Online is a better deal, anyway. I seriously doubt that this Sanford Walmart has the item you're wanting. You're going to want to get a SIM card too. Their online support ( web chat) is good at answering questions or assisting you with product selection including desired functions.
According to their website they have many to choose from under $20
I don't know if a smart watch under $20 exists...
I don't know look on line
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