this review will help people who are confused in buying between wd elements and seagate expansioni bought both the hard drives of 15tb and i have compared it in every possible way this review will help to suit you which hard drive to buy1build quality wd elements is very compact lightweight and im very impressed with its build but vibrations are max on wd this is only drawback on this device seagate is plastic build but its goodmy seagate hard drive was broken when i dropped it