I would recommend you check your credit report; it will help you to choose the right card.
We wouldn’t recommend the Walmart card because it has high APRs and only a standard 1% cash back on purchases. Instead, if you have good-to-excellent credit, consider one of Discover cards. Discover offers 5% cashback bonus at Walmart online when shopping via Discover Deals (note that offers presented on Discover Deals can expire, please visit Discover Deals to see current offers and their terms). Plus, Walmart is not the only retailer you can find there and earn additional savings.
If you still want a Walmart credit card, you can apply for this card at Walmart.com. Scroll down the page to the Financial Services section and click “apply now”.