Designed with heart. The most accurate heart rate detection ever on a wearable device. The best way to keep an eye on your health. Apple Watch Series 12 is a powerful health and fitness monitoring device. The most accurate heart rate detection ever on a wearable device helps you better understand your body, with features like high-frequency HRV monitoring that provides useful insights into your stress level, recovery ability, and sleep quality. Stay motivated with the readiness score, advanced workout metrics, and features like Defined Pace, Heart Rate Zones, and more. Key features – TAKE YOUR HEALTH TO HEART – The most accurate heart rate detection ever on a wearable device: Series 12 measures HRV variability every five minutes, providing useful insights into your stress and recovery levels. Additionally, it detects your heartbeat in the background every five seconds. – MANY FEATURES TO TRACK YOUR HEALTH – In-depth health information helps you better understand your body. Check the values recorded overnight by the Vital Signs app, get an assessment of your sleep quality, and measure your blood oxygen levels. – YOUR READINESS SCORE – Find out if it’s time to rest or push yourself: based on your recent activity, vital signs, and sleep data, the Readiness feature gives you a clear score and helps you understand how much energy you’ll have for the day. – A POWERFUL FITNESS TRACKER – It has advanced metrics and features to keep you motivated, such as Defined Pace, Heart Rate Zones, and more. With many different workouts to choose from, including running, hiking, and strength training, Apple Watch Series 12 helps you stay fit. – HELP AT YOUR FINGERTIPS – Your smartwatch prioritizes your safety. If you experience a bad fall or a serious car accident, Series 12 can detect it, help you automatically call for assistance, and notify your emergency contacts. – A BATTERY THAT LASTS ALL DAY – With a battery life of up to 24 hours under normal use, you have even more time to do what you want. Just 15 minutes of fast charging provides up to 12 hours of normal use. – BUILT TO LAST – Now the aluminum case of Apple Watch Series 12 features Ceramic Shield 2, tougher than any smartwatch glass. The titanium and ceramic cases have an ultra-durable sapphire crystal display. – ALWAYS CONNECTED – Together with your iPhone or under Wi-Fi, Series 12 (GPS) keeps you connected to the world. Use your smartwatch to send messages, answer calls, listen to music, use Siri, and receive notifications.