Fitbit Sense
Smart Watch - with direct wrist pulse measurement, Fitbit Pay, calories burned, distance covered, sleep monitoring, floors climbed, interval training, ECG, GPS, altimeter, gyroscope,, thermometer, sensor for light intensity, connection through WiFi, Bluetooth and NFC, battery status, plays music, notifications from mobile, tracks menstrual cycle, calling Calendar, Day of the week, Stopwatch, Alarm clock, Lighting and Date, NFC payments, water resistant up to 50 m (5 ATM), Fitbit OS, compatible with Android and iOS, glass: gorilla glass, strap material: silicon, case material: stainless steel