When Apple presented in 2017 Apple Watch Series 3, it also launched in a Cellular version. It was the 4G LTE version, which the company's watches still have today, despite the fact that we have 5G networks here for a long time. However, in terms of connectivity, we could be in the future Apple Watch expect more news.
If you have the Cellular version Apple Watch with a cloned SIM, you can notchat iPhone at home and through the watch, they can still communicate happily - by voice and text, because thanks to 4G LTE they remain logged into the GSM network. According to Mark Gurman but he should Apple change the modem supplier and switch to 5G for your watch as well.
It specifically states that Apple plans to replace Intel modems in Cellular models Apple Watch for 5G modems from MediaTek. These should include support for 5G Redcap, a lower-level 5G service aimed at internet-connected devices and wearables that typically don't require fast data connections.
That's right Apple Watch they don't need it because they are not devices intended for console usemaceven large volumes of data. You don't surf demanding websites, stream movies, send photos, etc. on them. So the fact that Apple Watch They still only use 4G LTE, which doesn't really matter at all, considering that these networks have increasingly larger and better coverage than 5G networks.
It could be interest you

Satellite Apple Watch Ultra 3
Gourmet nonetheless mentions and interesting news Apple Watch Ultra 3. Apple first introduced satellite connectivity for non-GSM text messaging with the iPhone 14, and the company's new flagship watch could also get it next September.
Apple Watch The Ultra 2025 will be able to connect to a satellite network, just like currently supported iPhones, allowing users to send text messages via satellite when cellular or Wi-Fi is not available. When Apple first launched its satellite connection, it was limited to emergency text messages, but in the system iOS 18 the company expanded them to allow users to send text messages to anyone.
Satellite connection in Apple Watch would allow Apple to better compete with companies like Garmin, which makes specialized satellite hardware for use in emergency situations outside of regular cellular network coverage.