Companies release tablets in both Wi-Fi only and Wi-FI plus cellular compatibility configurations. Tablet sales have skyrocketed over the past few years, and Wi-Fi only models have raked in considerably more customers than their cellular compatible counterparts. That's because Wi-Fi only tablets tend to be cheaper, and the perfect option for those who are content with connecting to a Wi-Fi network whenever the need for a data connection arises. Mobile carriers don't make any money off of them, and most customers who do have cellular compatible tablets, usually try to connect to a Wi-Fi network when they can to save on data charges.
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