3 Right Side Hole
You may also notice that, compared to past generations, there are a couple of holes missing from the left side of the new wearable.
That’s because Apple has nixed the two microphone holes on the left side of the device. In their place, there’s a single microphone on the right side — in between the Side button and the Digital Crown.
This has allowed the Watch’s speakers to be louder and pump out more volume. Not only that, reviewers report that the new microphone features better audio and call quality — thanks in part to upgraded hardware, but also to the new placement.