Ends at 9/29 at 10PM PT. Electronics.woot! has the refurbished Apple iPhone 13, 13 Pro, and 13 Pro Max smartphones (scratch & dent) from $520 with the discount shown on the product page. Shipping is $6; free for Amazon Prime members. 

The pictured refurbished Apple iPhone 13 Pro Max 256GB 6.7" Fully Unlocked Smartphone (multiple color options) is on sale for $800.