Apple WatchWhen we tried out some smart watches, we mainly used them for checking email, noting the weather and keeping track of stocks. Our friend Louise got an Apple Watch, and she uses it differently.

If she finds herself in an environment where cellphones are banned, she can discreetly use her smart watch, even to take calls. Initially Louise thought she needed to hold the watch to her ear, but it’s easy to carry on a conversation while continuing to type at a computer. A friend of Louise’s uses it to monitor her young son’s blood sugar. No need to nag her son: She sees the results of his implanted sugar monitor as often as she wishes. The Apple store gives great tutorials, tailored to your needs. That’s how our friends found out about all these functions.

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