T-Mobile is offering up free Samsung Galaxy phones to all lines on qualifying plans as part of its latest promotion. Customers who are on the 6GB or 10GB family plan will be able to get a free Galaxy On5 or Galaxy J7 through 24 bill credits. Each line on the plan will be eligible for the promotion, and it applies to new accounts and existing customers on these plans.

Samsung Galaxy On5

From T-Mobile's announcement:

Plus, with this epic deal, families can get 4 lines with up to 6GB of LTE data per line – 24GB total – for just $30 a line per month. Adding a line is just $20 more per month. And, absolutely everyone in the family can get a brand new Samsung Galaxy On5 – which normally sells for $140 – after monthly service credits during 24-month no-cost finance agreement. That means, you'll see a credit for the cost of the free phone on your monthly wireless bill, and after 24 months, you'll have paid nothing for the phone, except sales tax, and will owe nothing more.

Data-hungry families also can get up to 10 gigs of high-speed data per line for just $40 a line for the first four people in the family, and just $30 for everyone else. Plus, everyone can get a Samsung Galaxy J7 per line on us, which normally sells for $240. And, those gigs go even further on the Un-carrier network, since the kids will be able to stream all the music and video they want from their favorite services without burning their high-speed data with Binge On and Music Freedom and roll forward any unused data for use up to a full year later with Data Stash, up to 20GB per line.

The promotion begins on July 13, and T-Mobile just states that it will be available for a limited time, with no specific end date mentioned. Will you be taking T-Mobile up on this offer for any lines on your account? Let us know your thoughts in the comments!