Buy it on: Amazon
Going for a sleek rounded, palm-of-the-hand look, Toshiba's offerings are a different form factor than the boxy rectangular Western Digital hard drives -- but they don't usually come in all the nifty color options.
At slightly more than your 1TB drive, this external HDD may be the best "bang for your buck" option available right now for expanding your Xbox One X storage space.
Between the 1TB onboard HDD of the console and the extra 2TB from the external drive, space won't be nearly as cramped. And it's unlikely you are going to hit capacity unless you are consistently buying the newest and biggest games every month.