Winner: Jet. Even though Amazon offers a lot more to choose from, Jet's design was much more straightforward. Amazon was cluttered with unrelated products and split into so many categories that it was hard to find an exact product without searching. The prices were sometimes cheaper on Amazon and sometimes cheaper on Jet, so it's hard to say which site actually offered the better deals.
Amazon offers free two-day shipping and access to streaming services with a Prime membership. But Jet has its own perks that don't require a membership, like free two-day shipping on orders over $35 and its own rewards program. Jet was more user-friendly and provided a better overall shopping experience.