Can I leave my phone at home and use a smart watch?
If your smartwatch has cellular connectivity and is capable of making and receiving phone calls and texts, then you can leave your phone at home and still use your smartwatch to stay connected. Do I need a data plan for smartwatches? Yes. Smartwatches make life easier, giving you the features of a cellphone all from the convenience of your wrist. To utilize all the capabilities of a smartphone, such as making calls, sending texts, location tracting, etc.