A:Answer There are 2 versions of this phone. One just with Bluetooth for $329.00 and one with cellular for $379.00...You have to know which one you want when you buy it. the lesser expensive one has blue tooth only. This means that you must have your cell phone nearby for the watch to accept calls and texts, etc. This model will never be able to be cellular on it's own. So you have to make up your mind if you want blue tooth or cellular upon purchasing. The $379.00 model must be purchased along with a cellular plan from Verizon, T Mobile, etc. The price per month will be depended upon purchase. It will have its own phone number and will be independent from your existing device. It will be just like a cell phone on your wrist. Unfortunately the discounted carriers like Straight Talk, etc. do not have the capability to host the watch. You must do a plan from a regular carrier, eg. Verizon, etc. So decide before you buy either one as to what you want out of this device. There is no turning back if you buy the lesser expensive one, as you will never make it independent of your current cellphone. I have decided to wait until the discounted carriers like Straight Talk can incorporate it into their monthly cards that we buy.