We can definitely understand wanting to know all of your options when attempting to purchase a new line. We have the information that you need that will help with your decisions making. When it comes to the 5GB plan, it is a single line plan that can only be connected to one smartphone. Even though you can only have 1 smartphone attached, you can however add 2 additional nontalk devices to this particular plan as well. A non-talk device would include items like a tablet, Jetpack™, Home Phone Connect, or connected device like Hum for a maximum of 3 lines total. I certainly hope this information was helpful.
That is a good question, melissa8100. You can add the smartwatch to your account on that plan also. The monthly line access charge for the watch would be $5.00 per month. Does this help answer your question?