Characteristics:

• Mpn :Does not apply
• Model :T91
• Features :Blood Oxygen Sensor, Blood Pressure Monitor, Bluetooth Enabled, Fitness Tracker, Heart Rate Monitor, Sleep Monitor, Touchscreen, Water-Resistant, Waterproof
• Case size :49 mm
• Band material :Silicone/Stainless Steel
• Case material :Aluminum
• Headsets feature :Built-in Microphone,Call functions,Noise Cancelation,In Ear
• Operating system :Android Wear
• Compatible operating system :Android, iOS - Apple