The box is opened but the item is unused and is only a few days since bought. OS: Android 5.1 Lollipop
Resolution: 1280 x 800 pixels
Internal Memory: 8GB
External Memory: up to 200gb (Micro SD) If you want detailed information about the tablet, here's a link to the official site: http://www.samsung.com/uk/consumer/mobile-devices/tablets/galaxy-tab-a/SM-T280NZKABTU. Don't hesitate to contact me if you have any:)