Galaxy S3, Galaxy S4 Trade Ins: Lock In Before the Galaxy S5 Release Josh Smith03/23/2014 Now that we know the Galaxy S5 price and the official U.S. release, it is time for buyers to look at the best Galaxy S3 and Galaxy S4 trade in values. By trading in a Galaxy S3 or Galaxy S4 users can often earn more than enough to pay for the Galaxy S5, and don’t need to deal with the hassles of eBay or Craigslist buyers. Depending on the condition of the phone a Galaxy S3 trade in could be worth $100 or more and a Galaxy S4 trade in could bring as much as $200, which would pay for an on contract Galaxy S5.Advertisement The Samsung Galaxy S5 release is three weeks away, and pre-orders are already live at prices from $199 to $0 down depending on your choice a contract or payment plan. Trading in the Galaxy S4 or Galaxy S5 will allow you to fund your new phone and accessories. Galaxy S3 and Galaxy S4 trade-in deals offer a good deal for users that want to upgrade. Buyers can lock in a Galaxy S4 trade in today, and keep the phone until the Galaxy S5 arrives, ensuring the best deal possible. Prices drop dramatically after the release date. ItSelling on eBay or Craigslist does not allow users to hold on to the phone for weeks before selling it.Advertisement Gazelle and NextWorth are the most popular Galaxy S3 and Galaxy S4 trade-in locations, though services like Amazon Trade in, Glyde and eBay’s Instant service are other good options. We prefer Nextworth and Gazelle because they both offer a 30 day price lock, so even if the Galaxy S5 takes a few days to arrive, buyers don’t need to go without a phone.Advertisement Here are some of the trade in prices available on Gazelle and Nextworth. Click through to check the price for your Galaxy S4 or Galaxy S5 as prices vary by carrier, condition and storage size. Gazelle – AT&T Like New Galaxy S4 – $187 Galaxy S3 – $104 Nextworth – AT&T Like New Galaxy S4 – $134 Galaxy S3 – 77 Glyde – Like NewAdvertisement Galaxy S4 – $298 Galaxy S3 – $218 With NextWorth and Gazelle you deal directly with a company that evaluates your Galaxy S4 trade in and sends you cash. Glyde is a more like a traditional sale, but the company will send you a shipping package to send to a buyer. This can result in a higher price, but it isn’t an instant and assured price like on the other trade in services. The Samsung Galaxy S5 features a 5.1-inch 1080p display with new brighter and dimmer modes to work in the sun and in a dark room with easier viewing. Users can choose a white or black model in the U.S. with 16GB of storage. The Galaxy S5 focuses on health with a pulse reader and new S Health app that helps users get in shape. There is a fingerprint reader on the hoe button for easy unlocking without entering a passcode.