6th Ave through ebay has the GoPro Hero6 Black 4K 60FPS Action Camera for $349.99 (was $499.99) with Free Shipping for a limited time.

The newly released GoPro HERO6 features a 2″ color touch-screen LCD display, ultra-wide angle glass lens, Linear Video Mode Corrects Distortion,  4K video at up to 60FPS and 1080 at 240FPS, 12MP photos in single, burst and time-lapse modes; waterproof without additional housing at depths up to 33ft, voice control, WiFi, Bluetooth, GPS and a microSD slot.