It's running on a new Apple S4 processor that's a 64-bit dual-core option, but exactly what that new tech will allow is unclear. Apple says it'll be able to perform twice as fast at everyday tasks.

With a new accelerometer and gyroscope the company says it can now use the watch to detect when you fall too. That means it'll be able to track when you've fallen and even ring give you an option to ring emergency services directly from your wrist.

If you've not moved for over a minute, it'll even ring the emergency services itself. This could be a particularly useful feature for the elderly.

You'll be able to buy a cellular version of each watch, and if you don't want that you can opt for the watch that works with just a Bluetooth 5 connection. It'll also come running watchOS 5 software straight out of the box, so you'll get all of those software upgrades too.

Apple Watch 4 fitness



Fitness upgrades are limited on the Watch 4, but there is one notable change that will be huge for some users.

There's now an electrocardiogram feature on the Apple Watch. That's a test you'll likely know as an ECG, and this means you can take a test anywhere you are. You'll hold the button on the crown to start the test, wait 30 seconds and then you'll be served a "heart rhythm classification".

It'll let you know if your heart is beating in a normal pattern or whether it has found symptoms of Atrial Fibrilliation. That's a dangerous heart condition that can lead to other health problems, and it'll let you know whether to visit your doctor or not.

Your test will be logged on the watch and the phone, so you'll be able to spot all of your results within the app.


Apple reckons this is vital information for your doctor if you have heart problems too. You can seamlessly test your heart's results throughout the day and have a much bigger set of results for when you next visit your doctor.

This isn't a feature for everyone, but for some users it's a gamechanging upgrade that will make it a must-have smartwatch.

The feature even has FDA clearance in the US. It doesn't sound like it'll be available immediately at launch. It should come to the watch later this year.

It'll also be able to track your low heart rate in some situations and give you a notification so you'll know if something is wrong. It can also screen your heart rhythm in the background and it'll notify you of irregular heart rates that may be able to identify a atrial fibrillation.

All of the other health features from previous Apple Watch devices make a return here so you'll have a heart rate tracker, GPS, swim tracking and much more.

Apple Watch 4 battery life



Apple claims the product will have a similar battery to the last generation watch. That'll likely mean it lasts for a whole day from a single charge, but the company claims it'll improve for your outdoor workouts.

On stage the company claimed it'll have six hours of battery life when you're using GPS to track your outdoor workouts.