About this item [Military Smartwatch with Bluetooth Call]: Stay connected without the hassle of carrying a phone with this smartwatch that allows you to make and answer calls via Bluetooth. [Waterproof Smart Sport Watches for Outdoor Activities]: Whether you're hiking, kayaking or doing any outdoor activity, this rugged smartwatch is designed to withstand any extreme condition with its 10ATM water-resistance rating. [Rugged Military Standards Quality]: Built to meet military standards, this smartwatch has a tough exterior that can withstand any harsh environment. [Compatibility with iPhone and Android]: Connect with your smartphone to receive notifications, messages and to track your fitness activities on the go with the Smart Sport Watches. [HR/BP/SPO2/Sleep Monitoring]: Monitor your heart rate, blood pressure, blood oxygen levels, and track your sleep to keep a check on your health and fitness.