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bearscome ecg blood glucose bluetooth call smartwatch 2026 best Best Selling so you can easily followMedical grade ECG MAIN FUNCTIONS Take an ECG Anytime Anywhere Your health partner is in your hands Built in Maxim and OSRAM High end ECG SP02 HR chip, The fastest 30S to capture high precision cardiac electrical signals; 512Hz ECG sampling frequency, Acquisition of I lead ECG signal. If there is any heart discomfort, activate the emergency mode, Quickly capture and store abnormal ECG signals, view the report through the APP, and export the ECG for