Nova Tech via Amazon offers the DBPower 12-Megapixel 4K WiFi Waterproof Action Camera for $73.99. Coupon code "XKGELVE6" cuts it to $48.99. With free shipping, that's tied with last week's mention, $31 off, and the lowest price we could find. It records video at up to 30fps and features two rechargeable batteries and remote control.