Apple Watch Series 4 launched with new design, ECG support

Our clearest look yet at the Apple Watch Series 4

The new Apple Watch Series 4's health- and fitness-tracking features were displayed front-and-center at the company's annual product announcement in California.

Making health a big selling point of the Apple Watch, Apple said the new Apple Watch Series 4 will not only be able to screen your heart rate, but will call for help if you fall.

Apple today showed off its new Apple Watch Series 4, which sports a slimmer frame and display that's more than 30 percent larger than its predecessor. The latest smartwatch from Apple comes with a new design and larger display - one with thinner bezels compared to last year's model. Along with the release of the new watches, Apple is dropping the price of the Series 3 to $279.

Above all this, the Apple Watch Series the new dual-core 64-bit S4 processor is custom designed and the makers claim two times better performance than the previous model.

One of the completely new features being added to the Apple Watch 4 is an automatic detection if you fall. Apple Watch Series 4 starts at $399 with Global Positioning System, $499 with cellular and will be available to order from September 14 and picked up from September 21. Apple says it's moved the Series 4's microphone to the opposite side of the speaker to reduce any echo effect as well. Prices start at $399 for the non-cellular aluminum models in space gray, silver and gold, and $499 for the non-cellular stainless steel models in silver, "polished graphite" and gold. A gold stainless steel is a new finish coming to the Apple Watch Series 4.

Series 4 packs a new optical heart sensor.

The new watch faces include a slew of new complications, along with several animated faces such as Breathe, fire, and water. But this feature will only available in the United States and later this year. It will also send a notification if the watch detects an irregular beat that might be Atrial Fibrillation (AFib).

The Apple Watch Series 4 was unveiled on Wednesday. You can set it up to automatically call emergency services and contact your loved ones.

In fact, the FDA's letters to Apple classifying the watch's software as a Class II device-dated September 11 (PDF), the day before the launch event-state that the ECG app is not intended for use by people under age 22. Despite the power, it still has an 18 hour battery life.

Apple has even added new Workout related features which will automatically detect the type of workout you're doing now, so you don't have to slide your finger on the tiny display to kick off a new Workout session.

In addition, Apple said WatchOS 5, which was unveiled at the WWDC event in June, will be available on September 17. Apple even brought the American Heart Association's president and practicing cardiologist Ivor Benjamin on stage to tout the feature and its ability to evaluate your heart and find risks to possible heart issues.