Cafago offers the Scishion V88 4K WiFi Smart Android TV Box for $27.83. Coupon code "ZV2347GM" cuts it to $23.08. With free shipping, that's the lowest price we could find by $2. Features include a RK3229 quad-core processor, 1GB RAM, 8GB eMMC storage, 4K support, 802.11n wireless, SD card slot, HDMI, four USB ports, and Android 6.0.
Note: This item ships from mainland China and may take two to four weeks to arrive.