Walmart is now another place to trade in your smartphone and get a credit up to $300 off on over 100 different smartphones from Apple, Samsung, HTC and Motorola. An Apple iPhone 5 in working condition will get you $300.00, a 16GB Samsung Galaxy S3 will net you just under $150.00 and an HTC One is worth under $240.00.  The best part about this is that you get an eGift Card for Walmart to use for a new phone from Walmart. If you’re looking to upgrade your phone this is another way to trade in your smartphone without having to sell it privately.