Currently, one of the best Galaxy S25 preorder deals comes from Samsung. For a limited time, you can get up to $500 off your Galaxy S25 preorder with trade-in. Plus, you'll get a free $50 Samsung credit. Likewise, you can get up to $700 off the Galaxy S25 Plus or up to $900 off the Galaxy S25 Ultra at Samsung.

The Galaxy S23 series is about to be two generations old, but it still has something to offer for those on a tight budget.

With that out of the way, you'll want to head directly to the Samsung website and start the preorder process for the Galaxy S25 Ultra. You'll be able to grab it unlocked so that it works with any wireless carrier, and then you'll need to decide how much storage space you want, with Samsung providing three options: 256GB, 512GB, or 1TB.