Hex has introduced its new Vision Plastic Watch Band for the sixth-generation iPod nano. Arriving in red, black, white, pink, and blue, the band features a reinforced clip-in, clip-out plastic mounting plate and a color-matching custom silicone strap with ABS buckle, while offering full access to all of the nano’s ports and controls. Hex’s Vision Plastic Watch Band for the sixth-generation iPod nano is available now and sells for $25.…