It is arguably one of Apple’s smallest products, but the Apple Watch is also going to have a big impact on several industries, from health to payments and beyond. This is even more apparent with Apple Watch Series 4.

Health and fitness

Health and fitness are two of Apple’s key priorities in the new device. Not only does it provide highly accurate fitness tracking, but new features — including the built-in ECG and much-improved heart monitor — show the device’s future as a key component to overall healthcare.

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