T-Mobile

Spending: The best smartphone plan for you

We recognize that one size does not fit all, so we have chosen plans for various kinds of users. Plus, we recommend three devices with long battery life. Prices do not include device payments, and data speed is 4G LTE except where otherwise noted.

Families

With the T-Mobile One plan, a family of four pays $160 a month (you must make automatic payments to qualify for that price). The plan provides unlimited calling, texting and data in the U.S., Canada and Mexico. Video streams in standard definition, but that shouldn't bother most people who view video on a phone, says Maggie Reardon, author of the CNET.com column "Ask Maggie." The plan also comes with unlimited...

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