Fitbit FB421GLWTSBNDLS Charge 5 Advanced Fitness & Health Tracker W/Built-in GPS, Lunar White

Built-in GPS + GLONASS for accurate tracking 3-axis accelerometer for movement detection Red and infrared sensors for SpO2 monitoring Device temperature sensor for health insights Water resistant to 50 meters for swimming Battery life of up to 7 days for extended useYou may also like Fitbit Charge 5 Advanced Health Tracker Unisex Steel Blue Fitness Tracker, 1.04".