The new Samsung Galaxy phones have just been revealed, and pre-orders are now open. If you have a phone to trade in, you could score a Galaxy S25 Ultra, Galaxy S25 or Galaxy S25+ without paying a cent upfront. There will be more deals, but AT&T has some of the first.Samsung Galaxy S25 Ultra in titanium black.SamsungSamsung Galaxy S25 UltraIf you have an eligible phone to trade in, AT&T will give you a discount of up to $1,300 off the Samsung Galaxy S25 Ultra, which makes the 256GB storage model free, since its regular price is $1,299.You need to trade in a phone with a trade-in value of $230 or more and to pick or upgrade to an eligible AT&T unlimited plan which costs from $75.99 a month. The plan runs for 36 months.For instance, if you have a Samsung Galaxy S24 with 128GB storage in good condition, youll get the full $1,300 trade-in value.Theres another part to this deal: when you take it up, you can get a Galaxy Watch and/or Galaxy Tab for 99c per month, that is, under $36 each.Samsung Galaxy S25 And Galaxy S25+If you prefer the S25 or S25+, there are deals here, too. If you have an eligible phone, that is a Samsung Galaxy S, Z or Note series, you can snag the S25 or S25+ for free. The phone can be in any condition and from any year. So if you have a Samsung Galaxy S21+ with 128GB storage, even if it doesnt power on and off, has a screen with cracks and doesnt have the activation lock turned off, it will still have a trade-in value of $800, which is the price of the Samsung Galaxy S25.This deal also has the Galaxy Watch and Galaxy Tab deal of $0.99 a month for 36 months. And it also requires an AT&T plan costing from $75.99 a month. All offers available from att.com.The deals highlighted in this post were independently selected by the Contributor and do not contain affiliate links.