A smartwatch needs a SIM card in order to use cellular connectivity to make phone calls, send text messages and receive notifications without connecting to a smartphone. Some watch users find it useless, while others think that is convenient for their life.
Basically, if you want to use your smartwatch as a standalone device then it must have a SIM card facility. Modern smartwatches do not have a physical SIM. Instead, it comes with an eSIM or virtual SIM, that connects to the cellular network when it is activated by your operator.
In fact, most mainstream smartwatches (such as Apple Watch) do not require a cellular connection and therefore do not require a SIM card. Instead, they use Bluetooth to extract content from nearby paired phones and use their cellular connection instead of the connection built into the smartwatch itself.
Having s smart watch can be useful when you don’t really have to pull out a phone every time comes a message
Cellular smartwatches mostly come with eSIM compatibility that allows you to share your phone number with the smartwatch by syncing it to your phone. So you don’t have to put a physical SIM card on your smartwatch. With this technology, you can leave your phone at home and makes calls, send messages, and receive emails and notifications right on your wrist. And besides all of this, a smartwatch with a SIM card slot will definitely have poor water resistance.
Smart watch has became many people’s must have item
Actually, a smartwatch with a SIM card function will cost a lot more battery. When making a call through a smartwatch with a SIM card, it drains the battery faster. And what’s more, users need to pay monthly charges for cellular connectivity.
As a final note, most people do not need a standalone smartwatch as everyone carries their smartphone. In addition to that, it also costs you more money.