X1 Card manufactures a smart credit card made with 17 grams of sleek, stainless steel. It harnesses the power of technology to offer smart credit limits, an unparalleled rewards program, and automated features that will transform the way you shop and spend. X1 Card is partnered with Visa Signature, allowing cardholders to use it at more than 46 million merchants around the world. The company is co-founded by Twitter alums Deepak Rao and Siddharth Batra and backed by PayPal co-founder Max Levchin and founding COO David Sacks, Harrison Metal founder Michael Dearing, former Twitter COO Adam Bain, Libra co-creator & Instagram’s former head of product Kevin Weil and more.