These are the biggest reveals from Apple's product launch

Apple held its annual product launch Wednesday at its headquarters in Cupertino, California. The company announced improvements to its HomePod speaker system, new video partners for AppleTV, and a coming redesign for Mac OS. Notably missing from the event was any news on wireless charging; Apple announced an AirPower charging mat at its product launch last year but has yet to roll out the product.

But the biggest news of the day was Apple's unveiling of a new Apple Watch, as well as three new iPhones. Here's all you need to know. Kathryn Krawczyk

Apple Watch Series 4: The Series 4 watch has a larger screen that bleeds over the edge of the watch face. Its speaker is louder, its microphone will provide clearer calls, and it features a faster processor. Series 4 improves Apple Watch's health tracking capabilities, too, and can notably track when a wearer has fallen and contact emergency services. Heart monitors can alert a wearer if their heart rate is too slow, and the watch can take an electrocardiogram test to detect heart issues — all with FDA approval.

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iPhone XS and XS Max: The iPhone XS has a stronger glass screen that's more waterproof than ever. Its 5.8-inch edge-to-edge display is bigger than a Plus-size iPhone's, but the device itself is smaller. There's also an iPhone XS Max, with a 6.5-inch display. Both phones feature more accurate FaceID, increased gaming power on a faster processor and higher-definition screen, and better photo quality with a dual lens system. For those who want the capabilities of two phones in the convenience of one, iPhone XS can support two SIM cards for two separate phone numbers. XS starts at $999 and the Max starts at $1,099, and they'll ship starting on Sept. 21.

iPhone XR: This lower-grade iPhone is made of aluminum and comes in six colors. It shares the XS camera system and has a 6.1-inch display, but starts at $749. It'll ship starting Oct. 26.