Credit: Joe Maring / Android AuthorityTL;DRT-Mobile is offering four lines and four phones for $25 per line with no trade-ins required.The deal is only available to switchers coming from Verizon or AT&T.Customers can choose between a free iPhone 17 or Galaxy S25 on the entry-level Essentials plan.Recently, I released an article on what I thought were the five best T-Mobile deals available, but it turns out I missed one because it didn’t exist yet. T-Mobile was saving its best offer for last it seems, as it has announced a few new holiday deals. Chief among these offers is a promotion that gives you four lines and four phones for $25 per line, all without any trade-ins required.This deal gives you the choice between an iPhone 17 or a Galaxy S25. You might be thinking that T-Mobile already offered these phones for free without a trade-in. That’s true, but previously, you needed a higher-tier plan.