The rumor mill is currently stating that the Apple Watch Series 3 will have a new form factor.
Bloomberg’s Mark Gurman has stated that Apple is likely to add LTE cellular support to the next-gen wearable and that this feature will be found in “at least some” models:
Apple Inc. is planning to release a version of its smartwatch later this year that can connect directly to cellular networks, a move designed to reduce the device’s reliance on the iPhone, people familiar with the matter said.