Apple Watch Cellular Icon. The cellular icon turns the Apple Watch cellular connection on or off. It is only available on Apple Watch models with cellular. Enabling cellular functions allows you to make and receive calls and texts when don't have your iPhone near you and can't access Wi-Fi.
There's International Roaming available on the cellular models too, as there is with the Series 8, but the Watch SE misses out on the body temperature sensor and SpO2 sensor. The Apple Watch Apple Watch Series 5 (GPS + Cellular) 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.4. Apple Watch SE (GPS + Cellular) 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.