Apple Watch Series 4Cool factor 5/5Usability 5/5Value for money 4/5 Apple’s smartwatch is the slickest and most feature-laden of this new category of gadgets. The stand-out new feature of the Apple Watch Series 4 (R8,000) is a built-in electrocardiogram (ECG) monitor that reads your heart rate from the veins in your wrist. The watch’s crown is also a sensor, so you can put your fingertip on that for heart-related readings, completing a circuit through your arms across your chest. Its accelerometer and gyroscope can tell if the wearer has a fall and can alert people if you don’t move for a minute, and include your location. It’s by far the most sophisticated smartwatch I’ve tested. Like previous models, it can notify you as your phone does for calls, messages and app alerts and control your music. Personally, I find the notifications intrusive (even on my phone) and turned off most of those. The most useful feature, given that my phone is always on silent, was incoming calls – and yo...

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