Walmart offers the refurbished ZTE Atrium 4GB Android Smartphone for Straight Talk in Black for $14.99. Opt for in-store pickup to avoid the $5.99 shipping charge. That's $29 under the lowest price we could find for a new unit. Features include a 4.5" 854x480 display, 1.2GHz dual-core processor, 1GB RAM, 4GB storage, 5-megapixel rear camera, 802.11n wireless, Bluetooth, and Android 4.4 OS (KitKat).

Note: A 1-year warranty applies, but it's unclear who backs it.