Key Features . Aluminium CaseTrack your steps monitor your heart rate and more!Car crash detectionwatchOS 9Built-in GPS to track activity and share your location!Compatible with iOS SmartphonesWater resistant to 50 metres . Smooth and seamless. The edge of design.Apple Watch Series 8 features a big brilliant Always-On display. Narrow borders push the screen right to the edge resulting in an elegant integration with the curvature of the case. Always-On Retina display. Take it all in. Get it all done.The bright Always-On screen makes detailed watch faces look stunning and easy to read even when your wrist is down. The larger display accommodates all your favourite complications and makes tapping typing and swiping a snap. Tougher than tough.The same innovations used to create the beautiful edge-to-edge Always-On display also help make it incredibly durable. A thick front crystal robust geometry and a flat base make it resistant to cracking. The Series 8 is swimproof with WR50 water resistance. Understand your cycle like never before.Apple Watch Series 8 has an innovative new sensor that tracks your temperature while you sleep so you can see changes over time. Cycle Tracking uses this data to provide a retrospective estimate of when you likely ovulated. When combined with your heart rate and logged cycle data you’ll get a detailed view of your menstrual cycle. Period predictions. Less of a question mark.Get improved period predictions with wrist temperature data. And now you can receive notifications if your logged menstrual data shows a possible cycle deviation like irregular or prolonged periods. Your Cycle Tracking data stays on your device and is encrypted when your phone is locked with a passcode Touch ID or Face ID. Dream machine.The Sleep app doesn’t just keep track of your time asleep. It shows you how much time you spent in REM Core or Deep sleep as well as when you might have woken up. Take an ECG at any time.With the ECG app Apple Watch Series 8 is capable of generating an ECG similar to a single-lead electrocardiogram. Measure your blood oxygen. It’s a breathtaking innovation The remarkable sensor and app in Apple Watch Series 8 allow you to take on-demand readings of your blood oxygen as well as background readings day and night. Makes taking your meds and vitamins run like clockwork.The Medications app helps you discreetly and conveniently keep track of your medications vitamins and supplements. And lets you easily log them from Apple Watch. Introducing Crash Detection. Help on automatic.For the first time Apple Watch Series 8 is able to detect if you’re in a severe car crash. When a crash is detected Crash Detection can automatically connect you with emergency services provide dispatchers with your location and notify your emergency contacts.2 Crash Detection is an Apple Watch first using the combined power of an improved 3-axis gyroscope with high dynamic range and a new high g-force accelerometer microphone barometer GPS and an advanced sensor-fusion algorithm trained on over 1 million hours of real-world crash data. New ways to train. For your personal best.Squat spin stride you name it — Apple Watch has a workout for it in the enhanced Workout app. And with new Workout Views you’ll be able to see more advanced metrics at a glance like Heart Rate Zones and customised intervals to keep you going strong. Heart Rate Zones.Quickly get a sense of your intensity level. Training zones are automatically calculated and personalised using your health data or you can create them manually..