Monitoring every element of your fitness-fueled lifestyle, the Polar A360 Fitness Tracker is a smart fitness watch with a sleek, elegant-looking design. The A360's wrist-based heart rate monitor ditches bulky chest monitors and measures your heart rate with flashing LEDs along the underside of the watch, so you're able to exercise at optimal intensity to make the most of every workout.  
 
Movement-based metrics provide speed and distance stats when you're walking and running, regardless if you're on the treadmill indoors or jogging through the neighborhood. 24/7 activity tracking counts steps and automatically monitors sleep time and quality. Used with Polar's Flow app, the watch's 24/7 activity tracking supports your daily fitness goals and commitment to better sleep. The Smart Calories function provides an estimate of calories burned, based off your physiological data (weight, height, age, and gender) and is crunched alongside daily activity and heart rate stats.
 
Plus, its waterproof design won't succumb to soaking rains or submersion, so it won't be game over when you get caught out in the rain on your run. Keeping up to date with tech-savvy trends, the A360 connects via Bluetooth with your smartphone, delivering text message updates, incoming calls, and social media notifications directly to your wrist. Smart notifications are incredibly useful for exercising without being tethered directly to your phone. The A360 is compatible with iPhones running iOS7 or later and Android 4. 3 or later smartphones. The included Micro USB cord charges and syncs the A360's data when it's connected to a Mac (OS X10. 6 or later) or PC (Windows XP, 7, 8, or 10).