Apple has unveiled its latest watch, which happens to have cellular built-in: wireless LTE connectivity is provided by a built-in chip that allows the Watch Series 3 to stay connected even when it’s not tethered to an iPhone. The non-LTE version starts at $329, but the cellular version will run you $399. (The Keynote is happening right now for those of you who want to check out the livestream, although you’ll have to use Edge.) The Apple Watch Series 3 will support Apple Music independent of the iPhone, allowing users to “stream 40 million songs from their wrist.” The cellular Apple Watch also has the same cellular number as your iPhone and third-party In addition to cellular, there’s a new dual-are processor with up to 70 percent faster performance. Siri, thanks to the processor, Siri can also talk – a notable upgrade. There’s also a new W2 Apple chip that is 50 percent more power efficient for Bluetooth and WiFi. As for the SIM technology, the cellular Apple Watch Series 3 uses an electronic SIM to preserve space.