T-Mobile's BOGO deal requires you to add a new line, and purchase either phone using an EIP. That means that the 32GB Samsung Galaxy S7 in Black Onyx and Gold Platinum will cost you $0 down, and $27.92 a month over 24 months. The 32GB Samsung Galaxy S7 edge in Black Onyx, Silver Titanium and Gold Platinum will cost you $59.99 down, and $30 a month over 24 months.
T-Mobile will reimburse you for the free phone by sending you a rebate for the full retail price of both models. That is much different than AT&T's BOGO deal, which reimburses customers $23 over 30 months, just enough to cover the Samsung Galaxy S7 (the buyer is responsible for the remaining cost if he wants to buy a Galaxy S7 edge).
In addition to the BOGO deal, which is limited to two free phones, those purchasing the Galaxy S7 through March 18th from the nation's third largest carrier are entitled to a free Gear VR headset, six free games, and one year of Netflix for free.
If you're looking to surprise your significant other, or your kids, with a Samsung Galaxy S7 or Samsung Galaxy S7 edge, you might want to take advantage of T-Mobile's BOGO offer. Remember, it is good for a limited time only.