TomTop offers the Docooler M9S-Pro 4K 8GB Android Smart TV Box for $24.99 plus $4.82 for shipping. That's the lowest total price we could find by a buck. Features include an Amlogic S905X 2GHz quad-core processor, 1GB RAM, 8GB internal storage, 4K support, 802.11n wireless, Ethernet, HDMI, four USB ports, SDHC card slot, Android 6.0 OS (Lollipop), and remote control.