Indigi Stylish Bluetooth SmartWatch Phone Built-in Heart Rate Sensor Siri For All iPhone 6s iPhone 6s plus iPhone 5 etc. MTK2502 chip + Double Bluetooth 4.0 / 3.0 mode: Compatible with both iOS and Android phones, functions are more powerful. Synchronize outgoing and incoming call  Indigi H365 Smart watch can synchronize incoming and outgoing calls from smart phone, you will not miss any important call at any time. Heart Rate monitor  Indigi H365 equipped with Built-in heart rate sensor which can read your heart rate from your wrist. | Pedometer  Turn on pedometer to control and monitoring your sport motion, Including walking distance, step counters and calories. SIRI  Indigi H365 has SIRI voice control function, talk to the watch, and your phone will do what you said such as check weather, make call to, send SMS to. (Note: this function only support iPhone.) Light up screen when you hand up  Unlike other smartwatch, when you need watch the time, no need press the button, only raise your hand, the watch screen will automatically light up. Convenient and user-friendly.