Amazon offers the Unlocked Blu Win HD LTE 4G Windows 8.1 Smartphone in four colors (Grey pictured) for $89.99 with free shipping. That's tied with our mention from five days as the lowest total price we've seen. (It's the best deal today by $59.) This GSM phone features a Qualcomm Snapdragon 410 1.2GHz quad-core processor, dual SIM capability, 5" 720x1280 touchscreen LCD, 1GB RAM, 8GB internal memory, front and rear cameras, WiFi, Bluetooth, microSD slot, and Windows 8.1 OS.

Of note, this item is currently out of stock, but is expected to ship on February 22.