Denver SW-173 Bluetooth Smart Watch with heartrate sensor and blood pressure indicator* & also blood oxygen level Features: Chipset: Realtek 8762 1.28" full touch display, plus physical button on the side Track your sport performance, monitor your daily activity and sleep Multi-sport mode: Walking, running, cycling, hiking & more IP67 dust & waterproof Displays SMS, calls, e-mails, calender events and more Smart wake-up: raise or shake your arm to wake up the device Fully compatible with iOS8 or above and Android 4.4. or above Built-in rechargeable battery - 180mAh Battery use time: 5-7 days. Standby: up to 15 days Specifications: Smartwatch, Bluetooth, heartrate sensor, blood pressure & blood oxygen, tracks your steps & sleep, shows caller ID and SMS notification Power USB charger included Battery Built-in rechargeable battery - 180mAh