A:Answer Purchasing the LTE version of this watch gives you the capability to use certain features of the watch without having to take your phone with you. You can receive text, calls and use some apps that require data (ie. Weather). This would require a data package from your cell provider. It is usually $10/ month. If you will always have your phone with you, thenyou can use it without a plan. You probably shouldn't pay the extra money and just get the non-LTE watch.