Fitbit Versa 4 FB523 Black

The Advanced Versa 4,
In Wrist Skin Temperature Sensor.
Oxygen Saturation (Spo2) Monitoring.
24/7 Heart Rate Monitoring.
Sleep Stage Analysis.
High/Low Heart Rate Variation.
Menstrual Health Track.
Built-In Gps.
Water Resistant Up To 50 Meters.
Music On The Wrist.
Calls And Notifications From The Wrist.
Google/Alexa Compatible.
6+ Days Battery Life.
Model Nb: FITACCFB523BKBK