The Galaxy S6 is a hit. Not only is it popular, but also pretty expensive, which means your wallet is going to take a hit if you pick one up. However, the Samsung Galaxy S5 is on sale right now for $249. Which is a fantastic price for a smartphone that is still pretty good, even a year later. This is the G900 model, for those interested. And it is GSM unlocked, so it will work on T-Mobile and AT&T.