Microsoft Store offers the Microsoft Xbox One S 500GB Console in White, model no. ZQ9-00041, bundled with Halo 5: Guardians for Xbox One, a download of Halo: The Master Chief Collection for Xbox One, and a $50 Microsoft Gift Card for $299 with free shipping. Assuming you'll use the gift card, that's $21 under our mention from four days ago and the lowest total price we could find by $50. This newly released console is 40% smaller than the current model and features 4K Ultra HD video and Blu-ray support, High Dynamic Range, streamlined wireless controller, integrated power supply, IR blaster, and a vertical stand.
Of note, also available is the 1TB version with a $50 Microsoft Gift Card for $349 with free shipping. Assuming you'll use the gift card, that's savings of $50.