If the wearer is immobile for more than 1 minute, it will make the call automatically and send a message with your location to your emergency contacts. One of the most talked about however is its Fall Detection capability, which Apple claims will detect falls and allow the user to contact emergency services if needed.
When "significant, hard fall" is detecting while you're wearing your Apple Watch, you get a tap on the wrist, an alarm sounds, and an alert is displayed.
The Tim Cook-led company launched the Apple Watch Series 4, alongside the iPhone XS, iPhone XS Max and iPhone XR on September 12.
In addition to this, several YouTube channels over the weekend posted videos testing the Fall Detector and how hard a fall has to be to trigger it. If you're under 65, fall detection is disabled by default.
That said, so far many people have reported the Apple Watch 4 to be capable of identifying real falls from pretend ones.
However, if for some reason you can not respond to your Apple Watch, and you're immobile for about a minute, it will begin a 15-second countdown while vibrating and sounding a progressively louder alarm.
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As noted in the online manual for the Apple Watch Series 4, fall detection is only automatically enabled if a user has entered their age during the setup process for the smartwatch or have populated that information in the Health App.
The Apple Watch Series 4 is a massive upgrade to the wearable device for both hardware and software, especially when it comes to health and fitness features.
The new S4 processor which drives the whole Watch now pops out easily; Apple's practice has historically been to glue down many of its processors.
If you want to get technical, means this year's bigger model manages 977 sq mm of surface area compared to 740 sq mm in the Apple Watch 3.
Apple does state, however, that "Apple Watch can not detect all falls".
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Carson finished with 102 yards, the first Seattle running back to top 100 yards since late in the 2016 season. The defense had another solid performance, holding Dallas to one touchdown and picking off a pair of passes.