Cellular connectivity is available through "3" in Denmark and Sweden, while in India, Reliance Jio and Airtel will be offering support for the LTE Apple Watch. Neither Reliance Jio nor Airtel will charge Indian customers an additional monthly fee for an Apple Watch, with the device able to use the same number, data, and minutes from an existing prepaid cellular plan.
In Taiwan, carriers offering support for the Apple Watch Series 3 include APT3, Chunghwa Telecom3, FarEasTone3, and Taiwan Mobile.
The Apple Watch Series 3 models with LTE connectivity first launched in September of 2017, but availability was initially limited to a handful of countries. As of now, the cellular Apple Watch can be purchased in United States, Australia, Canada, China, France, Germany, Japan, Puerto Rico, Switzerland, Singapore, Hong Kong, the UK, Denmark, Sweden, India, and Taiwan.