Garmin Vivosmart 4 Activity Tracker (black With Midnight Hardware Small And Medium Wrists)

Slim smart activity tracker blends fashionable design with stylish metal accents & a bright easy-to-read display
Requires initial setup through Garmin Connect(TM) or Garmin Express(TM)
Estimated Elevate(TM) wrist-based heart rate all-day stress tracking relaxation breathing timer VO2 max Body Battery(TM) energy monitor & more
Dedicated activity timers for walks runs strength training yoga pool swims & others
Advanced sleep monitoring with REM sleep & can gauge blood oxygen saturation levels during the night with the wrist-based Pulse Ox sensor (this is not a medical device & is not intended for use in the diagnosis or monitoring of any medical condition)
Ability to easily review & compare sleep stats with downloadable Garmin Connect(TM) Mobile app
Can receive vibration alerts for all notifications including calls text messages & more (text replies available for Android(TM) device users) when paired with compatible Bluetooth(R) device
Safe for swimming & showering
Up to 7 days battery life (excluding Pulse Ox sleep tracking)
Includes charging/data cable & manuals
Black with Midnight hardware
For small/medium wrists