... months later)Functions:1) Bluetooth 4.0 and LED display2) step /calorie count 3) Sleep monitoring (similiar to fitbit)4) ... rate monitor2. Products are CE/RoHS approval3. Multi-functional, with step counter, calorie, stopwatch, etc. 4. More than 10-years Experienced ... requirements. 5. Besides heart rate watch monitor, we also have pedometer, massage waist timmer, handgrip, jump rope ,fitness kits etc6. ...