Best Buy via eBay offers the ZTE Blade Spark 16GB 4G Prepaid Android Phone for AT&T GoPhone in Grey for $69.99 with free shipping. That's the lowest price we could find by $30 without a plan. Features include a Qualcomm Snapdragon 425 1.4GHz quad-core processor, 5.5" 1920x1080 LCD, 2GB RAM, 16GB storage, 13-megapixel rear camera, 5-megapixel front camera, 802.11n wireless, Bluetooth 4.2, and Android 7.1 OS (Nougat).