Apple Watch Series 4 teardown reveals the magic behind the redesigned wearable

Florence Fletcher
September 25, 2018

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 a user falls and doesn't move for a minute, the Apple Watch Series 4 automatically a loud alarm after a 15-second countdown, in a move to get help from the surroundings in addition to contacting the user's contacts listed for emergency purposes. For everyone else, Fall Detection is disabled by default. While it's said to work accurately, it is important to know that the feature is not automatically enabled unless you're 65 years of age or older. How you fall (soft versus hard) is important and, as mentioned, it may trigger false alarms. The tech giant warns in its Support document that the Apple Watch Series 4 algorithms aren't foolproof.

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. The default setting does make sense, as older people are more prone to serious falls where they will need emergency assistance.

But, if your Apple Watch detects that you're moving, it waits for you to respond to the alert and won't automatically call emergency services. Many reported that they could not trigger a fall alert on goal, but it's not clear if all of them had the feature turned on.

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If you're in the market for a smartwatch, and have a few dollars to spare, Series 4 offers more than any Apple Watch before it.

The battery capacity has been increased about 4% to 1.113 Wh (291.8 mAh at 3.81 V), up from 1.07 Whr (279 mAh at 3.82 V) in the Apple Watch 3.

The iFixit team has managed to get its hands on the Apple Watch Series 4 and posted a detailed teardown of the wearable.

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