For a limited time, Ultra Mobile is offering its 2GB 12-month 5G data plan for just $10 per month (opens in new tab). That’s $48 off and one of the least-expensive data plans we’ve seen. For more ways to save, make sure to check out our guide to the best ultra mobile coupon codes. Ultra Mobile offers affordable, flexible, and family friendly plans. The network is a mobile virtual network operator. MVNOs provide cellular service using another carrier’s towers — in this case T-Mobile’s 5G network. The Ultra Mobile network works with most unlocked GSM phones. This deal includes a 3-in-1 SIM card.