Apple Watch models 3 through 4 have a new design with a larger, more flexible display, a bigger display, and the ability to connect to the internet through the new Lightning connector.
The Series 3 and 4 models can be ordered with new or upgraded components and the Series 5 will have a larger display.
Read More Apple Watch is available in a variety of colors and a variety number of models and models with new features.
Some models include wireless charging and the Apple Pencil, which lets users draw with their hands.
The new models include a new dual-camera system with a 5MP sensor, a 4MP sensor with optical image stabilization, and a 1.5MP sensor for selfies.
The new Series 3 models are also the first to offer Wi-Fi calling, as well as Bluetooth 4.1 for faster wireless data connections.
The iPhone 5S is the only model to support NFC payments.
Apple Watch Series 4 and 5 models will start shipping next week, but we haven’t seen a price or release date.