Activity Monitors features: Chronus Smartwatch Heart Rate Monitor Waterproof Touch Screen Sport Watch Smart Bracelet Pedometer Calories(Orange) Color: we send based on the color or size of the main image of the product page. Quantity：we send based on quantity on title, if there is no quantity in the title, we send based on description. (Multifunctional Smartwatch) Heart rate / blood oxygen / sleep / calorie monitor, pedometer, message notification, phone reminder, breathing training, music control, weather forecast, control camera, stopwatch, alarm clock, 10 sports modes, adjustable brightness, can personalize the watch face with family photos or landscape photos on your phone. (Heart Rate & Sleep Monitor) The smart watch monitors your heart rate / blood oxygen in real time, allowing you to better understand your health. The watch will automatically detect your sleep at night and analyze your sleep quality through deep sleep, light sleep and degree of wakefulness. Accurate and efficient data monitor will bring health and happiness to you and your loved ones. (Vibration notification) Connect the smart watch to your mobile APP via bluetooth to receive notifications by phone / SMS / SNS (QQ / Skype / Facebook / Twitter / Line / WhatsApp, etc.). If your phone receives a call, SMS text messages and SNS, it will vibrate to alert you, so you will never miss a call or message. In addition, you can browse the content of the SMS directly on the watch, as well as the name and number of the caller. (10 Sport & Shared GPS Modes) The smart watch can automatically track your steps, distance traveled and calories burned. Manually start tracking a specific activity (running, cycling, skipping rope, yoga, etc.) then set a goal and track your stats in real time, you can see speed, distance, calories and route maps during training, such as running or cycling. (Compatible with Android / iOS) This connected watch is compatible with Android and iOS phones. Download and install the free "YFit" app by scanning the QR code in the manual or searching the App Store. Compatible systems: IOS 9.0 or above, Android 5.0 or above. (not for iPad / PC devices). This smart watch will be a perfect choice when you need to buy gifts for family, friends, partners or children.