The best plan is the one that matches how much data you actually use. Open your phone’s settings and look at your cellular data for the last three months, then plan for your highest month, not your average. Our guide on how much data you need walks through it, and what is mobile data covers the basics. If you use under 10GB, the Vouch Premium plan at $30 a month fits. Up to 30GB, choose Elite at $40. Both are plus fees and taxes. See our full college phone plan guide.