Microsoft Store offers the Unlocked Acer Liquid M220 8GB Windows Phone 8.1
, model no. HM.HMUAA.001, for $49
with free shipping
. That's $10 under our July mention and the lowest total price we could find now by $11. It features a 4" 480x800 touchscreen, dual-core 1.2GHz Qualcomm processor, 802.11n WiFi, Bluetooth 4.0, microSD card slot, 5-megapixel rear-facing and 2-megapixel front-facing cameras, and Windows Phone 8.1 OS.