M6s smart heart rate bracelet sleep monitor waterproof bluetooth pedometer ios android mileage tracking
Languagessimplified chinese english romother capacity mah70 materialsilica gel sim card typeno sim card slot connectivitybluetooth40 fitness wellnesssleep tracker activity tracker alarm clock ramother typesmart bracelet featurestouch screen sports exercise record distance tracking pedometers calories burned heart rate monitor anti lost message control information modelm6s sensorfinger sensor heart rate sensor light sensor supported operation systemandroid ios screen