All units in D grade condition for different reasons, Some have sort of a sticky power button, where the power button works but it doesn't have the normal spring or bounce to it. Occasional light spot on LCD or degraded battery life are common with these. They have may be D grade for cosmetic reasons, ie heavy scratches on metal casing or front glass but all have a functional and good LCD and are 100 percent tested and works. 

 They have been reset, they work but are sold for parts because of these defects. 

Does not include lightning cable or charger. Ships free!