Hw21 smart watch 42mm size ip67 waterproof bluetooth sleep monitor fitness heart rate screen size 1.32 inch

Title hw21 smartwatch 42mm size ip67 waterproof bluetooth sleep monitor fitness heart rate screen size 1 32 inch description hw21 smartwatch 42mm size ip67 waterproof bluetooth sleep monitor fitness heart rate screen size 1 32 inch detail main features lightweight and fashionable full metal design full circle hd touch screen rotating dial operation smooth operation without lags rich and exquisite dial backgrounds selection customize watch face 24h bio heart rate tracker always pay attention to heart health 12 professional sports modes making sports safer and more efficient scientifically monitor sleep and record the complete sleeping status exclusive mibro fit app for real time synchronization of health data daily activity tracking convenient life assistant ip68 dustproof and waterproof more assured for daily use product specifications name hw21 smart watch model hw21 body dimension diameter 42mm thickness 9 2mm band dimension width 20mm unfolded length 248mm weight 40g including band