Versa 3 – Fitbit Watch

Fitbit Versa 3
Classic wristband (both small & large)
Charging cable
Sensors & Components

Built-in GPS + GLONASS
Red and infrared sensors for oxygen saturation (SpO2) monitoring
3-axis accelerometer
Altimeter
Wi-Fi (802.11b/g/n 2.4GHz)
Ambient light sensor
Microphones
Speaker
NFC
Vibration motor
Optical heart rate sensor
Device temperature sensor (skin temperature variation available in the Fitbit app)

https://www.fitbit.com/global/us/products/smartwatches/versa3