Feifuns Smart Watch (Receive/Make Call) Fitness Tracker with Water-Resistant Heart Rate/Blood Pressure/SpO2 Pedometer Sleep Track for Women Men - China Smart Watch and Smart Band price | Made-in-China.com
feifuns Smart Watch, Fitness Tracker with Blood UK | Ubuy
GTS5 Feifuns] Yup, I bought the off-brand smartwatch of everyone's nightmares :) : r/Watches