Apple Watch Series 4 teardown reveals big changes on the inside

Yolanda Curtis
September 24, 2018

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. Namely, at least four percent more battery footprint than the Apple Watch Series 3, or 1.12 Wh (291.8 mAh at 3.81 V) capacity in total. If you do nothing, your Watch will automatically call the emergency services - and notify your emergency contact. Redditor No1ARSoul, however, noted that you'll only find that out if you read the online manual for Fall Detection and how it's enabled by default for anyone whose age is 65 or older in their Apple accounts.

After detecting a fall, the watch gives users the option of either confirming that they are ok, they did not fall, or make an emergency SOS call. If you are immobile for a minute, it will launch a 15-second countdown before automatically calling 911 and messaging your emergency contacts. Anyway, the test shows that the device doesn't always detect hard falls accurately.

The iPhone maker is positioning the Apple Watch Series 4 as your go-to fitness tracking device.

According to Apple's support page for the Watch Series 4, the Fall Detection feature will be automatically be switched on for users who set up an account on the Watch or the Health app by listing their age as 65 years or older. But on harder surfaces it worked fine. It has a built-in Electrocardiogram (ECG) that can detect if your heart is beating normally or you have symptoms of Atrial Fibrillation (AFib).

It's also got a new 64-bit chipset, and it's a lot faster than its predecessors. You can tell Apple Watch you fell but you're okay, or you can tell it you didn't fall at all. However, its battery life remains similar to Series 3. If you can't afford it, the tech giant has slashed the prices of Apple Watch Series 3 to just $279.

Apple Watch Series 4 is available in retail stores and through Apple's website.

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