Between foldable smartphones like the Samsung Galaxy Z Fold 5 and Flip 5, the Pixel Fold, and the OnePlus Open, it’s easy to forget the Motorola Razr Plus exists. The flip phone is a throwback to Motorola’s roots, only the sharp-edged number pad departs to make room for the 6.9-inch OLED display that greets you when opening it. (You can still ride the nostalgic wave with a software-based dialer resembling the classic design.) Thanks to a steep 45 percent discount at Woot that’s only…