Prepaid smartphone sales are starting to become more popular, according to new data from market researcher NPD Group.
NPD released on Wednesday a study that found 32 percent of all smartphone purchases came from prepaid devices during the first quarter. During the same period in 2012, that figure stood at 21 percent.
Although "postpaid" devices, which are subsidized but can lock customers into a long-term agreement, are still most popular, NPD believes the prepaid jump is due to consumers finding more value in older devices that can still hold up well in today's crowded smartphone space.
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