:-45-day battery lifeUsage scenario: factory default dial, running once a week for half an hour, 100 notifications per day; screen brightness 10pct.-3 ATM water-resistantDesigned to withstand all your activities rain or shine, this watch is 3 ATM certified, equivalent to about 30 meters water depth.-Light weightComfortable to wear day and night. You will even forget it is there on your wrist.-All-day heart ratePPG optical heart rate sensor. Automatic heart rate monitoring and continuous heart rate tracking during workouts.-Sleep trackingMonitor your sleep and gives you an analysis of your sleep patterns.-Activity and sports trackingTrack daily activities and sports like indoor and outdoor running, walking and cycling.-Reflective color displayThe display is always on and easily readable under bright sunlight.-Processor: ST SMT32L476 + Dialog DA14580-RAM: 128KB-Flash Memory: 8MBClick here for more Smartwatches..