Best Buy offers the Samsung Prevail LTE 8GB Boost Mobile Prepaid Smartphone in White, model no. SPHG360ABB, bundled with a $20 Best Buy Gift Card for $79.99 with free shipping. (The gift card will appear in-cart automatically.) Assuming you'll use the gift card, that's the lowest total price we could find by $20. It features a 1.2-Ghz quad-core processor, 4.5" touchscreen, 5-megapixel camera, 2-megapixel front camera, 8GB internal memory, microSD slot, and Android 4.4 (KitKat).