Is buying a used - good condition iPhone 6 (black) for £319 good? No box. "Apple iPhone 6 16GB - Space Grey - Unlocked (Grade C) + Warranty. Average used condition WITHOUT original box. Noticeable scratches and marks to screen and/or casing.Included Accessories: USB Cable ONLY. This item is covered by 60 Day Freedom Mobiles Warranty from date of delivery. « Show less" Thanks.