T-Mobile’s going big for Black Friday. The carrier is hosting a buy-one-get-one promotion in which flagships from Samsung, Apple, and LG are up for grabs. When you purchase your two phones, the carrier will give you the one of lesser value for free.

Here are the participating phones:

  • Samsung Galaxy S8, S8+, and S8 Active
  • Samsung Galaxy Note 8
  • LG G6
  • LG V30, V30+, and V20
  • Apple iPhone 7 and Plus
  • Apple iPhone 8 and Plus

Both new and existing customers are eligible but will need to add a line. Also, the phones must be purchased on T-Mobile’s Equipment Installment Plan, though it’s still a great deal. Some customers just might find it frustrating they need to add a line to their accounts.

Other deals from T-Mobile for Black Friday include discounts on magenta-colored products like the UE MEGABOOM, UE BOOM 2, and Mophie Powerstation Mini. Over at MetroPCS, meanwhile, a new line being activated nets a free Samsung Galaxy J7 Prime and a year of Amazon Prime.

T-Mobile’s buy-one-get-one offer on the flagships in its lineup goes live on Friday, November 17. Notice that’s a week before Black Friday. There’s a growing trend among all retailers that, rather than limiting everyone to a small window, it’s smarter to host promotions across seven days to give more people time. So you’ll have more than enough time to look at the phones T-Mobile sells and make a wise decision.