Sensors & Components-3-axis accelerometer, 3-axis gyroscope,Optical heart rate monitor,Altimeter,Ambient light sensor,SpO2 sensor,Vibration motor,Wi-Fi antenna (802.11 b/g/n), NFC
Battery and Power-Fitbit Versa has a battery life of 4+ days. Battery life and charge cycles vary with use, settings, and other factors; actual results will vary. We recommend charging your watch every few days to ensure you are always tracking.Battery type-Lithium-polymer,Charge time-(0-100%): Two hours,Radio transceiver-Bluetooth 4.0
Memory-Saves 7 days of detailed motion data – minute by minute,Saves daily totals for the last 30 days,Stores heart rate data at one-second intervals during exercise tracking and at five-second intervals all other times
Water Resistance-Fitbit Versa is water resistant to 50 metres. After swimming or getting the band wet, we recommend drying the band because, as with any wearable device, it's best for your skin if the band is clean and dry. We do not recommend wearing Versa in a hot tub or sauna
Warranty- 1 year manufacturer warranty. Customer care email- firstname.lastname@example.org.