Samsung is offering $200 or more towards the purchase of a Galaxy S6 or S6 Edge for consumers who trade in their qualifying smartphones.
Although, there is a catch. The phone has to be fully functional, branded for AT&T, Sprint, T-Mobile, Verizon, or US Cellular and has to be a Galaxy S 4 or 5 or an iPhone 5 or newer in order to get the $200 offer.
The promotion lasts until 11:59:59 PM ET August 11, 2015 and is only offered to citizens of the U.S., the District of Columbia, and Puerto Rico who are 18 years or older.
You’ll need to buy one of the newest Galaxies by this time and upload your receipt to Samsung’s promotion website by August 18, 2015. There, you will find the instructions for the ‘Make the Six Switch’ promotion and the full terms of service, as well.
Of course, Samsung would give its deal to customers of its previous devices, namely the Galaxy S4 and Galaxy S5,  in order to keep them within their own ecosystem. While it appears the company only extended this to iPhone 5, iPhone 5s, iPhone 6, and iPhone 6+ users based on the taglines and fine print, it is taking in smartphones from other manufacturers, according to this page.
I went through the process and selected two phones, the 32GB LG G3 on Verizon and the HTC One M8 on Verizon, both of them in working condition. I was offered $85.00 and $93.56, respectively, less than half than what Samsung is offering for older, functioning Galaxies and working iPhones.
It would seem that the $200 offer only stands for old Galaxy S devices starting at the S4 and old iPhones starting with the 5 that are fully functional and branded for the popular carriers listed above.
Nevertheless, if you’ve been waiting for a deal on either S6 and are willing to trade in select, now’s a good chance to get a new Galaxy, especially if you have one of the main phones listed or a new device in general.
Source: Samsung