Existing Verizon Wireless customers have a choice to make. They can stick with their current plan or switch to one of the company’s Share Everything plans when they become available on June 28. Under the new plans, subscribers pay for two things: the pool of wireless data they use every month, and the devices they add to the plan. Here’s a brief look at prices and a breakdown of which plans are best-suited for various types of users.

— The base cost is a monthly data allowance, shared among all the devices: