The Apple Watch Series 4 has all of the updates you would expect. Smarter, slicker, faster — it’s undoubtedly impressive. From the satisfyingly mechanical wheel mechanism to a display that’s 30 percent larger (while being slimmer) it’s undoubtedly an upgrade. But it’s the company’s commitment to health and fitness, as evidenced through the watch, that seriously sets it apart. As the Guardian explains:

“The smartwatches now feature an electrocardiogram (ECG) sensor which can measure not only the heart’s rate but its rhythm. Such a sensor can detect heart rhythm disorders such as atrial fibrillation, a common cause of strokes. The watches, which have been endorsed by the American Heart Association and have clearance from the FDA, still have the original optical sensors, which flash pulsed light through the skin to detect heart rate. The device has also been fitted with an improved accelerometer and gyroscope that can detect if someone has fallen over, a feature that could be useful for older people. If a fall is detected and the person remains immobile for more than a minute, the device automatically calls their emergency contact.”

Although the fall feature may sound gimmicky, it’s easy to see how it could genuinely prove as a lifeline to some vulnerable people. To understand why this watch is so special, you can see the whole introduction video here:

If you’re looking for a smartwatch, you don’t have to wait long. The new watch is available for pre-order today — including an option with cellular connectivity, starting at $499, or with GPS, starting at $399.