After ATT, U.S. Cellular and T-Mobile announced pre-order and availability details for their Galaxy S5 versions, RadioShack also revealed its own pre-order details for the handset. Starting with March 21, the retailer will take Galaxy S5 pre-orders in its retail stores, offering buyers $50 off the handset in form of a coupon. Additionally, RadioShack offers $75 to $300 to customers who trade-in old devices when buying the Galaxy S5. The retailer will start shipping the Galaxy S5 in mid-April, as pre-orders are “subject to availability, which may vary by wireless carrier.” The Samsung Gear smartwatches will also be available in select RadioShack retail stores and online. The retailer did not mention what colors and storage options will be available for