16 GB RAM, 256 GB Storage, 5000 mAh battery. The back that has dust on it is from the cover. The device has never been opened or had anything changed in it. I'm selling it as I bought it, with 3 covers, its box, charger, invoice, and even the store bag I bought it from. The phone, Mashallah Tabarak Allah, lasts with you in games, never lags, and doesn't overheat. The reason for selling is I'm getting a different phone.