Some say discretion is the better part of valor, which means the discreet yet useful Apple Watch Series 4 may be the bravest thing of all.

Apple's brave little watch

What is the nature of a wristwatch?

For most of us, it’s something we wear and look at when we need the time. A smartwatch adds an indefinable number of additional features, and at their best, these don’t get in our way and are there only when we need them to be.

[ Read also: 8 industries Apple Watch Series 4 disrupts ]

That’s certainly the message when it comes to one of the flagship features of the watch, Siri.

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