Buy Spry via eBay offers the open-box Unlocked Samsung Galaxy S8+ 64GB 4G LTE GSM Android Smartphone in Midnight Black or Orchid Gray for $574.99 $579.99 with free shipping. That's $5 under last month's mention and the lowest price we've seen. (It's the best today by $150.) It features an 8-core (2.3GHz Quad + 1.7GHz Quad) processor, 6.2" 2960x1440 touchscreen Super AMOLED LCD, 4GB RAM, 64GB internal storage, 12-megapixel rear-facing cameras, 8-megapixel front-facing camera, 4K video recording at 30fps, 802.11ac wireless, Bluetooth 5.0, microSD card slot, water-resistance, and Android 7.0 (Nougat).

Note: This item is new but may not ship in the original packaging. A 60-day Buy Spry warranty applies.