The Cellular Apple Watch works by having something called an E-SIM – it’s part of the watch itself so you don’t have to buy a SIM card for your watch as well as your phone. The E-SIM works by transferring your phone plan onto your watch so both will use the same data, minutes and messaging allowances. For cellular support, which lets your Apple Watch optionally work untethered from your iPhone, you would've spent $499 for the 41mm size or $529 for the 45mm size. The Best Smartwatch Deals This Week*. Apple Watch Series 9 Smartwatch [GPS, 41mm] — $349.00 (List Price $399) Google Pixel Watch Wi-Fi Smartwatch (Obsidian) — $199.99 (List Price $349.99 Emergency SOS + Crash Detection: Apple Watch Series 4 and later can use a cellular connection for Emergency SOS. To use Emergency SOS on an Apple Watch without cellular, your iPhone needs to be nearby. If your iPhone isn’t nearby, your Apple Watch needs to be connected to a known Wi-Fi network and you must set up Wi-Fi Calling. Testing conducted by Apple in August 2023 using preproduction Apple Watch Series 9 (GPS) and Apple Watch Series 9 (GPS + Cellular), each paired with an iPhone; all devices tested with prerelease software, Apple Watch Magnetic Fast Charging USB-C Cable (Model A2515), and Apple 20W USB-C Power Adapter (Model A2305). 10 Things you NEED to KNOW About the Apple Cellular Watch! The real reason to buy an Apple watch is to be able to disconnect from your phone, but still be ab Amazon.com: Apple Watch SE (2nd Gen) [GPS +Cellular 44mm] Smart Watch w/Midnight Aluminum Case & Midnight Sport Band - M/L. Fitness & Sleep Tracker, Crash Detection, Heart Rate Monitor, Water Resistant : Electronics Testing conducted by Apple in August 2023 using preproduction Apple Watch Series 9 (GPS) and Apple Watch Series 9 (GPS + Cellular), each paired with an iPhone; all devices tested with prerelease software. Battery life varies by use, configuration, cellular network, signal strength and many other factors; actual results will vary. With Apple Watch with cellular and a cellular connection to the same carrier used by your iPhone, you can make calls, reply to messages, use Walkie-Talkie, stream music and podcasts, receive notifications, and more, even when you don’t have your iPhone or a Wi-Fi connection. Note: Cellular service not available in all areas or with all carriers. It is as if you’re wearing a “wearable phone” around your wrist. The best design also goes to the cellular version of the Apple Watch. The choice between stainless steel or titanium materials adds to the premium feel of this version of the Apple Watch. But the cellular Apple Watch can still be considered a fad. jKyc7.